CKM Unitary tests with Tau decays
|
|
- Joel Sullivan
- 5 years ago
- Views:
Transcription
1 CKM Unitary tests with Tau decays Emilie Passemar Indiana University/Jefferson Laboratory Mini Workshop on Tau physics CINVESTAV, Mexico, May 3, 017
2 Outline 1. Introduction and Motivation. from inclusive hadronic τ decays 3. from exclusive hadronic τ decays 4. Conclusion and Outlook
3 1. Introduction and Motivation
4 1.1 Test of New Physics : Extraction of the Cabibbo-Kobayashi-Maskawa matrix element Ø Fundamental parameter of the Standard Model Check unitarity of the first row of the CKM matrix: Cabibbo Universality V + V + V = 1 ud us ub? Ø Input in UT analysis Negligible (B decays) Look for new physics Ø In the Standard Model : W exchange only V-A structure Emilie Passemar 4
5 1.1 Test of New Physics : Ø BSM: sensitive to tree-level and loop effects of a large class of models V + V + V = 1+ Δ ud us ub CKM BSM effects : ΔCKM ( Λ) ~ v Emilie Passemar Ø Look for new physics by comparing the extraction of from different processes: helicity suppressed K µ, helicity allowed K l3, hadronic τ decays 5
6 1. Paths to V ud and From kaon, pion, baryon and nuclear decays V ud π ± π 0 eν e n peν e π lν l K πlν l Λ peν e K lν l d V d V s = + θ ud us From τ decays (crossed channel) V ud τ ππν τ τ πν τ τ h NS ν τ τ Kπν τ τ Kν τ τ h S ν τ (inclusive) Emilie Passemar 6
7 1. Paths to V ud and From kaon, pion, baryon and nuclear decays V ud e e n pe e l l K l l pe e K l l From decays (crossed channel) V ud τ ππν τ h NS K K h S (inclusive) Emilie Passemar 7
8 1. Paths to V ud and These are the golden modes to extract V ud and Only the vector current contributes Normalization known in SU() [SU(3)] symmetry limit Corrections start at nd order in SU() [SU(3)] breaking Ademollo & Gato, Berhands & Sirlin Currently the most precise determination of V ud and V ud (0.0 %) and (0.5 %) Emilie Passemar 8
9 1. Paths to V ud and From kaon, pion, baryon and nuclear decays V ud e e n pe e l l K l l pe e K l l n pe e : Both V and A currents contribute need experimental information on A (e.g. asymmetry (r A = g A /g V )) Free of nuclear uncertainties Probe different combinations of BSM operators (e.g. right-handed currents, etc ) Emilie Passemar 9
10 1. Paths to V ud and From kaon, pion, baryon and nuclear decays V ud e e n pe e l l K l l pe e K l l From decays (crossed channel) V ud τ ππν τ h NS K K h S (inclusive) Emilie Passemar 10
11 1. Paths to V ud and K l / l and K/ Only the axial current contributes Need to know the decay constants F K, F Lattice QCD Probe different BSM operators than from the vector case Input on F K / F /V ud very precisely Emilie Passemar 11
12 1. Paths to V ud and From decays (crossed channel) V ud τ ππν τ h NS K K h S (inclusive) Possibility to determine V ud, from inclusive decays Use OPE to calculate the inclusive BRs Different test of BSM operators inclusive vs. exclusive Emilie Passemar 1
13 . from inclusive hadronic τ decays
14 .1 Introduction d V d V s = + θ ud us Tau, the only lepton heavy enough to decay into hadrons m τ ~ 1.77GeV > Λ QCD use perturbative tools: OPE Inclusive τ decays : τ ud, us ν fund. SM parameters We consider ( ) ALEPH and OPAL at LEP measured with precision not only the total BRs but also the energy distribution of the hadronic system huge QCD activity! α S ( m τ ),, m s Γ ( τ ν τ + hadrons S=0 ) Γ ( τ ν τ + hadrons S 0 ) τ ( ) Davier et al 13 Observable studied: ( ) R τ Γ τ ν τ + hadrons Γ τ ν τ e ν e ( ) Emilie Passemar 14
15 . Theory d V d V s = + θ ud us ( ) R τ Γ τ ν τ + hadrons N parton model prediction Γ τ ν τ e C ν e ( ) QCD switch R τ = R τ NS + R τ S V ud NC + NC S = R τ V NS us V R ud τ (α S =0) Figure from M. González Alonso 13 Emilie Passemar 15
16 . Theory d V d V s = + θ ud us ( ) R τ Γ τ ν τ + hadrons N parton model prediction Γ τ ν τ e C ν e ( ) QCD switch R τ = R τ NS + R τ S V ud NC + NC Experimentally: R τ 1 Be Bµ = = 3.691± B e (α S 0) Emilie Passemar 16
17 3. Theory d V d V s = + θ ud us ( ) R τ Γ τ ν τ + hadrons N parton model prediction Γ τ ν τ e C ν e ( ) QCD switch R τ = R τ NS + R τ S V ud NC + NC Experimentally: R τ 1 Be Bµ = = 3.691± B e Due to QCD correc1ons: R = V N + V N +Ο τ ( α ) ud C us C S (α S 0) Emilie Passemar 17
18 . Theory d V d V s = + θ ud us From the measurement of the spectral functions, extraction of α S, ( ) R τ Γ τ ν τ + hadrons N naïve QCD prediction Γ τ ν τ e C ν e ( ) QCD switch Extraction of the strong coupling constant : R NS τ = V NC ud + O ( α S ) α S measured calculated (α S 0) Determination of : S ( ) = R τ V R + O α NS S ud τ Main difficulty: compute the QCD corrections with the best accuracy Emilie Passemar 18
19 .3 Calculation of the QCD corrections Calcula-on of R τ : m ds s s ( 1 ) ( 0 ( ) Im ( ) Im ) Rτ mτ = πsew s i + ε Π + + Π ( s+ iε) m m m 0 τ τ τ τ Braaten, Narison, Pich 9 Analy-city: Π is analy-c in the en-re complex plane except for s real posi-ve Cauchy Theorem R τ (m τ ) = 6iπ S EW ds! s =mτ m τ 1 s m τ 1 + s m τ Π ( 1) s ( ) + Π 0 ( ) ( ) s We are now at sufficient energy to use OPE: ( J ) 1 ( J ) Π () s = C (, s µ ) OD( µ ) ( s) D D= 0,,4... dimo= D Wilson coefficients Operators μ: separa-on scale between short and long distances Emilie Passemar 19
20 .3 Calculation of the QCD corrections Calcula-on of R τ : Braaten, Narison, Pich 9 ( ) = C EW ( 1+ P + NP ) Rτ mτ N S δ δ Electroweak correc-ons: Perturba-ve part (D=0): S = 1.001(3) Marciano &Sirlin 88, Braaten & Li 90, Erler 04 EW δ P = a + a + a + a τ 5.0 τ 6 τ 17 τ... 0% α s( mτ ) aτ = π Baikov, Chetyrkin, Kühn 08 ( ) NS D=: quark mass correc-ons, neglected for R m, m but not for S τ u d Rτ ( ms ) D 4: Non perturba-ve part, not known, fi>ed from the data Use of weighted distribu-ons Emilie Passemar 0
21 .3 Calculation of the QCD corrections D 4: Non perturba-ve part, not known, fi>ed from the data Use of weighted distribu-ons Exploit shape of the spectral func-ons to obtain addi-onal experimental informa-on Le Diberder&Pich 9 Zhang Tau14 R S τ R R 00 ( m ) s Emilie Passemar 1
22 .4 Inclusive determination of With QCD on: S ( ) = R τ V R + O α NS S ud τ QCD switch Use OPE: NS R τ ( m τ ) = N C S EW V ud 1 + δ ud P + δ NP ( ) δ R τ R τ,ns R τ,s V ud computed using OPE S R τ ( m τ ) = N C S EW 1 + δ us P + δ NP ( ) SU(3) breaking quan-ty, strong dependence in m s computed from OPE (L+T) + phenomenology δ R τ,th = 0.04(3) (α S 0) Gamiz et al 07, Maltman 11 = R τ,s R τ,ns Emilie Passemar V ud δ R τ,th HFAG 17 R τ,s = (8) R τ,ns = (84) V ud = (1) = ± exp ± th 3.1σ away from unitarity!
23 From Unitarity Kaon and hyperon decays K l3 decays (+ f + (0)) K l /π l decays (+ f K /f π ) Hyperon decays Flavianet Kaon WG 10 update by Moulson CKM16 τ decays τ -> s inclusive τ -> Kν absolute (+ f K ) τ branching fraction ratio τ -> Kν / τ -> πν (+ f K /f π ) Our result from Belle BR τ -> Kπν τ decays (+ f + (0), FLAG) BaBar & Belle HFAG NB: BRs measured by B factories are systema-cally smaller than previous measurements Emilie Passemar 3
24 3.5 using info on Kaon decays and τ Kπν τ (0.713 ± 0.003)% (0.471 ± 0.018)% Antonelli, Cirigliano, Lusiani, E.P. 13 (0.857 ± 0.030)% (.967 ± 0.060)% Longstanding inconsistencies between τ and kaon decays in extraction of seem to have been resolved! R. Hudspith, R. Lewis, K. Maltman, J. Zanotti 17 Crucial input: τ Kπν τ Br + spectrum = 0.9 ± 0.00 exp ± theo need new data 4
25 3.5 using info on Kaon decays and τ Kπν τ (0.713 ± 0.003)% (0.471 ± 0.018)% Antonelli, Cirigliano, Lusiani, E.P. 13 (0.857 ± 0.030)% (.967 ± 0.060)% Longstanding inconsistencies between τ and kaon decays in extraction of seem to have been resolved! R. Hudspith, R. Lewis, K. Maltman, J. Zanotti 17 K l3, PDG ± K l, PDG ± CKM unitarity, PDG ± τ s incl., Maltman ± 0.00 ± Crucial input: τ Kπν τ Br + spectrum = 0.9 ± 0.00 exp ± theo need new data V us τ s incl., HFLAV ± τ Kν / τ πν, HFLAV ± τ average, HFLAV ± HFLAV Spring 017 5
26 3. from exclusive hadronic τ decays : Ø τ Kπν τ decays
27 3.1.1 Introduction: key ingredients Master formula for τ Kπν τ : ( ) = G F Γ τ Kπν τ γ m τ 5 96π 3 C K τ S EW K 0 π f+ (0) τ I K 1 + δ Kτ EM +! Kπ δ SU() Experimental inputs from HFAG Banerjee et al. 1 Emilie Passemar 7
28 3.1. Radiative corrections Master formula for τ Kπν τ : ( ) = G F Γ τ Kπν τ γ m τ 5 96π 3 C K τ S EW K 0 π f+ (0) τ I K 1 + δ Kτ EM +! Kπ δ SU() Theoretical inputs : Ø S ew : Short distance electroweak correction S ew = Marciano &Sirlin 88, Braaten & Li 90, Erler 04 Emilie Passemar 8
29 3.1. Radiative corrections Master formula for τ Kπν τ : ( ) = G F Γ τ Kπν τ γ m τ 5 96π 3 C K τ S EW K 0 π f+ (0) τ I K 1 + δ Kτ EM +! Kπ δ SU() Theoretical inputs : τ - Ø S ew : Short distance electroweak correction Ø : Long-distance electromagnetic corrections F.V. Flores-Baez, J.R. Morones-Ibarra 13 K - Antonelli, Cirigliano, Lusiani, E.P. 13 Ø à ChPT to O(p e ) \ 0 Kl δ EM π 0 ν τ ( ) K τ δ EM = 0.15 ± 0. % Emilie Passemar ( ) K τ δ and EM = 0. ± 0. % S ew = à Counter-terms neglected based on τ - π π 0 ν τ Cirigliano, Neufeld, Ecker 0 F. Flores-Baez, A. Flores-Tlalpa, G. Lopez Castro, G. Toledo Sanchez 06 9
30 3.1. Radiative corrections.5 u Dalitz Plot Τ K 0 Π Ν F.V. Flores-Baez, J.R. Morones-Ibarra Τ K Π 0 Ν s Emilie Passemar 30
31 3.1. Radiative corrections Master formula for τ Kπν τ : ( ) = G F Γ τ Kπν τ γ m τ 5 96π 3 C K τ S EW f+ K 0 π (0) I K τ 1 + δ Kτ EM +! Kπ δ SU() Theoretical inputs : Ø S ew : Short distance electroweak correction S ew = Ø Kl δ EM : Long-distance electromagnetic corrections 0 ( ) K τ δ EM = 0.15 ± 0. % and ( ) K τ δ EM = 0. ± 0. % Ø! Kπ δ SU()! Kπ δ SU() : Isospin breaking corrections = f K + π K f 0 π + 0 ( ) ( ) 1 δ! Kπ SU() Antonelli, Cirigliano, Lusiani, E.P. 13 = (.9 ± 0.4 mixing ± 0.5)% + IB in the K *- to Kπ coupling 31
32 3.1.3 Phase space integrals Master formula for τ Kπν τ : ( ) = G F Γ τ Kπν τ γ m τ 5 96π 3 C K τ S EW K 0 π f+ (0) τ I K 1 + δ Kτ EM +! Kπ δ SU() Theoretical inputs : Ø I K : Phase space integral need a parametrization for the normalized form factors to fit the experimental distributions (, ( ), ( ) + 0 ) τ I K = ds F s f s f s Hadronic matrix element: Crossed channel from K πlν l ΔKπ ΔKπ K π sγ µ u 0 = ( pk pπ) + ( pk + p ) f ( s) ( pk p ) f0( s) µ π µ π s + + µ s f vector s= q = ( p scalar K + p ) 0, + () t with π, f 0, + () t = f+ (0) Use a dispersive parametrization to combine with K l3 analysis 3
33 Form factors Invariant mass spectra: constraints on FF very important for tes-ng QCD dynamics and the SM and new physics: Kπ form factors : τ à Kπν τ Jamin, Pich, Portolés 08 Boito, Escribano, Jamin 09, 10 Bernard, Boito, E.P 11 Bernard 13, Escribano, González-Solis, Jamin, Roig 14 Emilie Passemar 33
34 3.1.5 Results for phase space integrals From the results of the fit to the Belle + K l3 data : Integral result error exp theo I K I e K I K /I e 0 K I K I e K I K /I e + K Precision : I τ 0 3.4%, I τ + 3.7% K K l To be compared to the precision on I : 0.14 % K Should be improved with more precise measurements!! Emilie Passemar 34
35 3.1.6 Extraction of Result for τ Kπν τ : BR ( τ K 0 π ν ) τ = ( ± 0.008)% Belle 14 f + ( 0) = ± IK ± exp FLAG 16 V with us = 0.1 ± f 0 + ( ) = ( 7) Emilie Passemar 35
36 3.1.6 Extraction of Result for τ Kπν τ : f + ( 0) = ± IK ± exp = 0.1 ± with f + ( 0) = ( 7) FLAG 16 To be compared to results for K l3 : FLAVIAnet Kaon WG, talk by M. FLAG 16 f + ( 0) = ± = 0.41 ± = 0.38 ± exp ± theo Not competitive yet but interesting cross check of determination from K l3 and inclusive τ result Emilie Passemar 36
37 3.1.6 Extraction of Result for τ Kπν τ : f + ( 0) = ± IK ± exp = 0.1 ± with f + ( 0) = ( 7) FLAG 16 To be compared to results for K l3 : FLAVIAnet Kaon WG, talk by M. FLAG 16 = 0.38 ± exp ± theo f + ( 0) = ± = 0.41 ± Not competitive yet but interesting cross check of determination from K l3 and inclusive τ result Bernard 14 Result of fit to K l3 + τ Kπν τ and Kπ scattering data including Emilie Passemar inelasticities in the dispersive FFs f + 0 ( ) = ±
38 From Unitarity Kaon and hyperon decays K l3 decays (+ f + (0)) K l /π l decays (+ f K /f π ) Hyperon decays Flavianet Kaon WG 10 update by Moulson CKM16 τ decays τ -> s inclusive τ -> Kν absolute (+ f K ) τ branching fraction ratio τ -> Kν / τ -> πν (+ f K /f π ) Our result from Belle BR τ -> Kπν τ decays (+ f + (0), FLAG) BaBar & Belle HFAG NB: BRs measured by B factories are systema-cally smaller than previous measurements Emilie Passemar 38
39 3. from exclusive hadronic τ decays : Ø τ Kν τ / τ π ν τ decays Ø τ Kν τ decays
40 3. from τ Kν τ / τ π ν τ Γ( τ Kν [ γ] ) 1 m ± m K τ f V K us = 1+ δ Γ τ πν γ 1 m m f ± V ( [ ]) ( ) ( τ ) π π ud ( ) LD Ø δ LD : Long-distance radiative corrections δ LD = ± Ø Brs from HFAG 17 with update by A.Lusiani Ø F K / F π from lattice average: f K f π = ± FLAG 16 Ø V ud : V ud = (1) Towner & Hardy 14 = 0.36 ± σ away from unitarity Emilie Passemar 40
41 3.3 from τ Kν τ ( ) = G m 3 F τ S EW τ τ BR τ Kν γ 16π h 1 m K ± m τ f K In principle less precise than ratios Ø Inputs from HFAG 17 with update by A.Lusiani Ø F K from lattice average f K = ( ± 0.9) MeV FLAG 16 = 0.11 ± σ away from unitarity Emilie Passemar 41
42 From Unitarity Kaon and hyperon decays K l3 decays (+ f + (0)) K l /π l decays (+ f K /f π ) Hyperon decays Flavianet Kaon WG 10 update by M.Moulson τ decays τ -> s inclusive τ -> Kν absolute (+ f K ) τ branching fraction ratio τ -> Kν / τ -> πν (+ f K /f π ) Our result from Belle BR τ -> Kπν τ decays (+ f + (0), FLAG) BaBar & Belle HFAG update by A.Lusiani Emilie Passemar 4
43 4. Conclusion and Outlook
44 4.1 Conclusion Studying τ physics very interesting tests of the Standard Model e.g. Inclusive τ decays : = ± exp ± th Error dominated by experiment Potentially the more precise extraction of Antonelli, Cirigliano, Lusiani, E.P. 13 Simulated New flavour factory data from Belle data : Same central values but uncertainties rescaled assuming 40 ab -1 luminosity = ± exp ± th V = 0.11± ± us exp th Promising! Competitive with kaon physics! = 0.55 ± exp ± th 44
45 4. Outlook : Experimental challenges : strange τ Brs PDG 014: «Nineteen of the 0 B-factory branching fraction measurements are smaller than the non-b-factory values. The average normalized difference between the two sets of measurements is -1.08» (-1.41 for the 11 Belle measurements and for the 11 BaBar measurements) Supported by predictions from kaon X channel Measured modes by the B factories: Mode BaBar Belle Normalized Difference (#σ) π π + π ν τ (ex. K 0 ) +1.4 K π + π ν τ (ex. K 0 ).9 K K + π ν τ.9 K K + K ν τ 5.4 η K ν τ 1.0 φ K ν τ 1.3 Emilie Passemar
46 4. Outlook : Experimental challenges : strange τ Brs PDG 016: «We find that that BaBar and Belle tend to measure lower τ branching fractions and ratios than the other experiments. The average normalized difference between the two sets of measurements is -0.8σ (-0.8σ for the 16 Belle measurements and -0.9σ for the 11 BaBar measurements)» number of measurements number of measurements Emilie Passemar Belle standard deviations BaBar standard deviations Figure 3: Distribution of the normalized difference between the 7 B-factory measurements and non-b-factory measurements. The list includes 16 measurements of branching fractions and ratios published by the Belle collaboration and 11 by the BaBar collaboration that are used in the fit and for which non-b-factory measurements exist.
47 4. Outlook Experimental challenges : strange τ BRs: PDG 014: «Nineteen of the 0 B-factory branching fraction measurements are smaller than the non-b-factory values. The average normalized difference between the two sets of measurements is -1.08» Supported by predictions from kaon X channel measurements More precise measurements Theoretical challenges : Ø Having the hadronic uncertainties under control: OPE vs. Lattice QCD or ChPT Ø Isospin breaking Ø Electromagnetic corrections Emilie Passemar 47
48 Prospects : τ strange Brs Experimental measurements of the strange spectral functions not very precise New measurements are needed! Before B-factories With B-factories new measurements : Smaller τ K branching ratios smaller R τ smaller,s S R τ = (47) old R τ S new = (8) V = 0.14 ± ± us old exp th new = ± exp ± th
49 7. Back-up
50 summary K l3, PDG ± K l, PDG ± CKM unitarity, PDG ± τ s incl., Maltman ± 0.00 ± τ s incl., HFLAV ± τ Kν / τ πν, HFLAV ± τ average, HFLAV ± V us HFLAV Spring 017 Emilie Passemar 50
51 summary Emilie Passemar 51
52 .3 Calculation of δr τ δ R th τ R τ,ns R τ,s N C S EW δ ud V ud V us D ( D) ( D) - δ us δ R theo τ 4 m (m s τ ) Δ ( α m S ) τ but perturbatives series for L behave very badly! Δ ( α ) ( ) 3 kl S known to order O αs : transverse contribution computed from theory Gámiz, Jamin, Pich, Prades,Schwab 03, 05 longitudinal contribution divergent determined from data E. Gámiz, CKM 1
53 .4 Results = R τ,s R τ,ns V ud δ R τ,th δr τ,th determined from OPE (L+T) + phenomenology E. Gámiz, CKM 1 δ R τ,th = ( ± ) + ( 9.3 ± 3.4)m s + ( ± 0.008) J=L J=L+T, D= δ R τ,th = 0.039(30) Gamiz, Jamin, Pich, Prades, Schwab 07, Maltman 11 Input : m s m s ( GeV, MS) = 93.8 ±.4 MeV lattice average FLAG 13 Tau data : R τ,s = (8) and R τ,ns = (84) HFAG 1, update by A. Lusiani V ud : Emilie Passemar V = () Towner & Hardy 08 ud
54 .4 Results = R τ,s R τ,ns V ud δ R τ,th δ = R τ, th 0.39(30) = ± exp ± th Determination dominated by experimental uncertainties! Contrary to from K l3, dominated by uncertainties on f + (0) 3.4σ away from unitarity! Emilie Passemar
K form factors and determination of V us from decays
form factors and determination of V us from decays Emilie Passemar Los Alamos National Laboratory The 11th International Workshop on Chiral Dynamics Jefferson Laboratory, Virginia, USA August 7, 01 Outline
More informationMatthias Jamin ICREA & IFAE Universitat Autònoma de Barcelona
ICREA & IFAE Universitat Autònoma de Barcelona 1 Particles With M τ = 1.777GeV, only τ leptons decay into hadrons. Tau lifetime: τ τ = 290.6 10 15 sec Γ τ = h/τ τ = 2.27 10 3 ev. 2 Discovered 1975 by Martin
More informationRecent Progress on. Tau Lepton Physics. ν τ. A. Pich IFIC, Valencia. Euroflavour 08, IPPP, Durham September 2008
Recent Progress on Tau Lepton Physics ν e, μ W, ν, ν μ, e d θ u A. Pich IFIC, Valencia Euroflavour 08, IPPP, Durham -6 September 8 ν 5 GF m Γ( ν lνl ) = f( m / ) 3 l m r 19π EW W e e, μ ν, ν μ 3 4 f (
More informationThe Mystery of Vus from Tau decays. Swagato Banerjee
The Mystery of Vus from Tau decays Swagato Banerjee Flavor generations in the Standard Model Vij: Mixing between Weak and Mass Eigenstates 2 Unitarity of the CKM matrix 1!! 3! 1! 2! 3! 2 1 V ud = 0.97408
More informationProg. Part. Nucl. Phys. 75 (2014) 41 τ Physics. Antonio Pich. IFIC, Univ. Valencia CSIC
Prog. Part. Nucl. Phys. 75 (014) 41 Physics Antonio Pich IFIC, Univ. Valencia CSIC MASS 018: Origin of Mass at the High Energy and Intensity Frontier CP 3 -Origins, SDU, Odense, Denmark, 8 May 1 June 018
More informationThe strong coupling from hadronic tau decays
The strong coupling from hadronic tau decays Maarten Golterman (IFAE, Barcelona & San Francisco State Univ.) Phys. Rev. D84 (20): D. Boito, O. Catà, M. Golterman, M. Jamin, K. Maltman, J. Osborne, S. Peris
More informationLecture 12 Weak Decays of Hadrons
Lecture 12 Weak Decays of Hadrons π + and K + decays Semileptonic decays Hyperon decays Heavy quark decays Rare decays The Cabibbo-Kobayashi-Maskawa Matrix 1 Charged Pion Decay π + decay by annihilation
More informationV ud, V us, THE CABIBBO ANGLE, AND CKM UNITARITY Updated March 2012 by E. Blucher (Univ. of Chicago) and W.J. Marciano (BNL)
1 V ud, V us, THE CABIBBO ANGLE, AND CKM UNITARITY Updated March 2012 by E. Blucher (Univ. of Chicago) and W.J. Marciano (BNL) The Cabibbo-Kobayashi-Maskawa (CKM) [1,2] threegeneration quark mixing matrix
More informationHadronic and e e spectra, contribution to (g-2) and QCD studies
Hadronic and e e spectra, contribution to (g-2) and QCD studies Bogdan MALAESCU LPNHE Paris In collaboration with M. Davier, S. Descotes-Genon, A. Hoecker, Z. Zhang 19/03/2013 1 Outlook Introduction: the
More informationKaon Decays in the Standard Model
Kaon Decays in the Standard Model Helmut Neufeld University of Vienna 13 December 2012, Wien Review: Kaon Decays in the Standard Model V. Cirigliano, G. Ecker, H. N., A. Pich, J. Portoles, Rev. Mod. Phys.
More informationFlavour. Physics. With Other Facilities. A. Pich IFIC, Valencia
Flavour Physics With Other Facilities A. Pich IFIC, Valencia 5 th Super B Workshop Paris, 9-11 May 2007 Flavour Structure of the Standard Model u ν e c νμ t ντ,, d e s μ b τ Why 3?? Pattern of masses Flavour
More informationStandard Model Theory of Neutron Beta Decay
Standard Model Theory of Neutron Beta Decay The Utility of a Δτ n/ τ n measurement to ±0.01%! (Electroweak Radiative Corrections) William J. Marciano November 9, 2012 Santa Fe, NM Neutron Decay Master
More informationReview of Standard Tau Decays from B Factories
Review of Standard Tau Decays from B Factories Fabrizio Salvatore, RHUL Tau mass measurement Tau decays to strange particles: - Measurement of V us using τ s decays - τ KKπν τ, KKKν τ branching fractions
More informationTest of the Standard Model with Kaon decays. Barbara Sciascia LNF-INFN for the Kaon WG, FlaviaNet PhiPsi08 - LNF, 7 April 2008
Test of the Standard Model with Kaon decays Barbara Sciascia LNF-INFN for the Kaon WG, FlaviaNet PhiPsi08 - LNF, 7 April 2008 1 FlaviaNet: WG on precise SM tests in K decays B. Sciascia PhiPsi08, LNF,
More informationHadronic tau decays and the strong coupling
Hadronic tau decays and the strong coupling Diogo Boito, Maarten Golterman, Kim Maltman, San;ago Peris (also: Oscar Catà, MaBhias Jamin, Andy Mahdavi, James Osborne) Mini Workshop on Tau Physics, Cinvestav,
More informationThe Muon g 2 Challenging e+e and Tau Spectral Functions
γ The Muon g 2 Chenging e+e and Tau Spectral Functions Andreas Hoecker(*) (CERN) Moriond QCD and High Energy Interactions, La Thuile, Italy, 8 15 March, 2008 γ γ hadrons μ A. Hoecker: Muon g 2: Tau and
More informationThe Hadronic Contribution to (g 2) μ
γ The Hadronic Contribution to (g 2) μ Michel Davier Laboratoire de l Accélérateur Linéaire, Orsay Lepton Moments Workshop 2006 June 19-22, 2006, Cape Cod, USA γ γ hadrons davier@lal.in2p3.fr Lepton Moments,
More informationRecent results on CKM/CPV from Belle
Recent results on CKM/CPV from Belle Alexander Leopold for the Belle Collaboration Insitute of High Energy Physics Austrian Academy of Sciences HEPMAD 15, September 21 st 2015 A. Leopold (HEPHY) Belle
More informationConference Summary. K.K. Gan The Ohio State University. K.K. Gan Tau2000 1
Conference Summary K.K. Gan The Ohio State University K.K. Gan Tau2000 1 many interesting results can only summarize some highlights include a few interesting results not presented here apologize to those
More informationIsospin Breaking corrections to di-pion tau lepton decays
IHEP, Beijing October 13-16, 9 Iopin Breaking correction to di-pion tau lepton decay G. López Catro Cinvetav, México Collab: * A. Flore, F. Flore, G. Toledo; * M. Davier, A. Höcker, B. Malaecu, X. Mo,
More informationAntonio Pich. IFIC, CSIC Univ. Valencia.
Antonio Pich IFIC, CSIC Univ. alencia Antonio.Pich@cern.ch Fermion Masses Fermion Generations Quark Mixing Lepton Mixing Standard Model Parameters CP iolation Quarks Leptons Bosons up down electron neutrino
More informationarxiv: v1 [hep-ex] 13 Apr 2017
Experimental determination of V us from kaon decays arxiv:1704.04104v1 [hep-ex] 13 Apr 2017 INFN Laboratori Nazionali di Frascati, Italy E-mail: moulson@lnf.infn.it The status of the experimental determination
More informationLong distance weak annihilation contribution to
Long distance weak annihilation contribution to B ± (π/k) ± l + l Sergio Tostado In collaboration with: A. Guevara, G. López-Castro and P. Roig. Published in Phys. Rev. D 92, 054035 (2015). Physics Department,
More informationLepton Universality Tests with Kaons
Lepton Universality Tests with Kaons Rainer Wanke Institut für Physik, Universität Mainz for the Flavianet Working Group on Kaon Decays KAON 2007 Frascati, May 24, 2007 Rainer Wanke, Universität Mainz,
More informationHadronic Vacuum Polarization
Hadronic Vacuum Polarization Confronting Spectral Functions from e + e Annihilation and τ Decays: Consequences for the Muon Magnetic Moment γ Michel Davier ( ) LAL - Orsay γ γ Lepton Moments Cape Cod,
More informationMeasurement of the CKM Sides at the B-Factories
Measurement of the CKM Sides at the B-Factories Wolfgang Menges On behalf of the BaBar and Belle Collaborations Queen Mary, University of London, UK CKM matrix and Unitarity Triangle Semileptonic B decays
More informationCombined analysis of the decays τ K S π ν τ and
Combined analysis of the decays τ K S π ν τ and τ K ην τ Sergi Gonzàlez-Solís Grup de Física Teòrica (Departament de Física) and Institut de Física d Altes Energies (IFAE), Universitat Autònoma de Barcelona,
More informationRadiative Corrections in Free Neutron Decays
Radiative Corrections in Free Neutron Decays Chien-Yeah Seng Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn Beta Decay as a Probe of New Physics
More informationSearch for Physics Beyond the Standard Model at B Factories
Search for Physics Beyond the Standard Model at B Factories Gautier Hamel de Monchenault CEA-Saclay DAPNIA/SPP on behalf of the BABAR & BELLE Collaborations Moskow, 29 July 2006 New Physics in Flavor Sector
More informationCKM Matrix and CP Violation in Standard Model
CKM Matrix and CP Violation in Standard Model CP&Viola,on&in&Standard&Model&& Lecture&15& Shahram&Rahatlou& Fisica&delle&Par,celle&Elementari,&Anno&Accademico&2014815& http://www.roma1.infn.it/people/rahatlou/particelle/
More informationMoriond QCD La Thuile, March 14 21, Flavour physics in the LHC era. An introduction. Clara Matteuzzi. INFN and Universita Milano-Bicocca
Moriond QCD La Thuile, March 14 21, 2009 Flavour physics in the LHC era An introduction Clara Matteuzzi INFN and Universita Milano-Bicocca 1 Contents 1. The flavor structure of the Standard Model 2. Tests
More informationSébastien Descotes-Genon
α s (CIPT) Sébastien Descotes-Genon Laboratoire de Physique Théorique CNRS & Université Paris-Sud 11, 9145 Orsay, France α s workshop - February 9 211 Sébastien Descotes-Genon (LPT-Orsay) α s(cipt) 9/2/11
More informationElectroweak measurements at HERA
Electroweak measurements at HERA Alex Tapper DESY forum 1 th & 13 th September 006 Precision electroweak measurements: What can HERA contribute? Outline Introduction High Q physics at HERA Review of recent
More informationB Factories. Alan Watson University of Birmingham, UK
Towards (φ ) and γ (φ ) at the 2 3 B Factories Alan Watson University of Birmingham, UK The Unitarity Triangle Source of CP in the Standard Model 1 λ 2 /2 λ Aλ 3 (ρ iη) V CKM λ 1 λ 2 /2 Aλ 2 Αλ 3 (1 ρ
More informationElectroweak Theory: 2
Electroweak Theory: 2 Introduction QED The Fermi theory The standard model Precision tests CP violation; K and B systems Higgs physics Prospectus STIAS (January, 2011) Paul Langacker (IAS) 31 References
More informationMeasuring V ub From Exclusive Semileptonic Decays
Measuring V ub From Exclusive Semileptonic Decays Lauren Hsu Cornell University The Lake Louise Winter Institute February 00 1 The Cabibbo-Kobayashi-Maskawa Matrix This matrix describes the (SM) weak couplings
More informationRESULTS FROM B-FACTORIES
XL International Meeting on Fundamental Physics Benasque, May 12 RESULTS FROM B-FACTORIES (IFIC Valencia) τ - τ + τ - τ + B factories KEKB s=10.58 GeV e + e- Υ(4s) Υ(4s) B B z ~ c βγ τ B ~ 200µm BaBar
More informationTesting QCD with τ Decays. Antonio Pich IFIC, Univ. Valencia - CSIC
Testing QCD with τ Decays Antonio Pich IFIC, Univ. Valencia - CSIC Mainz Institute for Theoretical Physics, Johannes Gutenberg University Determination of the Fundamental Parameters in QCD, 7-1 March 016
More informationα s and the τ hadronic width
1 α s and the τ hadronic width Based on the recent article: Martin Beneke, MJ JHEP 09 (2008) 044, arxiv:0806.3156 Introduction 2 Investigations of hadronic τ decays already contributed tremendously for
More informationElectroweak Physics and Searches for New Physics at HERA
Electroweak Physics and Searches for New Physics at HERA Uwe Schneekloth DESY On behalf of the H1 and ZEUS Collaborations 14th Lomonosov Conference on Elementary Particle Physics 5.08.009 Outline Introduction
More informationUnitary Triangle Analysis: Past, Present, Future
Unitarity Triangle Analysis: Past, Present, Future INTRODUCTION: quark masses, weak couplings and CP in the Standard Model Unitary Triangle Analysis: PAST PRESENT FUTURE Dipartimento di Fisica di Roma
More informationOn the importance of Kpi scattering for Phenomenology
On the importance of Kpi scattering for Phenomenology Indiana University/Jefferson Lab. Physics with Neutral Kaon Beam at JLab Workshop Thomas Jefferson National Accelerator Facility Newport News, VA,
More informationNeutron Lifetime & CKM Unitarity: The Standard Model & Beyond
Neutron Lifetime & CKM Unitarity: The Standard Model & Beyond M.J. Ramsey-Musolf U Mass Amherst http://www.physics.umass.edu/acfi/ ACFI Neutron Lifetime Workshop, September 2014! 1 Outline I. CKM unitarity:
More informationStrong coupling from. τ lepton decays. Matthias Jamin. Strong coupling from τ decays Matthias Jamin, ICREA & IFAE, UA Barcelona
1 Strong coupling from τ lepton decays Matthias Jamin α s measurements 2 PDG 2012 For0.6 % precision atm Z need only 2 % atm τ. Hadronic τ decay rate 3 Consider the physical quantityr τ : (Braaten, Narison,
More informationBABAR Status & Physics Reach in Coming Years
BABAR Status & Physics Reach in Coming Years Gautier Hamel de Monchenault CEA-Saclay DAPNIA/SPP on behalf of the BABAR Collaboration CERN, 14 February 2006 Status of PEP-2 and BABAR PEP-2 and BABAR at
More informationSECOND PUBLIC EXAMINATION. Honour School of Physics Part C: 4 Year Course. Honour School of Physics and Philosophy Part C C4: PARTICLE PHYSICS
754 SECOND PUBLIC EXAMINATION Honour School of Physics Part C: 4 Year Course Honour School of Physics and Philosophy Part C C4: PARTICLE PHYSICS TRINITY TERM 04 Thursday, 9 June,.30 pm 5.45 pm 5 minutes
More informationV cb : experimental and theoretical highlights. Marina Artuso Syracuse University
V cb : experimental and theoretical highlights Marina Artuso Syracuse University 1 The method b q W - e, µ, ν c or u q τ Ultimate goal: a precise determination of V cb The challenge: precise evaluation
More informationBeyond Standard Model Effects in Flavour Physics: p.1
Beyond Standard Model Effects in Flavour Physics: Alakabha Datta University of Mississippi Feb 13, 2006 Beyond Standard Model Effects in Flavour Physics: p.1 OUTLINE Standard Model (SM) and its Problems.
More informationThe Future of V ub. Antonio Limosani JSPS Fellow (KEK-IPNS JAPAN) BMN BNM Tsukuba (KEK) Sep Antonio Limosani KEK Slide 1
The Future of V ub Antonio Limosani JSPS Fellow (KEK-IPNS JAPAN) 2010 2006 BMN 2006 BNM Tsukuba (KEK) Sep 13-14 2006 Antonio Limosani KEK Slide 1 Motivation Fundamental parameter in SM L SM =...+ gw µ
More informatione + e results from BaBar, status of muon (g-2) prediction and τ mass measurement at BESIII
e + e results from BaBar, status of muon (g-2) prediction and τ mass measurement at BESIII (IHEP-LAL collaboration) Liangliang WANG Outline Introduction to hadronic vacuum polarization ee hadrons results
More informationThe Cabibbo-Kobayashi-Maskawa (CKM) matrix
The Cabibbo-Kobayashi-Maskawa (CKM) matrix Charge-raising current J µ W = ( ν e ν µ ν τ )γ µ (1 γ 5 ) V = A u L Ad L e µ τ + (ū c t)γ µ (1 γ 5 )V Mismatch between weak and quark masses, and between A u,d
More informationτ Physics at B-factories.
τ Physics at B-factories. University of Oregon March, 006 B-factories are τ-factories Standard Model tests Analysis of hadronic τ decays Searches for lepton flavour violating τ decays τ physics at Υ(4S)
More informationLecture 11 Weak Decays of Hadrons
Lectre 11 Weak Decays of Hadrons M - The Cabibbo- Kobayashi*- Maskawa* Matrix (* Nobel prize 008) 1 Charged Pion Decay Charged pion lifekme τ(π + ) = τ(π ) = 6 ns Matrix element: V d M = G F f π (ν µ )
More informationRare Hadronic B Decays
XLI st Rencontres de Moriond QCD and High-Energy Hadronic Interactions La Thuile, Italy, March 18-5, 6 Rare Hadronic B Decays Jürgen Kroseberg Santa Cruz Institute for Particle Physics University of California,
More informationProbing lepton flavour violation in the Higgs sector with hadronic! decays
Probing lepton flavour violation in the Higgs sector with hadronic! decays Los Alamos National Laboratory passemar@lanl.gov LUPM & L2C, Montpellier February 13, 2014 In collaboration with : Alejandro Celis,
More informationRecent results and perspectives on pseudo-scalar mesons and form factors at BES III
Meson Physics in Low-Energy QCD Workshop on Meson Transition Form Factors Recent results and perspectives on pseudo-scalar mesons and form factors at BES III Elisabetta Prencipe Johannes Gutenberg University
More informationTau Physics. 1 Introduction. 2 Charged current universality
Departament de Física Teòrica, IFIC Universitat de València CSIC Apt. Correus 2085 E-46071 València, Spain 1 Introduction The τ lepton is a member of the third generation which decays into particles belonging
More informationarxiv: v2 [hep-lat] 20 Nov 2018
Novel Determination Using Inclusive Strange τ Decay and Lattice HVPs arxiv:1803.07228v2 [hep-lat] 20 Nov 2018 Peter Boyle, 1 Renwick James Hudspith, 2 Taku Izubuchi, 3,4 Andreas Jüttner, 5 Christoph Lehner,
More informationFlavor physics. Yuval Grossman. Cornell. Y. Grossman Flavor physics APS2009, Denver, 5/2/2009 p. 1
Flavor physics Yuval Grossman Cornell Y. Grossman Flavor physics APS2009, Denver, 5/2/2009 p. 1 Flavor at a junction Every end is a new beginning End: The Nobel to KM is a formal declaration that the CKM
More informationElementary Particles, Flavour Physics and all that...
Elementary Particles, Flavour Physics and all that... 1 Flavour Physics The term Flavour physics was coined in 1971 by Murray Gell-Mann and his student at the time, Harald Fritzsch, at a Baskin-Robbins
More informationStatus of the Cabibbo-Kobayashi-Maskawa Quark Mixing Matrix
Status of the Cabibbo-Kobayashi-Maskawa Quark Mixing Matrix Johannes-Gutenberg Universität, Mainz, Germany Electronic address: Burkhard.Renk@uni-mainz.de Summary. This review, prepared for the 2002 Review
More informationThe other window on New Physics: CP violation at the B factories
The other window on New Physics: CP violation at the B factories Gabriella Sciolla M.I.T. Outline: The physics of CP violation What is CP and why is it interesting? CPV in the B system CPV in the Standard
More informationPoS(EPS-HEP2011)179. Lattice Flavour Physics
Rome University Tor Vergata" and INFN sez. Rome Tor Vergata" E-mail: nazario.tantalo@roma.infn.it I briefly discuss recent lattice calculations of a selected list of hadronic matrix elements that play
More informationη 3π and light quark masses
η 3π and light quark masses Theoretical Division Los Alamos National Laboratory Jefferson Laboratory, Newport News November 5, 013 In collaboration with G. Colangelo, H. Leutwyler and S. Lanz (ITP-Bern)
More informationPion-Kaon interactions Workshop, JLAB Feb , From πk amplitudes to πk form factors (and back) Bachir Moussallam
Pion-Kaon interactions Workshop, JLAB Feb. 14-15, 2018 From πk amplitudes to πk form factors (and back) Bachir Moussallam Outline: Introduction ππ scalar form factor πk: J = 0 amplitude and scalar form
More informationTau Physics: Status and Prospects. George Lafferty The University of Manchester
Tau Physics: Status and Prospects George Lafferty The University of Manchester Seminar at RAL, 10 th March 2010 1 Content The tau in the Standard Model Production of taus Decays of taus in the Standard
More informationTwo photon exchange: theoretical issues
Two photon exchange: theoretical issues Peter Blunden University of Manitoba International Workshop on Positrons at JLAB March 25-27, 2009 Proton G E /G M Ratio Rosenbluth (Longitudinal-Transverse) Separation
More informationHow well do we know the Unitarity Triangle? An experimental review
SLAC-PUB-1281 hep-ex/78.3238 September 27 How well do we know the Unitarity Triangle? An experimental review Massachusetts Institute of Technology, Department of Physics, Room 26-443, 77 Massachusetts
More informationAngular Analysis of the Decay
Angular Analysis of the Decay Λ b Λ[ Nπ]l + l Philipp Böer, Thorsten Feldmann, and Danny van Dyk Naturwissenschaftlich-Technische Fakultät - Theoretische Physik 1 Universität Siegen 4th Workshop on flavour
More informationLa Fisica dei Sapori Pesanti
La Fisica dei Sapori Pesanti Lina Barbaro Galtieri Simposio in onore di Romano Bizzarri Roma, La Sapienza, 10 Febbraio 2004 Lina Galtieri Simposio in onore di Romano Bizzarri, Roma 10 Febbraio 2004 1 Heavy
More informationElectroweak interactions of quarks. Benoit Clément, Université Joseph Fourier/LPSC Grenoble
Electroweak interactions of quarks Benoit Clément, Université Joseph Fourier/LPSC Grenoble HASCO School, Göttingen, July 15-27 2012 1 PART 1 : Hadron decay, history of flavour mixing PART 2 : Oscillations
More informationParity violation. no left-handed ν$ are produced
Parity violation Wu experiment: b decay of polarized nuclei of Cobalt: Co (spin 5) decays to Ni (spin 4), electron and anti-neutrino (spin ½) Parity changes the helicity (H). Ø P-conservation assumes a
More informationResults on Tau Physics from BaBar
Results on Tau Physics from BaBar Eric Torrence University of Oregon Search for Lepton Flavor Violation Study of τ 3h 2h + ν τ (5 prong) Tau Lifetime The BaBar Experiment Integrated Luminosity (fb -1 )
More informationCP Violation Beyond the Standard Model
CP Violation Beyond the Standard Model 5th Recontres du Vietnam Hanoi August 7, 2004 Yossi Nir (Weizmann Institute of Science) Thanks to: Sandrine Laplace, Zoltan Ligeti CPV BSM 1/21 Motivation Why do
More informationRecent V ub results from CLEO
Recent V ub results from CLEO Marina Artuso Representing the CLEO Collaboration Beauty 2005, Assisi, June 20-25, 2005 1 Quark Mixing Weak interaction couples weak eigenstates, not mass eigenstates: CKM
More informationdσ/dx 1/σ tot TASSO 22 TPC/2γ 29 MKII 29 TASSO 35 CELLO 35 TASSO 43.7 AMY 55.2 DELPHI 91.2 ALEPH 91.
Department of Physics & Astronomy Experimental Particle Physics Group Kelvin Building, University of Glasgow, Glasgow, G12 8QQ, Scotland Telephone: +44 (0)141 339 8855 Fax: +44 (0)141 334 9029 GLAS{PPE/95{02
More informationStandard Model of Particle Physics
Standard Model of Particle Physics Chris Sachrajda School of Physics and Astronomy University of Southampton Southampton SO17 1BJ UK SUSSP61, St Andrews August 8th 23rd 2006 Contents 1. Spontaneous Symmetry
More informationExperimental prospects for B physics and discrete symmetries at LHC and future projects
Experimental prospects for B physics and discrete symmetries at LHC and future projects University of Warwick DISCRETE 2010 Symposium on Prospects in the Physics of Discrete Symmetries 6th December 2010
More informationMeasurements of Leptonic B Decays from BaBar
Measurements of Leptonic B Decays from BaBar Gregory Dubois-Felsmann Caltech for the BaBar collaboration ICHEP 2004 Heavy Quark Mesons and Baryons session Overview Motivations for studying leptonic B decays
More informationFlavour physics in the LHC era
Maria Laach school, september 2012 An introduction to Flavour physics in the LHC era and quest for New Physics (an experimentalist s point of view) Clara Matteuzzi INFN and Universita Milano-Bicocca 1
More informationSpectral Functions from Hadronic τ Decays and QCD
7th International Workshop on Tau Lepton Physics (Tau2), Santa Cruz, CA, -3 September, 22 Spectral Functions from Hadronic τ Decays and QCD Michel Davier Laboratoire de l Accélérateur Linéaire IN2P3/CNRS
More informationElectroweak Theory: 5
Electroweak Theory: 5 Introduction QED The Fermi theory The standard model Precision tests CP violation; K and B systems Higgs physics Prospectus STIAS (January, 2011) Paul Langacker (IAS) 162 References
More informationInclusive radiative electroweak penguin decays:
Inclusive radiative electroweak penguin decays: b sγ University of Melbourne E-mail: luis.pesantez@coepp.org.au The inclusive radiative decay b sγ is a flavor-changing-neutral-current that proceeds through
More informationQCD, Factorization, and the Soft-Collinear Effective Theory
QCD Factorization and the Soft-Collinear Effective Theory Iain W. Stewart MIT The 9th International Conference on B Physics at Hadron Machines Oct. 14-18 (Beauty 2003) Iain Stewart p.1 Outline Motiviation
More informationHadronic Effects in B -Decays
Hadronic Effects in B -Decays (from the b-quark to the B-meson) Thorsten Feldmann Neckarzimmern, March 2007 Th. Feldmann (Uni Siegen) Hadronic Effects in B -Decays March 2007 1 / 60 Outline 1 b cdū decays
More informationDanny van Dyk. B Workshop Neckarzimmern February 19th, Danny van Dyk (TU Dortmund) News on B K µ + µ 1 / 35
News on B K µ + µ Danny van Dyk B Workshop Neckarzimmern February 19th, 2010 Danny van Dyk (TU Dortmund) News on B K µ + µ 1 / 35 The Goal 15 1 10 0.8 5 0.6 C10 0-5 0.4-10 0.2-15 -15-10 -5 0 5 10 15 C
More informationIntroduction to Operator Product Expansion
Introduction to Operator Product Expansion (Effective Hamiltonians, Wilson coefficients and all that... ) Thorsten Feldmann Neckarzimmern, March 2008 Th. Feldmann (Uni Siegen) Introduction to OPE March
More informationNicolas Berger SLAC, Menlo Park, California, U.S.A.
SLAC-PUB-11414 August 25 Frascati Physics Series Vol. VVVVVV (xxxx), pp. - DAΦNE 24: Physics at meson factories Frascati, June. 7-11, 24 Selected Contribution in Plenary Session INCLUSIVE HADRONIC RESULTS
More informationSearches for Leptonic Decays of the B-meson at BaBar
Searches for Leptonic Decays of the B-meson at BaBar Stephen Jacob Sekula (MIT) on behalf of the BaBar collaboration Presented at Frontiers in Contemporary Physics III Vanderbilt University May 22-28,
More informationPrecision determinations of V cb and V ub
Precision determinations of V cb and V ub Probing weak interactions and CP violation in the quark sector with semileptonic B decays Bob Kowalewski University of Victoria April, 2004 R.V. Kowalewski 1 Outline
More informationSuperb prospects: Physics at Belle II/SuperKEKB
PANIC July 28, 2011 Superb prospects: Physics at Belle II/SuperKEKB cf G. Varner, talk 3H-1 SuperKEKB & Belle II projects 2 Primary goal: establish unitarity & complex phase of CKM matrix Kobayashi & Maskawa
More informationStandard Model of Particle Physics SS 2013
Lecture: Standard Model of Particle Physics Heidelberg SS 213 Flavour Physics I + II 1 Contents PART I Determination of the CKM Matrix CP Violation in Kaon system CP violation in the B-system PART II Search
More informationW Physics at LEP. 1. WW cross sections and W branching fractions. Corfu Summer Institute on Elementary Particle Physics, Monica Pepe Altarelli
Corfu Summer Institute on Elementary Particle Physics, 998 PROCEEDINGS Physics at LEP INFN - Laboratori Nazionali di Frascati and CERN, EP Division E-mail: Monica.Pepe.Altarelli@CERN.CH Abstract: A summary
More informationThe weak interaction Part II
The weak interaction Part II Marie-Hélène Schune Achille Stocchi LAL-Orsay IN2P3/CNRS Weak Interaction, An-Najah National University, Nablus, Palestine 1 The K -K system The CKM mechanism Measurements
More informationSUSY-related Lepton and Hadron Flavor Results from Belle Yutaro Sato
SUSY-related Lepton and Hadron Flavor Results from Belle Yutaro Sato For the Belle Collaboration (Nagoya Univ., KMI) 27 th Aug. 2015, SUSY2015 @ Lake Tahoe, USA New physics search at Belle 2 New particles
More informationSemileptonic B decays at BABAR
at (University of Oregon) representing collaboration March 4, 4 1.5 excluded area has
More informationSearch for physics beyond the SM in ep collisions at HERA
Search for physics beyond the SM in ep collisions at HERA L.Bellagamba (INFN Bologna) on behalf of the H1 and ZEUS Collaboration L.Bellagamba, Search for physics beyond the SM in ep collisions at HERA,
More informationSearching for New Physics in Heavy Flavours
Searching for New Physics in Heavy Flavours Luca Silvestrini INFN, Rome Introduction Status of flavour physics in the SM UT beyond the SM and constraints on NP CP violation in Charm Physics Conclusions
More informationLecture 11. Weak interactions
Lecture 11 Weak interactions 1962-66: Formula/on of a Unified Electroweak Theory (Glashow, Salam, Weinberg) 4 intermediate spin 1 interaction carriers ( bosons ): the photon (γ) responsible for all electromagnetic
More informationThe inclusive determination of V ub
The inclusive determination of V ub Paolo Gambino Università di Torino and INFN Torino 1 The Unitarity Triangle V =! V * ij jk ik area= measure of CPV V ud V * ub Unitarity determines several triangles
More information