Rare decays at LHCb Siim Tolk (NIKHEF, Amsterdam) on behalf of the LHCb Collaboration
|
|
- Magnus Thompson
- 5 years ago
- Views:
Transcription
1 Rare decays at LHCb Siim Tolk (NIKHEF, Amsterdam) on behalf of the LHCb Collaboration Bormio 2014
2 Rare decays at LHCb Siim Tolk (NIKHEF, Amsterdam) on behalf of the LHCb Collaboration Other talks from LHCb: Monday (11:00) LHCb overview (Ulrich Uwer) Thursday (18:40) CP violation at LHCb (Antonio Romero Vidal) Bormio 2014
3 Standard Model Rare Decays Flavour Changing Neutral Currents in meson decays: All LHCb! c! u s! d b! d b! s Covered today 3
4 Standard Model Rare Decays Tree level diagrams forbidden in SM (GIM suppression) Main contributors: W box and electroweak penguin :, Z 0 Sensitive to new particles with masses ~O(100 TeV!) 4
5 Standard Model LHCb An event recorded by LHCb 5
6 Standard Model LHCb An event recorded by LHCb Excellent precision: momentum resolution (Δ p / p ~ 0.4 % at 5 GeV/c to 0.6 % at 100 GeV/c) impact parameter resolution (20 μm for high-pt tracks) invariant mass resolution particle identification (~ 97 % for 1-3 % π μ mis-id probability)! Very efficient trigger: ~ 90 % for dimuon channels ~ 30 % for multi-body hadronic final states 6
7 Rare decays: 3 groups Electroweak penguin, Z 0 Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ μ + μ + μ - μ -, Z 0, Z0 u d s,d 7
8 Rare decays: 3 groups Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ Many observables: A CP,A UD,d(BR)/dE A CP,F L,d(BR)/dq 2 BR(B 0 s,d! µ+ µ ) Constraining many NP sensitive Wilson coefficients: C (0) 7,C(0) 8 C (0) 7,C(0) 9,C(0) C (0) 10 10,C(0) S,C(0) P 8
9 Rare decays: 3 groups Electroweak penguin, Z 0 Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ μ + μ + μ - μ -, Z 0, Z0 u d s,d 9
10 The decay B 0 s,d! µ+ µ ~10.000x! LHCb: First evidence for Bs to mumu! [PRL 110, (2013)] >25 years! 10
11 The decay B 0 s,d! µ+ µ FCNC and helicity suppressed Purely leptonic final state The SM prediction (Buras et al. [arxiv: ]) BR(B d! µ + µ )=(1.07 ± 0.10) BR(B s! µ + µ )=(3.25 ± 0.17)
12 The decay B 0 s,d! µ+ µ FCNC and helicity suppressed Purely leptonic final state Theory error budget The SM prediction (Buras et al. [arxiv: ]) BR(B d! µ + µ )=(1.07 ± 0.10) BR(B s! µ + µ )=(3.25 ± 0.17) Aµµ s/2 s 1 ( s/2 s ) 2 =(3.56 ± 0.18) 10 9 Correction due to Γs (De Bruyn et al. [PRD 86, (2012)]) 12
13 Analysis +!µ µ Data sample 3fb-1 integrated luminosity Reconstruction improved Dimuon mass signal region blinded [doi: /physrevlett ] [arxiv: ] mµ+µ [MeV/c2] The decay 0 Bs,d LHCb fb (8TeV) Bs Bd BDT 1) Identify signal like events A loose muon pair selection Separate combinatorial background with an (re-optimised) BDT Based on the geometry and kinematics Shape calibrated on the data 13 Signal like
14 The decay B 0 s,d! µ+ µ Analysis 2) Extract the signal yield [doi: /physrevlett ] [arxiv: ] Mass PDF Signal resolution taken from data Partial reconstruction and mis-id Simultaneous mass fit in 8 BDT bins 14
15 The decay B 0 s,d! µ+ µ Analysis 3) Normalize to channels with known BR s [doi: /physrevlett ] [arxiv: ] 15 [LHCB-CONF ] (fs/fd uncertainty reduced from 7.8% to 5.8%)
16 The decay B 0 s,d! µ+ µ Results LHCb results (3fb -1 ): [doi: /physrevlett ] [arxiv: ] BR(B s! µ + µ )=( (stat.) (syst)) 10 BR(B d! µ + µ )=( (stat.) (syst)) σ! 2.0σ! CMS results (25fb -1 ): BR(Bs 0! µ + µ )= BR(Bd 0! µ+ µ )= σ! 2.0σ! [doi: /PhysRevLett ] [arxiv: ] 16
17 The decay B 0 s,d! µ+ µ Results 6) Combination: B s! µ + µ First observation! B d! µ + µ PRELIMINARY COMB: [LHCb-CONF ] [CMS-PAS-BPH ] 1 D0 10.4fb 1 CDF 10fb ATLAS 4.9fb preliminary 1 1 CDF 10fb 1 LHCb 3fb SM 1 LHCb 3fb 1 CMS 25fb CMS+LHCb preliminary 0 SM B(Bs µ + µ ) [10 9 ] 1 CMS 25fb CMS+LHCb preliminary B(B µ + µ ) [10 BR(B s µ + µ )=(2.9 ± 0.7) 10 9 BR(B d µ + µ )=(3.6± ) >5σ <3σ 10 ] Measured branching ratios are compatible with the SM expectations. 17
18 The decay B 0 s,d! µ+ µ Implications Before the LHC results [D.Straub arxiv: ] After the LHC results Cartoon of plot from [D.Straub arxiv: ] 18
19 Rare decays: 3 groups Electroweak penguin, Z 0 Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ μ + μ + μ - μ -, Z 0, Z0 u d s,d 19
20 The decay B ± u! (K ± Motivation res)! K ± ± Measured inclusive BR(B ±! K ± ± ) agrees well with the SM K1(1270) + [LHCb-CONF ] K1(1400) + K1(1430) + Background subtracted K1(1580) + K1(1770) + K1(1780) + 20
21 The decay B ± u! (K ± Motivation New Physics models can affect the angular variables: In SM, photon is dominantly left-handed: res)! K ± ± Right-handed component contributes little: m s /m b 0.02 NP models (LRSM, MSSM) can have a significant righ-handed component! 21
22 The decay Observables B ± u! (K ± res) Measure the up-down asymmetry [Gronau et al, PRL88 (2002) ]! K ± ± + K [LHCb-CONF ] The plane of K + 22
23 The decay Observables B ± u! (K ± res) Measure the up-down asymmetry [Gronau et al, PRL88 (2002) ]! K ± ± + K [LHCb-CONF ] The plane of K + Directly proportional to photon polarisation for a single resonance: c R 2 c L 2 c R 2 + c L 2 B! K res L,R amplitudes Not possible to translate from AUD to photon polarisation (for inclusive measurement) 23
24 The decay Analysis strategy B ± u! (K ± res)! K ± ± Data sample: 2fb-1 of 2012 data Mixture of cuts and multivariate techniques 2 Bins of K res mass K1(1270) + K1(1400) + K1(1430) + K1(1580) + K1(1770) + K1(1780) + Background subtracted 24 [LHCb-CONF ]
25 The decay Analysis strategy B ± u! (K ± res)! K ± ± Data sample: 2fb-1 of 2012 data Mixture of cuts and multivariate techniques 2 Bins of K res mass signal combinatorial bkg missing pion partially reco. K1(1270) + K1(1400) + K1(1430) + B+, UP B-, UP K1(1580) + K1(1770) + K1(1780) + B+, DOWN B-, DOWN Background subtracted 25 [LHCb-CONF ]
26 The decay B ± u! (K ± Results res)! K ± ± The up-down asymmetry: A± UD = U ± D ± U ± +D ± Photons are polarised (strong evidence!) Parity violated. 4.6σ! [LHCb-CONF ] 26
27 The decay Results B ± u! (K ± res)! K ± ± The CP asymmetry: 27
28 The decay Results B ± u! (K ± res)! K ± ± The CP asymmetry: [LHCb-CONF ] 28
29 Summary Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ 2fb -1 analysed 1fb -1 analysed 3fb -1 analysed Non-zero A UD, with 4.6σ! No A CP seen. P 5 discrepancy of 3.7σ! Other observables agree to SM Observaion in B s channel (>5σ!) Bd channel (<3σ) Looking forward for the upgrade! 29
30 Summary Only a few B decays covered here, but many recent results: 30
31 Extras 31
32 Rare decays: 3 groups Electroweak penguin, Z 0 Radiative Semi-leptonic Leptonic B ± u! (K ± res) B 0 d! K µ + µ B 0 s,d! µ+ µ μ + μ + μ - μ -, Z 0, Z0 u d s,d 32
33 The decay B 0 d! K 0 µ + µ Motivation New Physics can alter a) Branching ratio BR(Bd 0! K 0 µ + µ ) O(10 6 ) from B factories, CDF. In agreement with SM.! b) Differential branching ratio: c) Angular distributions: 3 helicity angles ( L,, K ) d(br)/dq 2 (q - dimuon mass) 33
34 The decay B 0 d! K 0 µ + µ Differential branching ratio [JHEP 1308 (2013) 131] [ /PhysRevLett ] LHCb Good agreement with SM! 34
35 The decay B 0 d! K 0 µ + µ Motivation Angular distributions ( L,, K ) o) Differential angular distribution can be written in terms of FL and Si: 35
36 The decay B 0 d! K 0 µ + µ Motivation Angular distributions ( L,, K ) o) Differential angular distribution can be written in terms of FL and Si: Message: [S. Descotes-Genon, T. Hurth, J. Matias, J. Virto, JHEP 05 (2013) 137] [arxiv: ] Yield and angular distributions in q2, give us FL and Si F L and Si are functions of Wilson coefficients and form factors 36
37 The decay B 0 d! K 0 µ + µ Angular observables Message: Yield and angular distributions, give us F L and Si F L and Si are functions of Wilson coefficients and form factors There are combinations of F L and Si with reduced form factor uncertainties: First measurement ever! Complementary to the existing measurements [S. Descotes-Genon, T. Hurth, J. Matias, J. Virto, JHEP 05 (2013) 137] [arxiv: ] 37
38 The decay B 0 d! K 0 µ + µ Angular observables IMPROVED FOLDING! P 4,6,8 in agreement with SM BUT: P 5 shows 3.7σ local discrepancy! [JHEP 1308 (2013) 131] [ /PhysRevLett ] P 4 P 5 Integrated over the region 1.0 < q2 < 6.0 GeV 2 /c 4, the observed discrepancy is 2.5σ 38 Acceptable theory errors
39 The decay B 0 d! K 0 µ + µ Angular observables P 5! Theory explains? d(br)/dq 2 P 5 [S. Descotes-Genon, J. Matias, J.Virto, arxiv: ] Wilson coefficient: C 9 NP <0! (Z gauge boson?) 39
40 40 Mathieu Perrin-Terrin s talk on 16 th of August, 2013 in Meeting of the American Physical Society Division of Particles and Fields Santa Cruz, California!
41 Implications of the very rare decay results 41
42 Rare decays in the theory The effective Hamiltonian ( for b! s ) H eff = 4G F p 2 V tb V ts e2 16 Pi (C io 2 i + Ci 0O0 i )+h.c. Wilson coefficients (SHORT-scale effects) Operators (LONG-scale effects) 42
43 The decay B 0 d! K 0 µ + µ Analysis strategy Dataset: 2011 (1fb -1 ) Select candidates in K*( Kπ) invariant mass range! Reject dimuon resonances: BDT against combinatorial bkg. Topological info and PID Trained with B 0 K*J\Ѱ data for signal Trained with sideband data for bkg. Designed to be flat in angular acceptance Veryify the analysis on B 0 K*J\Ѱ [JHEP 1308 (2013) 131] [ /PhysRevLett ] 43
44 The decay B 0 d! K 0 µ + µ Analysis strategy [JHEP 1308 (2013) 131] [ /PhysRevLett ] Analysis done in 6 bins in q 2 from 0.1 < q 2 < 19 GeV 2 /c 4 With 883 signal candidates (1fb -1 ) Peaking backgrounds reduced to negligible level! 44
45 The decay B 0 d! K 0 µ + µ Angular observables [JHEP 1308 (2013) 131] [ /PhysRevLett ] FL : Longitudinally polarised K* fraction Lepton forward-backward asymmetry LHCb A FB =4/3 S 6 Good agreement with SM! 45
Rare decays of beauty mesons
Rare decays of beauty mesons on behalf of the LHCb collaboration - The LHCb experiment ECAL, HCAL Particle Id RICH system Muon chambers Interaction point Velo Tracking Tracking stations 2 / 25 B 0 (s)
More informationRare beauty and charm decays at LHCb
Rare beauty and charm decays at LHCb Marcin Chrząszcz 1,2 on behalf of the LHCb collaboration 1 University of Zurich, 2 Institute of Nuclear Physics, Krakow Heavy Quarks and Leptons 2014 August 25, 2014
More informationSearches for BSM Physics in Rare B-Decays in ATLAS
Searches for BSM Physics in Rare B-Decays in ATLAS Iskander Ibragimov on behalf of the ATLAS Collaboration SUSY 14 The nd International Conference on Supersymmetry and Unification of Fundamental Interactions
More informationSearch for the very rare decays B s/d + - at LHCb
Search for the very rare decays B s/d + - at LHCb Justine Serrano Centre de Physique des Particules de Marseille On behalf of the LHCb collaboration EPS-HEP, July 22 th 2011, Grenoble Bs2MuMu @ LHCb Justine
More informationLFV in Tau Decays: Results and Prospects at the LHC. Tau th International Workshop on Tau Lepton Physics Beijing September 22th, 2016
LFV in Tau Decays: Results and Prospects at the LHC Kristof De Bruyn On behalf of the ATLAS, CMS & LHCb Collaborations Tau 216 14th International Workshop on Tau Lepton Physics Beijing September 22th,
More informationNew physics searches via FCNC b s ll decays at ATLAS
New physics searches via FCNC b s ll at ATLAS Marcella (QMUL) on behalf of the ATLAS Collaboration UK Flavour Workshop Durham, UK September 5th, 2017 B physics in ATLAS very limited (wo)man power but a
More informationRare decays, radiative decays and b sll transitions at LHCb
Rare decays, radiative decays and b sll transitions at Andrew Crocombe, on behalf of the collaboration University of Warwick 19/3/18-3 rd Rencontres de Moriond - QCD and High Energy Interactions Rare decays
More informationRecent results from rare decays
Recent results from rare decays Jeroen van Tilburg (Physikalisches Institut Heidelberg) Don t worry about the number of slides: Only half of them is new Advanced topics in Particle Physics: LHC physics,
More informationStudies of rare B meson decays with the CMS detector
Studies of rare B meson decays with the detector J.Pazzini on behalf of the Collaboration Padova University & INFN - August - 3 J.Pazzini Studies of rare B meson decays with the detector (SUSY3) Introduction
More informationRadiative penguins at hadron machines. Kevin Stenson! University of Colorado!
Radiative penguins at hadron machines Kevin Stenson! University of Colorado! Introduction γ + b q u,c,t W s q b q u,c,t W + s q b q ν W W + u,c,t s q!! Radiative penguins involve b to s,d transitions with
More informationSearch for NP with B s ->m + m - and B->K *0 m + m -
Search for NP with B s ->m + m - and B->K *0 m + m - (on behalf of CMS collaboration at LHC) Sanjay Kumar Swain NISER, December 2014 Theoretical introduction Analysis of B s ->m + m - & B->K *0 m + m -
More informationElectroweak penguin measurements
Electroweak penguin measurements Marcin Chrząszcz mchrzasz@cernch Universität Zürich, Institute of Nuclear Physics, Polish Academy of Science 5 th KEK Flavour Factory Workshop October 26-27, Tokyo 2015
More informationRecent results from the LHCb
PLANCK 2017 AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY Bartłomiej Rachwał (AGH Kraków) on behalf of LHCb collaboration Recent results from the LHCb 20 th Planck Conference physics beyond the Standard Model
More informationRare b and c decays at LHCb
Rare b and c decays at Preema Pais, EPFL! on behalf of the Collaboration!! HQL 8 May 8, 8 Yamagata, Japan RARE DECAYS AT Diverse physics program studying decays of b,c,s hadrons (Non-exhaustive) sampling:
More informationRare B Meson Decays at Tevatron
Rare B Meson Decays at Tevatron Walter Hopkins CDF and DØ Collaborations Cornell University FPCP 2011 Walter Hopkins (CDF and DØ Collaborations, Cornell University)Rare B Meson Decays at Tevatron FPCP
More informationAnomalies in Flavour physics
Anomalies in Flavour physics Marcin Chrząszcz mchrzasz@cernch on behalf of the LHCb collaboration, Universität Zürich, Institute of Nuclear Physics, Polish Academy of Science Miami, 16-22 December 2015
More informationLHCP conference Bologna, June 4th June 9th, 2018 Frédéric Machefert for the LHCb collaboration
(In)direct Search of SUSY at LHCb LHCP conference Bologna, June 4th June 9th, 2018 Frédéric Machefert for the LHCb collaboration Introduction The LHCb experiment performs complementary searches for SUSY
More informationb hadron properties and decays (ATLAS)
b hadron properties and decays (ATLAS) Milind V. Purohit Univ. of South Carolina, USA for the ATLAS collaboration M. V. Purohit SM@LHC 2012 1 Outline Detector, Di muon trigger, Performance: Mass, vertex
More informationLHCb results and prospects
LHCb results and prospects M. Witek (IFJ PAN Cracow, Poland) On behalf of the LHCb Collaboration Miami 2011 Conference Fort Lauderdale, Florida 800 physicists 15 countries 54 institutes CERN LHC Large
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 informationPoS(ICHEP2012)238. Search for B 0 s µ + µ and other exclusive B decays with the ATLAS detector. Paolo Iengo
Search for B s µ + µ and other exclusive B decays with the ATLAS detector. On behalf of the ATLAS Collaboration INFN Naples, Italy E-mail: paolo.iengo@cern.ch The ATLAS experiment, collecting data in pp
More informationLHCb Overview. Barbara Storaci on behalf of the LHCb Collaboration
LHCb Overview Barbara Storaci on behalf of the LHCb Collaboration CERN Council, December 14 th, 2012 Overview Introduction Collaboration Type of physics considered Detector Detector performances Selection
More informationText. Decays of heavy flavour hadrons measured by CMS and ATLAS. M.Smizanska, Lancaster University
Text Decays of heavy flavour hadrons measured by CMS and ATLAS M. Outline Data collection and B-trigger strategies ID performance with increasing pileup Lifetimes B avg Bs, Bd Masses Λ b Bc Searches for
More informationNew results on flavor anomalies at LHCb
New results on flavor anomalies at LHCb Paula Álvarez Cartelle on behalf of the LHCb collaboration Dark Matter @ LHC Heidelberg, April 2018 The indirect approach Study processes that are suppressed or
More informationPhysics opportunities with an upgraded LHCb detector in the HL-LHC era
Physics opportunities with an upgraded LHCb detector in the HL-LHC era Sascha Stahl, CERN on behalf of the LHCb collaboration Some slides inspired by the very nice experimental and theoretical flavour
More informationLHCb results relevant to SUSY and BSM physics
LHCb results relevant to SUSY and BSM physics SUSY 2013, 31 st August 2013 Mitesh Patel (Imperial College London) On behalf of the LHCb Collaboration Introduction The interest in B physics : Virtual contributions
More informationObservation of the rare B 0 s µ + µ decay
Observation of the rare B 0 s µ + µ decay The combined analysis of CMS and LHCb data Luke Pritchett April 22, 2016 Table of Contents Theory and Overview Detectors Event selection Analysis Flavor physics
More informationMeasurements of R K and R K* at LHCb
Measurements of R K and R K* at LHCb Marie-Hélène Schune Laboratoire de l Accélérateur Linéaire, Orsay On behalf of the LHCb Collaboration B K* (K π) e + e - candidate Instant Workshop on B meson anomalies,may
More informationCP Violation in the B(s) meson system at LHCb Julian Wishahi on behalf of the LHCb collaboration
CP Violation in the B(s) meson system at Julian Wishahi on behalf of the collaboration 5th Rencontres de Moriond, Electroweak Session, 2th of March 215 CPV in Interference of Mixing/Decay interference
More informationB-physics with ATLAS and CMS
Physics at LHC-2008 Split-CROATIA, 29.9. 4.10.2008 B-physics with ATLAS and CMS Brigitte Epp, Astro- and Particle Physics, University of Innsbruck, Austria representing ATLAS / CMS collaborations B-physics
More informationSearch for very rare decays of beauty mesons into four muons
Search for very rare decays of beauty mesons into four muons Tobias Tekampe on behalf of the LHCb collaboration LHC days, Split, 19th September 216 Introduction Rare B meson decays are suitable processes
More informationPoS(Kruger 2010)048. B X s/d γ and B X s/d l + l. Martino Margoni SLAC-PUB Universita di Padova and INFN
SLAC-PUB-15491 B X s/d γ and B X s/d l + l Universita di Padova and INFN E-mail: martino.margoni@pd.infn.it Flavour Changing Neutral Current transitions B X s/d γ and B X s/d l + l provide an excellent
More informationMeasuring CP violation in. B s φφ with LHCb. Jim Libby (University of Oxford) for the LHCb collaboration. 14/12/2006 CKM 2006 Nagoya 1
Measuring CP violation in B s φφ with LHCb Jim Libby (University of Oxford) for the LHCb collaboration 4//6 CKM 6 Nagoya Outline Motivation for the study B s φφ Brief introduction to LHCb Expected signal
More informationStatus and physics at LHCb
Vienna Seminar, Particle physics and the LHC, 26.11.11 Status and physics at LHCb, Jeroen van Tilburg 1/42 Status and physics at LHCb Vienna Central European Seminar Particle Physics and the LHC Jeroen
More informationSingle top production at ATLAS and CMS. D. Lontkovskyi on behalf of the ATLAS and CMS Collaborations La Thuile, March, 2018
Single top production at ATLAS and CMS D. Lontkovskyi on behalf of the ATLAS and CMS Collaborations La Thuile, 17-24 March, 2018 1 Single top quark production at the LHC LHC is the top factory Large integrated
More informationarxiv: v2 [hep-ex] 8 Aug 2013
-PROC-13-6 May 11, 1 Studies of charmless B decays including CP violation effects arxiv:138.7v [hep-ex] 8 Aug 13 Irina Nasteva 1 Centro Brasileiro de Pesquisas Físicas Rio de Janeiro, Brazil The latest
More informationLHCb New B physics ideas
Imperial College London Beam induced splash in LHCb LHCb New B physics ideas Ulrik Egede @ Interplay of Collider and Flavour Physics, 2 nd meeting 17 March 2009 Introduction 2/21 Physics case for LHCb
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 informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland. Rare B decays at CMS
Available on CMS information server CMS CR -2017/115 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland 17 April 2017 (v4, 10 May 2017) Rare
More informationNew Physics search in penguin B-decays
New Physics search in penguin B-decays Sanjay Swain, SLAC on behalf of BABAR Collaboration 13 th -18 th Dec 2007 Miami 2007 Outline What is New Physics (NP)? b > (d, s) penguin decays Exclusive Semi-inclusive
More informationResults from B-Physics (LHCb, BELLE)
Prospects for Charged Higgs Uppsala, Sweden, 16-18 September 2014. Results from B-Physics (LHCb, BELLE) Valery Pugatch Kiev Institute for Nuclear Research, NASU On behalf of the LHCb Collaboration 1 OUTLINE
More informationSelected physics highlights from LHCb. Neville Harnew University of Oxford
Selected physics highlights from LHCb Neville Harnew University of Oxford September 6th 2014 1 Outline The LHCb detector and running conditions Selected physics highlights Focus on current 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 informationSearch for New Physics with b sll LHCb
Search for New Physics with b sll decays @ LHCb Simone Bifani University of Birmingham (UK) On behalf of the LHCb Collaboration CERN Seminar, 18th April 17 A Forward Spectrometer Optimized for beauty and
More informationTest of Lepton Flavour Universality with semitauonic decays of b-hadrons at LHCb
Test of Lepton Flavour Universality with semitauonic decays of b-hadrons at LHCb Anna Lupato on behalf of the LHCb collaboration University of Padova & INFN XIIIth International Conference on Heavy Quarks
More informationHeavy Flavour Physics at the LHC. Lessons from the first phase of the LHC DESY 27 September 2012
Heavy Flavour Physics at the LHC University of Warwick and CERN Lessons from the first phase of the LHC DESY 27 September 2012 1 Outline Heavy flavour production at the LHC The LHCb experiment Selected
More informationLHCb: first results and prospects for the run
Journal of Physics: Conference Series : first results and prospects for the 1-11 run To cite this article: J P Palacios and the Lhcb Collaboration 1 J. Phys.: Conf. Ser. 9 1 View the article online for
More informationResults on top physics by CMS
EPJ Web of Conferences 95, 04069 (2015) DOI: 10.1051/ epjconf/ 20159504069 C Owned by the authors, published by EDP Sciences, 2015 Results on top physics by CMS Silvano Tosi 1,2,a, on behalf of the CMS
More informationCharmless b-meson and b-baryon decays at LHCb. Adam Morris
Charmless b-meson and b-baryon decays at Adam Morris University of Edinburgh on behalf of the Collaboration 13 th International Conference on Heavy Quarks and Leptons 6 th May 16 A. Morris (Edinburgh Charmless
More informationPerspectives in B Physics: Results from LHCb
Pheno 2017 Symposium Pittsburgh, May 8 th, 2017 Perspectives in B Physics: Results from LHCb Ulrich Uwer Heidelberg University on behalf of the LHCb Collaboration Outline: b s Introduction Unitarity Triangle
More informationNew Physics or hadronic corrections
New Physics or hadronic corrections in the B K μ + μ decay? Institute for Research in Fundamental Sciences (IPM) In collaboration with V. Chobanova, T. Hurth, N. Mahmoudi and D. Martinez Santos based on
More informationRare heavy flavor decays at ATLAS & CMS
Rare heavy flavor decays at ATLAS & CMS A. Starodumov a a ETH, 8093 Zurich, Switzerland Two general purpose experiments, ATLAS and CMS, in addition to their main search/discovery program will perform a
More informationPhysics and recent results from LHCb
Physics and recent results from LHCb G. Passaleva On behalf of the LHCb Collabora;on May 31, 2012 KRAKOW, 31 May - 5 June 2012 Outline The LHCb detector Physics at LHCb A Selec;on of results: «Rare decays:
More informationMeasurements of the phase φ s at LHCb
Measurements of the phase φ s at LHCb V. Batozskaya 1 on behalf of LHCb collaboration 1 National Centre for Nuclear Research, Warsaw, Poland XXIII Cracow Epiphany Conference 9-12 January 2017 V. Batozskaya
More informationOverview of LHCb Experiment
Overview of Physics @ LHCb Experiment Yuanning Gao, Tsinghua University Representing the LHCb Collaboration Detector performance CKM triangles Other topics (selected) Conclusions A very selective review!
More informationPANIC August 28, Katharina Müller on behalf of the LHCb collaboration
Measurements with electroweak bosons at LHCb PANIC August 28, 2014 on behalf of the LHCb collaboration Outline LHCb detector Measurements with electroweak bosons Motivation Z production Z plus jets, Z
More informationFirst two sided limit on BR(B s µ + µ - ) Matthew Herndon, University of Wisconsin Madison SUSY M. Herndon, SUSY
First two sided limit on BR(B s µ + µ - ) Matthew Herndon, University of Wisconsin Madison SUSY 2011 M. Herndon, SUSY 2011 1 B s(d) µ + µ - Beyond the SM! Indirect searches for new physics! Look at processes
More informationRecent Results on Radiative and Electroweak Penguin B Decays at Belle. Akimasa Ishikawa (Tohoku University)
Recent Results on Radiative and Electroweak Penguin B Decays at Belle Akimasa Ishikawa (Tohoku University) Introduction Loop processes are sensitive to physics Beyond the Standard Model (BSM) since unobserved
More informationMeasurement of the. Maren Ugland. Bergen group meeting
Measurement of the B µµ BF s Maren Ugland Bergen group meeting - 25.11.2009 Introduction Neutral B-meson decays to two leptons are very sensitive to new physics. Since B s 0 l + l - involves a flavor changing
More informationLHCb Semileptonic Asymmetry
CERN E-mail: mika.vesterinen@cern.ch A recent measurement of the CP violating flavour specific asymmetry in B s decays, a s sl, is presented. This measurement is based on a data sample corresponding to
More informationElectroweak Measurements at LHCb!
Electroweak Measurements at LHCb! Simone Bifani University of Birmingham (UK) on behalf of the LHCb collaboration LHCb workshop on quantum interference effects, QCD measurements and generator tuning CERN,
More informationLHCb Physics and prospects. Stefano Perazzini On behalf of LHCb Collabora4on MENU nd June 2010
LHCb Physics and 2010-11 prospects Stefano Perazzini On behalf of LHCb Collabora4on MENU2010 2 nd June 2010 Physics: OUTLINE Flavor physics and CPV in the quark sector Search for New Physics The LHCb Experiment
More informationHadron Spectroscopy at LHCb. Hadron Spectroscopy. Results from LHCb. Lucio Anderlini (INFN Firenze) on behalf of the LHCb Collaboration
Hadron Spectroscopy Results from LHCb Lucio Anderlini on behalf of the LHCb Collaboration 1 Spectroscopy: no longer stamp collection In the last 15 years many new states not fitting the expectations for
More informationB the Tevatron
B Physics @ the Tevatron Stephanie Hansmann-Menzemer Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg DESY, 9 th of November 7 xxx p.1/1 Tevatron p p collisions at s = 1.96 TeV observed by
More informationEarly physics with the LHCb detector
XXVIII PHYSICS IN COLLISION - Perugia, Italy, June, 25-28, 2008 Early physics with the LHCb detector Dirk Wiedner CERN for the LHCb collaboration 27 June 2008 Dirk Wiedner at PIC2008 Perugia 1 Outline
More informationSearches for BSM Physics in Rare B-decays at CMS
Searches for SM Physics in Rare -decays at CMS Martino Margoni Universita` di Padova and INFN Motivation μμ K(*)μμ on behalf of the CMS Collaboration Constraints on New Physics 1 Motivation 2 Rare decays:
More informationRelative branching ratio measurements of charmless B ± decays to three hadrons
LHCb-CONF-011-059 November 10, 011 Relative branching ratio measurements of charmless B ± decays to three hadrons The LHCb Collaboration 1 LHCb-CONF-011-059 10/11/011 Abstract With an integrated luminosity
More informationMeasurement of t-channel single top quark production in pp collisions
Measurement of t-channel single top quark production in pp collisions (on behalf of the CMS collaboration) INFN-Napoli & Università della Basilicata E-mail: Francesco.Fabozzi@cern.ch Measurements of t-channel
More informationThe LHCb Experiment: First Results and Prospects. Mitesh Patel (Imperial College London) The University of Birmingham, 4 th May 2011
The LHCb Experiment: First Results and Prospects Mitesh Patel (Imperial College London) The University of Birmingham, 4 th May 2011 Outline An extended Higgs sector? (B d µ + µ and B s µ + µ - ) New CP
More informationCDF recent results Paolo Mastrandrea (INFN Roma) on behalf of the CDF Collaboration
CDF recent results Paolo Mastrandrea (INFN Roma) on behalf of the CDF Collaboration Società Italiana di Fisica - XCVII Congresso Nazionale - L'Aquila, 26-30 Settembre, 2011 SIF 2011, L'Aquila 26-30 September
More informationPoS(EPS-HEP2015)309. Electroweak Physics at LHCb
European Organisation for Nuclear Research (CERN), Switzerland E-mail: william.barter@cern.ch LHCb s unique forward acceptance allows for complementary measurements of electroweak boson production to those
More informationCP Violation Studies at DØ
CP Violation Studies at DØ Bd Bs Bd Bs Rick Van Kooten Indiana University For the DØ Collaboration LHCP 13 Barcelona, Spain 13 18 May 13? CP Violation Three kinds: In mixing: Mass eigenstates in mesonic
More informationThe Λ b 0 baryon at LHCb
The Λ b 0 baryon at LHCb UNIVERSITY OF BIRMINGHAM SCHOOL OF PHYSICS AND ASTRONOMY SEMINAR 21/10/15 Peter Griffith University of Birmingham, UK 1 Contents B-physics at the LHC Heavy baryons in B-physics
More informationPoS(FPCP2009)013. Fabrizio Scuri I.N.F.N. - Sezione di Pisa - Italy
SLAC-PUB-15615 B µµ and B τν Decays I.N.F.N. - Sezione di Pisa - Italy E-mail: fabrizio.scuri@pi.infn.it on behalf of the BaBar, Belle, CDF and D0 Collaborations An overview of the most recent experimental
More informationCP violation in B h h
CP violation in B h h - for the LHCb collaboration CNRS/IN2P3 - Laboratoire de Physique Corpusculaire de Clermont Ferrand Standard Model @ LHC - Copenhagen, 13 April 2012 Introduction Direct CP asymmetry
More informationRare Decays at the Tevatron
Rare Decays at the Tevatron Sinéad M. Farrington University of Liverpool for the CDF and D0 Collaborations Beauty 05 21 st June 2005 Outline Overall motivations 0 B d,s µ + µ Motivation CDF and D0 methods
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 informationRadiative decays: The photon polarization in b s γ penguin transitions
Radiative decays: The photon polarization in b s γ penguin transitions from Bs φγ at LHCb Mostafa HOBALLAH 1 Introduction Quarks form 3 isospin doublets: The CKM matrix: It gives us the strength of the
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 informationHQL Virginia Tech. Bob Hirosky for the D0 Collaboration. Bob Hirosky, UNIVERSITY of VIRGINIA. 26May, 2016
Bs CP-odd lifetime in Bs J/ψf0 and Afb for baryons at D0 2016 Virginia Tech Bob Hirosky for the D0 Collaboration 1 Tevatron Data D0 continues a rich physics program analyzing ~10fb-1 of recorded data from
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 informationLHCb status. Marta Calvi. for the LHCb Collaboration. 103 rd LHCC meeting University Milano-Bicocca and INFN
LHCb status 103 rd LHCC meeting 22.09.2010 Marta Calvi University Milano-Bicocca and INFN for the LHCb Collaboration Data taking 3.2 pb -1 on tape eff ~91% Stable data taking, high efficiency in all systems,
More informationLHCb Discovery potential for New Physics
Beam induced splash in LHCb Imperial College London LHCb Discovery potential for New Physics Introduction Physics with LHCb Flavour physics can provide unique input on the type of New Physics If we express
More informationMeasurement of Фs, ΔΓs and Lifetime in Bs J/ψ Φ at ATLAS and CMS
Measurement of Фs, ΔΓs and Lifetime in Bs J/ψ Φ at ATLAS and CMS Claudio Heller Excellence Cluster Universe LMU München For the ATLAS and CMS Collaborations Beauty 2013 14th International Conference on
More informationCP Violation in the B system
CP Violation in the B system Outline: Mixing induced CPV and B s mixing phase s Search for CPV in B s mixing Direct CPV in B DK and CKM phase Direct CPV in charmless B decays new Ulrich Uwer Heidelberg
More informationB PROPERTIES, LIFETIMES, AND B c DECAYS AT LHCb
MIRCO DORIGO (CERN and INFN-TS on behalf of the LHCb collaboration B PROPERTIES, LIFETIMES, AND B c DECAYS AT LHCb BEAUTY 28 - LA BIODOLA, MAY 6 2 28 CONTENTS 2 B properties: focus on Bs lifetime. For
More informationLatest results on b- physics from the ATLAS and CMS experiments. E. Pasqualucci (INFN Roma) On behalf of the ATLAS and CMS Collaborations
Latest results on b- physics from the ATLAS and CMS experiments E. Pasqualucci (INFN Roma) On behalf of the ATLAS and CMS Collaborations Latest ATLAS and CMS results Rare and semi- rare B 0 (s) decays
More informationMeasurement of CP violation in B J/ψK 0 S. decays. Frank Meier TU Dortmund. XXIX Rencontres de Physique de la Vallée d Aoste March 1 7, 2015
Measurement of CP violation in B J/ψK S decays at LHCb Frank Meier TU Dortmund on behalf of the LHCb Collaboration XXIX Rencontres de Physique de la Vallée d Aoste March 1 7, 215 CP violation in the SM
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 informationRecent results from the LHCb experiment
Recent results from the LHCb experiment University of Cincinnati On behalf of the LHCb collaboration Brief intro to LHCb The Large Hadron Collider (LHC) proton-proton collisions NCTS Wksp. DM 2017, Shoufeng,
More informationSearch for exotic charmonium states
Search for exotic charmonium states on behalf of the BABAR and BELLE Collaborations August 25th, 2014 (*), Forschungszentrum Jülich (Germany) (Germany) 1 (*) Previously addressed at JGU University of Mainz
More informationRare Decays and Flavour Anomalies
Rare Decays and Flavour Anomalies Roger Forty (CERN) Experimental review on behalf of the LHCb Collaboration also including results from ATLAS, BaBar, Belle and CMS 1. The LHCb experiment 2. Rare Decays
More informationCP violation and rare decays at LHCb. Jibo HE (UCAS), for the LHCb collaboration Presented at CLHCP PKU
CP violation and rare decays at LHCb Jibo HE (UCAS), for the LHCb collaboration Presented at CLHCP 2016 @ PKU Beauty/charm production Large production cross-section @ 7 TeV Minibias ~60 mb Charm ~6 mb
More informationFirst two sided limit on BR(B s μ + μ - ) Matthew Herndon, University of Wisconsin Madison SUSY M. Herndon, SUSY
First two sided limit on BR(B s μ + μ - ) Matthew Herndon, University of Wisconsin Madison SUSY 2011 M. Herndon, SUSY 2011 1 B s(d) μ + μ - Beyond the SM Indirect searches for new physics Look at processes
More informationSearch for B (s,d) μμ in LHCb
Search for B (s,d) μμ in LHCb Diego artinez Santos (CERN) (on behalf of the LHCb Collaboration) CERN-PH-EP-011-09, submitted to PLB http://arxiv.org/abs/1103.465 1 Outline Observables: Branching Ratios
More informationRecent results from LHCb. A.Hicheur (UFRJ, Brazil) On behalf of the LHCb collaboration SILAFAE 2016, Guatemala November 14-18, 2016
Recent results from LHCb A.Hicheur (UFRJ, Brazil) On behalf of the LHCb collaboration SILAFAE 2016, Guatemala November 14-18, 2016 Outline Physics program LHCb experiment Highlights of recent results Mostly
More informationSearch for New Physics with leptonic decays of B 0 s and B 0 mesons
University of Ljubljana Faculty of Mathematics and Physics Department of Physics Seminar I Search for New Physics with leptonic decays of B s and B mesons Author: Veronika Vodeb Advisor: dr. Anže Zupanc
More informationTop Quark Production at the LHC. Masato Aoki (Nagoya University, Japan) For the ATLAS, CMS Collaborations
Top Quark Production at the LHC Masato Aoki (Nagoya University, Japan) For the ATLAS, CMS Collaborations Phys. Rev. D 83 (2011) 091503, Phys. Rev. D 82 (2010) 054018, Phys. Rev. D 81 (2010) 054028, Comput.
More informationRencontres de Moriond - EW Interactions and Unified Theories La Thuile, March 14-21, 2015
Rencontres de Moriond - EW Interactions and Unified Theories La Thuile, March 14-21, 2015 Eli Ben-Haïm LPNHE-IN2P3- Université Pierre et Marie Curie (Paris) On behalf of the BELLE and BABAR collaborations
More informationCP violation in charmless hadronic B decays
CP violation in charmless hadronic B decays Wenbin Qian University of Warwick UK Flavour 2017, Durham Charmless b decays No charm quark in final state particles ~ 1% of b decay Large CPV from mixing and
More information