Searches for Contact Interactions at HERA
|
|
|
- Tiffany Heath
- 5 years ago
- Views:
Transcription
1 Sarchs for Contact Intractions at HERA A.F.Żarncki Univrsity of Warsaw for ZEUS XVI Intrnational Workshop on Dp-Inlastic Scattring and Rlatd Subjcts 7- April 2008, Univrsity Collg London A.F.Żarncki Sarchs for Contact Intractions at HERA p./7
2 Outlin Introduction HERA running A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7
3 Outlin Introduction HERA running Nutral Currnt Dp Inlastic ± p Scattring Possibl Contact Intraction contribution A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7
4 Outlin Introduction HERA running Nutral Currnt Dp Inlastic ± p Scattring Possibl Contact Intraction contribution Contact Intraction rsults Compositnss modls Larg Extra Dimnsions Havy lptouarks Quark form factor A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7
5 Outlin Introduction HERA running Nutral Currnt Dp Inlastic ± p Scattring Possibl Contact Intraction contribution Contact Intraction rsults Compositnss modls Larg Extra Dimnsions Havy lptouarks Quark form factor Conclusions A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7
6 Introduction HERA lctron(positron)-proton collidr at DESY + / p HERA luminosity GV 820 GV 920 GV HERA I ovr 0pb collctd pr xprimnt mainly + p data Intgratd Luminosity (pb - ) Days of running A.F.Żarncki Sarchs for Contact Intractions at HERA p.3/7
7 Introduction HERA lctron(positron)-proton collidr at DESY + / 27.5 GV p 820 GV 920 GV HERA I ovr 0pb collctd pr xprimnt mainly + p data H Intgratd Luminosity / pb Status: -July-2007 lctrons positrons low E HERA-2 HERA- HERA II about 400pb pr xprimnt similar amount of p and + p data Days of running 20pb of data from low and mdium nrgy running: not considrd hr A.F.Żarncki Sarchs for Contact Intractions at HERA p.3/7
8 Introduction HERA II Spin Rotator Longitudinal Polarimtr Spin Rotator Through th mission of synchrotron radiation lctron bam at HERA bcoms transvrsly polarizd Spin Rotators installd to obtain longitudinal polarization at IP Spin Rotator Spin Rotator Transvrs Polarimtr p Spin Rotator Spin Rotator Bam Dirction A.F.Żarncki Sarchs for Contact Intractions at HERA p.4/7
9 Introduction HERA II Spin Rotator Longitudinal Polarimtr Spin Rotator Through th mission of synchrotron radiation lctron bam at HERA bcoms transvrsly polarizd Spin Rotators installd to obtain longitudinal polarization at IP Spin Rotator Spin Rotator Transvrs Polarimtr p Spin Rotator Spin Rotator Bam Dirction Luminosity /pb p Polarisation /% H Collaboration - Luminosity /pb p Polarisation /% A.F.Żarncki Sarchs for Contact Intractions at HERA p.4/7 H Collaboration Polarization masurd in ddicatd polarimtrs Avrag polarization 30-40%
10 , 0 E t/gv + Dp Inlastic ± p Scattring Main procss studid at H and ZEUS NC DIS Q 2 = GV 2 ; y = 0:56; M = 2 GV CC DIS jt XY Viw ZR Viw Kinmatic variabls: (k) ; (k 0 ) Q 2 =?(k? k 0 ) 2 Q 2 virtuality of th xchangd boson spatial rsolution λ /Q snsitivity to mass scals Λ Q ; Z; W x = 2P (k? k 0 ) (xp ) = P (k? k0 ) y k P p(p ) p rmnant A.F.Żarncki Sarchs for Contact Intractions at HERA p.5/7
11 , 0 E t/gv + Q 2 =?(k? k 0 ) 2 Dp Inlastic ± p Scattring Main procss studid at H and ZEUS NC DIS Q 2 = GV 2 ; y = 0:56; M = 2 GV CC DIS jt XY Viw ZR Viw Kinmatic variabls: virtuality of th xchangd boson (k) ; (k 0 ) ; Z; W x = Q 2 2P (k? k 0 ) fraction of proton momnta carrid by stuck uark p(p ) p rmnant = P (k? k0 ) y k P fraction of lpton nrgy transfrd in th proton rst fram (xp ) A.F.Żarncki Sarchs for Contact Intractions at HERA p.5/7
12 Dp Inlastic ± p Scattring Nutral Currnt DIS at highst Q 2 Z contribution significant Excllnt agrmnt of prcis data with Standard Modl ovr many ordrs of magnitud tst ground for SM and QCD ) 2 (pb/gv 2 dσ/dq H Nutral Currnt (p X) H HERA I+II + p (prl.) H HERA I+II - p (prl.) H 2000 PDF + p H 2000 PDF - p Contact Intractions analysis: sarch for possibl dviations at highst Q y < 0.9 P = 0 s = 39 GV Considrd data sampls: ZEUS: Q 2 > 00 GV 2 H: Q 2 > 200 GV Q 2 (GV ) A.F.Żarncki Sarchs for Contact Intractions at HERA p.6/7
13 Dp Inlastic ± p Scattring Possibl nw physics in NC DIS: For s much smallr than procss scal Λ ffctiv paramtrization: Z LQ, ~ η contact intractions (CI) LQ Effctiv Lagrangian for vctor contact intractions: L CI = η αβ (ē αγ µ α )( β γ µ β ) G G G R Z γ η αβ α,β=l,r - 4 possibl couplings for vry flavor Scalar and tnsor CI constraind byond HERA snsitivity. A.F.Żarncki Sarchs for Contact Intractions at HERA p.7/7
14 Dp Inlastic ± p Scattring Contact Intractions Contact Intractions modify tr lvl scattring amplituds M αβ : γ o Z η M αβ (Q2 ) = 2 2 gαg β Q 2 sin 2 θ W cos 2 θ W Q 2 + m 2 + η αβ Z α, β = L, R γ Z? Diffrnt modls assum diffrnt hlicity structur of nw intractions, givn by st of couplings η αβ (4 for vry flavor ) A.F.Żarncki Sarchs for Contact Intractions at HERA p.8/7
15 Dp Inlastic ± p Scattring Cross-sction formula Lading Ordr For NC ± p DIS with unpolarizd bam d 2 σ p dxdy = sx 6π (x) { + (x) { M LL 2 + M LR 2 + M RR 2 + ( y) 2 [ M RL 2 + ( y) 2 [ M LR 2 + M LL 2 + M RL 2]} M RR 2]} d 2 σ + p dxdy = sx 6π (x) { + (x) { M LR 2 + M LL 2 + M RL 2 + ( y) 2 [ M RR 2 + ( y) 2 [ M LL 2 + M LR 2 + M RR 2]} M RL 2]} p most snsitiv to η LL + p most snsitiv to η LR and η RR and η RL (=u,d) A.F.Żarncki Sarchs for Contact Intractions at HERA p.9/7
16 Dp Inlastic ± p Scattring Cross-sction formula For NC ± p DIS with Lading Ordr polarizd bam d 2 σ p dxdy = sx 6π d 2 σ + p dxdy = sx 6π (x) { P M LL 2 + P + M RR 2 + ( y) 2 [ P M LR 2 + P + M RL 2]} + (x) { P M LR 2 + P + M RL 2 + ( y) [ 2 P M LL 2 + P + M RR 2]} (x) { P + M LR 2 + P M RL 2 + ( y) 2 [ P + M LL 2 + P M RR 2]} + (x) { P + M LL 2 + P M RR 2 + ( y) [ 2 P + M LR 2 + P M RL 2]} p most snsitiv to η LL + p most snsitiv to η LR whr: P ± = ( ± P) and η RR and η RL (=u,d) P is lpton bam polarization Combining polarizd + p and p data w can st bttr constrains on M αβ A.F.Żarncki Sarchs for Contact Intractions at HERA p.9/7
17 Contact Intraction rsults Gnral modls Also rfrrd to as compositnss modls Couplings η αβ ar rlatd to th nw physics mass scal Λ by th formula: η = ε g2 CI Λ 2 whr g CI is th coupling strngth of nw intractions and ε = ±. By convntion w st g 2 CI = 4π. Modls consrving parity: η LL + η LR η RL η RR = 0 Family univrsality assumd! Modls consrving parity: Modl ηll d ηlr d ηrl d ηrr d ηll u ηlr u ηrl u ηrr u VV +η +η +η +η +η +η +η +η AA +η η η +η +η η η +η VA +η η +η η +η η +η η X +η η +η η X2 +η +η +η +η X3 +η +η +η +η X4 +η +η +η +η X5 +η +η +η +η X6 +η η +η η U +η η U2 +η +η U3 +η +η U4 +η +η U5 +η +η U6 +η η Modls violating parity: LL +η +η LR +η +η RL +η +η RR +η +η A.F.Żarncki Sarchs for Contact Intractions at HERA p./7
18 Contact Intraction rsults ZEUS Gnral modls ZEUS data compard with SM: N/N CTEQ5D N/N CTEQ5D ZEUS Contact Intractions Limits (prl.) Contact Intractions Limits (prl.) 3 4 ZEUS p VV Λ = 8.0 TV VV Λ + = 6.3 TV ZEUS (prl.) - p AA Λ = 6.7 TV AA Λ + = 6. TV Q 2 (GV 2 ) Q 2 (GV 2 ) ZEUS 95% CL limits: Λ > TV VV AA VA X X2 X3 X4 X5 X6 U U2 U3 U4 U5 U6 LL LR RL RR (prl.) ± p 330 pb - -/Λ 2 bst fit valu allowd ±/Λ 2 rang +/Λ 2 bst fit valu Λ (TV) Λ + (TV) ±/Λ 2 (TV -2 ) H 95% CL limits: Λ > TV (HERA I; Phys Ltt B568 (2003) 35-47) A.F.Żarncki Sarchs for Contact Intractions at HERA p./7
19 Contact Intraction rsults Larg Extra Dimnsions Arkani-Hamd Dimopoulos Dvali Modl If gravity propagats in 4 + δ D, ffctiv mass scal M S can b as low as TV. gravity bcoms comparabl in strngth to lctrowak intractions. Contribution of graviton (Kaluza-Klin towr) xchang to th ± p NC DIS: ffctiv contact intraction typ coupling η G = ±λ E 2 M 4 S Cross-sction dviations for p: - M S = 0.5 TV y M S + = 0.5 TV x σ/σ SM 0. whr λ is th coupling strngth and E is rlatd to th nrgy scals of hard intraction. ( s, Q 2 ) A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7 x
20 Contact Intraction rsults Larg Extra Dimnsions Arkani-Hamd Dimopoulos Dvali Modl If gravity propagats in 4 + δ D, ffctiv mass scal M S can b as low as TV. gravity bcoms comparabl in strngth to lctrowak intractions. Contribution of graviton (Kaluza-Klin towr) xchang to th ± p NC DIS: ffctiv contact intraction typ coupling η G = ±λ E 2 M 4 S ZEUS data : N/N CTEQ5D N/N CTEQ5D ZEUS Larg Extra Dimnsions Limits (prl.) Larg Extra Dimnsions Limits (prl.) ZEUS p M S = 0.9 TV M S + = 0.88 TV ZEUS (prl.) - p Q 2 (GV 2 ) whr λ is th coupling strngth and E is rlatd to th nrgy scals of hard intraction. ( s, Q 2 ) 3 4 ZEUS 95% CL limits: M S > 0.90 TV, M+ S H (HERA I): M S > 0.78 TV, M+ S Q 2 (GV 2 ) > 0.88 TV > 0.82 TV A.F.Żarncki Sarchs for Contact Intractions at HERA p.2/7
21 Contact Intraction rsults Quark form factor classical mthod to look for possibl frmion (sub)structur. If a uark has finit siz, th standard modl cross-sction is xpctd to dcras at high momntum transfr: dσ dq 2 = dσsm dq 2 [ ] 2 [ ] 2 R2 6 Q2 R2 6 Q2 whr R is th root man-suar radius of th lctrowak charg distribution in th uark. W do not considr th possibility of finit lctron siz... sam dpndnc xpctd for + p and p! A.F.Żarncki Sarchs for Contact Intractions at HERA p.3/7
22 Contact Intraction rsults Quark form factor H : ZEUS : - H Quark Radius Limit HERA I+II (435 pb ) ZEUS 2 CTEQ6D / dσ/dq p N/N CTEQ5D ZEUS (prl.) ± p R 2 = ( cm) 2 R 2 = -(0.8-6 cm) 2 dσ/dq Normalisation Uncrtainty PDF Uncrtainty -8 = 0.74 m (95% CL) R Quark Radius Limits (prl.) p 3 4 R < cm Q 2 (GV 2 ) H Prliminary 3 R < cm Q (GV ) (Hprlim-07-4 for LP 2007) A.F.Żarncki Sarchs for Contact Intractions at HERA p.4/7
23 Contact Intraction rsults High mass lptouarks ZEUS For high mass lptouarks M LQ s N/N CTEQ5D ZEUS p S L /2 M/λ=0.87 TV V L /2 M/λ=0.45 TV virtual LQ production/xchang rsults in an ffctiv CI coupling: ( ) 2 λ η CI M both s- and u-channl xchang important! λ - lptouark Yukawa coupling N/N CTEQ5D.2 Limits on Havy Lptouarks (prl.) ZEUS (prl.) - p V L M/λ=2.08 TV S L M/λ=0.73 TV Q 2 (GV 2 ) ZEUS 95% CL limits ( ): M LQ /λ LQ > TV Limits on Havy Lptouarks (prl.) 3 4 Q 2 (GV 2 ) A.F.Żarncki Sarchs for Contact Intractions at HERA p.5/7
24 Contact Intraction rsults High mass lptouarks Comparison of ZEUS limits from CI analysis with limits from LQ analysis of H and limits from othr xprimnts: - Lptouark Sarch, HERA I+II (449 pb ) - Lptouark Sarch, HERA I+II (449 pb ) λ λ - Excludd - S 0,L ( u, νd) H prlim. singl LQ - Excludd ~ + S /2,L ( d) H prlim. singl LQ H (94-00) singl LQ H (94-00) singl LQ -2 ZEUS prlim. CI D0 pair prod. L3 indir. limit -2 D0 pair prod. OPAL indir. limit M LQ / GV HERA limits comptitiv to LEP and Tvatron limits. H : A. Aktas t al., Phys. Ltt. B629 (2005) 9-9 H prl.: rsult submittd to LP 2007 (Hprlim-07-64) M LQ / GV A.F.Żarncki Sarchs for Contact Intractions at HERA p.6/7
25 Conclusions HERA II High luminosity + polarization nw window for prcis EW studis. A.F.Żarncki Sarchs for Contact Intractions at HERA p.7/7
26 Conclusions HERA II High luminosity + polarization nw window for prcis EW studis. NC DIS at high Q 2 in vry good agrmnt with SM limits on dviations from SM st in diffrnt modls Gnral Contact Intraction modls, Larg Extra Dimnsions, Quark radius, High mass lptouarks A.F.Żarncki Sarchs for Contact Intractions at HERA p.7/7
27 Conclusions HERA II High luminosity + polarization nw window for prcis EW studis. NC DIS at high Q 2 in vry good agrmnt with SM limits on dviations from SM st in diffrnt modls Gnral Contact Intraction modls, Larg Extra Dimnsions, Quark radius, High mass lptouarks HERA running finishd, but larg sampls of data collctd with polarizd lpton bams still bing analyzd. Many mor intrsting rsults xpctd. A.F.Żarncki Sarchs for Contact Intractions at HERA p.7/7
Electroweak studies and search for new phenomena at HERA
Elctrowak studis and sarch for nw phnomna at HERA A.F.Żarncki Warsaw Univrsity for ZEUS A.F.Żarncki Elctrowak studis and sarch for nw phnomna at HERA p./25 Outlin Introduction HERA and xprimnts A.F.Żarncki
arxiv: v1 [hep-ex] 21 May 2013
![arxiv: v1 [hep-ex] 21 May 2013](/thumbs/72/66807357.jpg "arxiv: v1 [hep-ex] 21 May 2013")
ELECTROWEAK RESULTS FROM HERA arxiv:5.98v [hp-x] May A.F. ŻARNECKI (on bhalf of th H and ZEUS collaborations) Faculty of Physics, Univrsity of Warsaw, Hoża 69, -68 Warszawa, Poland Nutral and chargd currnt
Limits on the effective quark radius and the contact-interaction mass scales from inclusive ep scattering at HERA. Aleksander Filip Żarnecki
38th International Conference on High Energy Physics August 5, 2016 A.F.Żarnecki (University of Warsaw) Quark radius and CI at HERA August 5, 2016 1 / 24 Limits on the effective uark radius and the contact-interaction
DIS-Parity. Search for New Physics Through Parity Violation In Deep Inelastic Electron Scattering. The Physics Case
DIS-Parity Sarch for Nw Physics Through Parity Violation In Dp Inlastic Elctron Scattring Th Physics Cas R. Arnold for th DIS-Parity Collaboration Exprimnt Plan by Stv Rock will follow 12 Jun 2003 DIS-Parity
HERA - Structure of Matter and QCD
HERA - Structur of Mattr and QCD p Contnts 5 yar running of HERA and H/ZEUS Elctrowak rsults Structur of th proton Katsuo Tokushuku (KEK, ZEUS) DESY/HERA HERA 99-7 H ZEUS HERA: (7.5GV lctron 9GVproton)
Future exotic physics at ZEUS and HERA
Future exotic physics at ZEUS and HERA Matthew Wing (UCL) Introduction Inclusive measurements of deep inelastic scattering Deviations from the Standard Model and search for substructure Search for leptoquarks
Standard Model - Electroweak Interactions. Standard Model. Outline. Weak Neutral Interactions. Electroweak Theory. Experimental Tests.
Standard Modl - Elctrowak Intractions Outlin ak Nutral Intractions Nutral Currnts (NC) Elctrowak Thory ± and Z and γ Discovry of ± Exprimntal Tsts LEP Z Boson Mass and idth Numbr of Nutrinos ± Boson ±
Diffractive Dijet Production with Leading Proton in ep Collisions at HERA
Diffractiv Dijt Production with Lading Proton in p Collisions at HERA JHEP [arxiv:150.01683] Radk Žlbčík Charls Univrsity Eric 015 Diffraction Th scattrd proton stays intact Exchang with vacuum quantum
Graduate Students Seminar Paul-Scherrer-Institut. Search for Excited Quarks
Graduat Studnts Sminar 01.10.2003 Paul-Schrrr-Institut Sarch for Excitd Quarks Jan Bckr Univrsity of Zurich Sarch for Excitd Quarks Framwork Excitd frmions and comositnss Phnomnological framwork Production
Forces. Quantum ElectroDynamics. α = = We have now:
W hav now: Forcs Considrd th gnral proprtis of forcs mdiatd by xchang (Yukawa potntial); Examind consrvation laws which ar obyd by (som) forcs. W will nxt look at thr forcs in mor dtail: Elctromagntic
HERA. Marc DAVID. On behalf of. H1 and ZEUS COLLABORATIONS. luminosity that increases steadily from year to year. The positron beam energy E e is 27.
OBSERVATION OF EVENTS AT HIGH Q 2 IN REACTIONS + p! + X AT HERA Marc DAVID CEA-Saclay,DSM/DAPNIA/SPP,99 Gif-sur-Yvtt,FRANCE On bhalf of and ZEUS COLLABORATIONS Both HERA colliding xprimnts, and ZEUS hav
IV. e + e annihilation experiments 1. Experimental methods Discovery of the Tau-Lepton 5. hadrons 6. Hadronic resonances
IV. annihilation xprimnts 1. Exprimntal mthods. 3. 4. Discovry of th Tau-Lpton 5. (γ ) µ µ (γ ) hadrons 6. Hadronic rsonancs Lit.: H.U Martyn, Tst of QED in Quantum Elctrodynamics, T.Kinoshita (d.) 1.
LEP Higgs Search Results. Chris Tully Weak Interactions and Neutrinos Workshop January 21-26, 2002
LEP Higgs Sarch Rsults Chris Tully Wak Intractions and Nutrinos Workshop January 1-6, 00 Viw of LEP Exprimnts Spontanous Symmtry Braking Higgs Fild 1-complx doublt Hyprcharg(Y) U(1) Y Symmtry Lft-Handd
Precision Standard Model Tests (at JLab)
Prcision Standard Modl Tsts (at JLab) Xiaochao Zhng Jun 21st, 2018 Th Standard Modl of Particl Physics How should w sarch for nw physics? Prcision SM tsts at Jffrson Lab Qwak, PVDIS Mollr, 12 GV PVDIS
Search for New Physics at HERA
Search for New Physics at HERA Yongdok Ri (KEK) on behalf of the H and ZEUS collaborations Introduction of HERA Model dependent search Model independent search Summary LES RENCONTRES DE PHYSIQUE DE LA
Ricerca di nuova fisica a HERA
Ricerca di nuova fisica a HERA Incontro sulla Fisica delle Alte Energie, Lecce 23-26 aprile 2003 S.Dusini, INFN Padova 1 Overview Introduction to Hera Results from HERA I Contact Interaction: Compositness,
Search for New Physics at HERA
Search for New Physics at HERA Andrea Parenti (DESY) for the H and ZEUS collaborations CIPANP 009 S. Diego, 8/05/009 Outline Introduction to HERA Model dependent searches Quark radius Excited fermions
The DELPHI experiment at the LEP accelerator at the CERN laboratory
Th DELPHI xprimnt at th LEP acclrator at th CERN laboratory Part 1. Th LEP acclrator Part 2. Th DELPHI xprimnt Part 3. Particl physics rsarch at LEP Th LEP acclrator Th study of collisions btwn lctrons
Neutrino Physics. Caren Hagner, Universität Hamburg
Nutrino Physics Carn Hagnr, Univrsität Hamburg What ar nutrinos? Nutrino mass and mixing Nutrino oscillations Nutrino bams: OPERA Oscillation of acclrator nutrinos Solar Nutrinos: BOREXINO (KamLAND ractor
fiziks Institute for NET/JRF, GATE, IIT JAM, M.Sc. Entrance, JEST, TIFR and GRE in Physics NUCLEAR AND PARTICLE PHYSICS NET/JRF (JUNE-2011)
NUCLEAR AND PARTICLE PHYSICS NET/JRF (JUNE-) 64 Q. Th radius of a 9Cu nuclus is masurd to b 4.8 - cm. (A). Th radius of a 7 Mg nuclus can b stimatd to b.86 - cm (b) 5. - cm (c).6 - cm (d) 8.6 - cm (c)
ELECTRON-MUON SCATTERING
ELECTRON-MUON SCATTERING ABSTRACT Th lctron charg is considrd to b distributd or xtndd in spac. Th diffrntial of th lctron charg is st qual to a function of lctron charg coordinats multiplid by a four-dimnsional
Effects of e ± Polarization on the Final States at HERA
Effcts of ± Polarization on th Final Stats at HERA Ringbrg Workshop Nw Trnds in HERA Physics 003 8 Sptmbr - 3 Octobr 003 Uta Stösslin (DESY Hamburg) Ringbrg Workshop 003 Uta Stösslin Effcts of ± Polarization
Γ W. (GeV) 3. τ e universality in W decays
UCR/DØ/99-22 FERMILAB-CONF-99/39-E W and Z Proprtis at th Tvatron arxiv:hp-x/99137v1 18 Oct 1999 1 Introduction John Ellison (for th CDF and DØ Collaborations) Dpartmnt of Physics, Univrsity of California,
EDM Implications for BSM Physics
EDM Implications for BSM Physics Kaori Fyto Univrsity of Massachstts, Amhrst K. Fyto, M. Ramsy-Msolf, T. Shn, PLB788(2019)52 J. d Vris, P. Drapr, K.Fyto, J. Kozaczk and D. Sthrland, 1809.10143 K. Fyto,
Neutrino Probes of Dark Energy and Dark Matter
SNOWPAC@Snowbird March 25, 2010 Nutrino Probs of Dark Enrgy and Dark Mattr Shin ichiro Ando California Institut of Tchnology Dark Enrgy and Dark Mattr 2.0 1.5 1.0 No Big Bang SN Most of th nrgy in th Univrs
CP violation and electric-dipole-moment at low energy τ production with polarized electrons
Nuclar Physics B 763 (2007) 283 292 CP violation and lctric-dipol-momnt at low nrgy τ production with polarizd lctrons J. Brnabéu a,b, G.A. Gonzálz-Sprinbrg c,j.vidal a,b, a Dpartamnt d Física Tòrica Univrsitat
Event shapes and subjet distributions at HERA
Evnt shaps and subjt distributions at HERA arxiv:hp-x/5v Dc 5 C. Glasman (on bhalf of th Collaboration) Univrsidad Autónoma d Madrid, Spain Abstract Rcnt rsults on subjt distributions from ar prsntd. h
Electroweak 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
arxiv:hep-ph/ v1 21 May 1998
hp-ph/980540 VUTH 98-6 NIKHEF 98-0 FNT/T-98/04 SPIN PHYSICS WITH SPIN-0 HADONS arxiv:hp-ph/980540v May 998. JAKOB Univrsità di Pavia and INFN, Szion di Pavia, Via Bassi 6, I-700 Pavia, Italy, -mail:jakob@pv.infn.it
The Search for Supersymmetry
Th Sarch for Suprsymmtry Introduction th Standard Modl of Particl Physics Introduction to Collidr Physics Succsss of th Standard Modl What th Standard Modl Dos Not Do Physics Byond th Standard Modl Introduction
PHYSICS 489/1489 LECTURE 7: QUANTUM ELECTRODYNAMICS
PHYSICS 489/489 LECTURE 7: QUANTUM ELECTRODYNAMICS REMINDER Problm st du today 700 in Box F TODAY: W invstigatd th Dirac quation it dscribs a rlativistic spin /2 particl implis th xistnc of antiparticl
Search for the Dark Photon at Belle for 0.27 < m A < 3 GeV/c 2
Sarch for th Dark Photon at Bll for.7 < m A < 3 GV/c Igal Jagl Univrsity of Hawai i at Mānoa for th Bll Collaboration QCD, Montpllir, 6 Juillt BELLE Igal Jagl (UH) Sarch for th Dark photon at Bll QCD /
The van der Waals interaction 1 D. E. Soper 2 University of Oregon 20 April 2012
Th van dr Waals intraction D. E. Sopr 2 Univrsity of Orgon 20 pril 202 Th van dr Waals intraction is discussd in Chaptr 5 of J. J. Sakurai, Modrn Quantum Mchanics. Hr I tak a look at it in a littl mor
Relativistic electron microscopy of hadron dynamics
Impact paramtr analysis in + N + pi+ N 1 Paul Hoyr Univrsity of Hlsinki INT Workshop Novmbr 14-18, 2016 Rlativistic lctron microscopy of hadron dynamics Gold atoms: 3D Th pion: 2D 8 ρπ(b) 6 ρ π (b) [fm
Self-interaction mass formula that relates all leptons and quarks to the electron
Slf-intraction mass formula that rlats all lptons and quarks to th lctron GERALD ROSEN (a) Dpartmnt of Physics, Drxl Univrsity Philadlphia, PA 19104, USA PACS. 12.15. Ff Quark and lpton modls spcific thoris
THE MTV EXPERIMENT FROM T-VIOLATION TO LORENTZ-VIOLATION. Jiro Murata Rikkyo University for the MTV collaboration INPC2016, Sydney, Sep 11-16, 2016
THE MTV EXPERIMENT FROM T-VIOLATION TO LORENTZ-VIOLATION Jiro Murata Rikkyo Univrsity for th MTV collaboration INPC2016 Sydny Sp 11-16 2016 Rikkyo J. Murata Y. Nakaya Y. Totsuka S. Tanaka R. Tanuma T.
TESTING A SPIN-2 MEDIATOR IN DECAYS
TESTING A SPIN- MEDIATOR IN b s DECAYS BAZENA MEIC Thortical Physics Division Rudjr Boskovic Institut, Zagrb arxiv 1801.07115 in collaboration with Svjtlana Fajfr & Monalisa Patra (IJS, jubljana Windows
DVCS and extraction of cross sections in Hall A
DVCS and xtraction of cross sctions in Hall A Eric FUCHEY Ph.D Studnt Laboratoir d Physiqu Corpusculair UMR 6533 CNRS/INP3 Unirsité Blais Pascal Clrmont Frrand Outlin Gnralizd Parton Distributions / DVCS
Outline. Thanks to Ian Blockland and Randy Sobie for these slides Lifetimes of Decaying Particles Scattering Cross Sections Fermi s Golden Rule
Outlin Thanks to Ian Blockland and andy obi for ths slids Liftims of Dcaying Particls cattring Cross ctions Frmi s Goldn ul Physics 424 Lctur 12 Pag 1 Obsrvabls want to rlat xprimntal masurmnts to thortical
Nuclear reactions The chain reaction
Nuclar ractions Th chain raction Nuclar ractions Th chain raction For powr applications want a slf-sustaind chain raction. Natural U: 0.7% of 235 U and 99.3% of 238 U Natural U: 0.7% of 235 U and 99.3%
General Search for New Phenomena in ep Scattering at HERA
Gnral Sarch for Nw Phnomna in p Scattring at HERA Von dr Fakultät für Mathmatik, Informatik und Naturwissnschaftn dr Rhinisch-Wstfälischn Tchnischn Hochschul Aachn zur Erlangung ds akadmischn Grads ins
Electroweak 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
Charm production at HERA
1 Charm roduction at HERA G.P. Hath a a H.H. Wills Physics Laboratory, Univrsity of Bristol, Bristol BS8 1TL, UK 1. INTRODUCTION Th HERA collidr circulats bams of lctrons (ositrons) and rotons at nrgis
Hadronic Structure Functions 1
Hadronic Structur Functions 1 arxiv:hp-x/0009009v1 5 Sp 2000 Martin Erdmann Institut für Exprimntll Krnphysik, Univrsität Karlsruh, Engssrstr. 7, D-76128 Karlsruh, Martin.Erdmann@dsy.d Abstract Exprimntal
E hf. hf c. 2 2 h 2 2 m v f ' f 2f ' f cos c
EXPERIMENT 9: COMPTON EFFECT Rlatd Topics Intractions of photons with lctrons, consrvation of momntum and nrgy, inlastic and lastic scattring, intraction cross sction, Compton wavlngth. Principl Whn photons
Structure Functions at Very High Q 2 From HERA
Structure Functions at Very High Q 2 From HERA Christopher M. Cormack For the H1 and ZEUS Collaborations Rutherford Appleton Laboratory, Chilton, Didcot, Oxford, OX11 0QX, United Kingdom Abstract. Measurements
Particle Physics. Dr M.A. Thomson. e + γ. 1 q 2. e - Part II, Lent Term 2004 HANDOUT II. Dr M.A. Thomson Lent 2004
Particl Physics Dr M.A. Thomson µ q 2 µ Part II, Lnt Trm 2004 HANDOUT II Dr M.A. Thomson Lnt 2004 Quantum Elctrodynamics 2 QUANTUM ELECTRODYNAMICS: is th quantum thory of th lctromagntic intraction. CLASSICAL
Eigenvalue Distributions of Quark Matrix at Finite Isospin Chemical Potential
Tim: Tusday, 5: Room: Chsapak A Eignvalu Distributions of Quark Matri at Finit Isospin Chmical Potntial Prsntr: Yuji Sasai Tsuyama National Collg of Tchnology Co-authors: Grnot Akmann, Atsushi Nakamura
Moon Moon Devi. INO.
Moon Moon Dvi. INO. Plan of Th Talk: Motivation. Nutrino intractions and cross sctions. Diffrnt Exprimnts to masur nutrino cross sctions Dscriptions. Rsults. Conclusion. Motivation: To study nuclon structur.
Electroweak constraints from HERA. 1 Introduction. Elisabetta Gallo INFN Firenze Via G. Sansone 1 I Sesto Fiorentino, ITALY
Elisabetta Gallo INFN Firenze Via G. Sansone I59 Sesto Fiorentino, ITALY Introduction The ep accelerator HERA at the laboratory DESY in Hamburg terminated activity on 3th June 7. The two experiments H
Low-energy QED tests (and what we can learn from them)
Low-nrgy QED tsts (and what w can larn from thm) (0γ) 2γ (4γ) (1γ) 3γ (5γ) Indirct Sarchs for Nw Physics at th tim of LHC Flornc, March 2010 Andrzj Czarncki U. of Albrta & CERN Outlin Gyromagntic factors
Hydrogen Atom and One Electron Ions
Hydrogn Atom and On Elctron Ions Th Schrödingr quation for this two-body problm starts out th sam as th gnral two-body Schrödingr quation. First w sparat out th motion of th cntr of mass. Th intrnal potntial
de/dx Effectively all charged particles except electrons
de/dx Lt s nxt turn our attntion to how chargd particls los nrgy in mattr To start with w ll considr only havy chargd particls lik muons, pions, protons, alphas, havy ions, Effctivly all chargd particls
Non-universal Gauge Bosons Z and the Process e + e f f
Commun. Thor. Phys. (Bijing, China) 41 (2004) pp. 419 424 c Intrnational Acadmic Publishrs ol. 41, No. 3, March 15, 2004 Non-univrsal Gaug Bosons Z and th Procss + f f YUE Chong-Xing 1 and ANG Shun-Zhi
The Relativistic Stern-Gerlach Force C. Tschalär 1. Introduction
Th Rlativistic Strn-Grlach Forc C. Tschalär. Introduction For ovr a dcad, various formulations of th Strn-Grlach (SG) forc acting on a particl with spin moving at a rlativistic vlocity in an lctromagntic
Search for µ eee at the High Intensity and Technology Frontier: The Mu3e Experiment
Sarch for µ at th High Intnsity and Tchnology Frontir: Th Mu3 Exprimnt Johns-Hopkins Workshop Hidlbrg, July 21-23, 2014 André Schöning Physikalischs Institut, Univrsität Hidlbrg 1 History of LFV Dcay xprimnts
Beam-Beam Experience in HERA Electron-Ion Collider Workshop J-Lab 04
Bam-Bam Exprinc in HERA Elctron-Ion Collidr Workshop J-Lab 04 mm Gorg H.Hoffstattr Cornll Univrsity (formrly DESY) mm m +(5$XQGHU+DPEXUJ H1 (318 GV) HERMES (7 GV) HERA ZEUS HERA-B (42 GV) PETRA 6XSHUFRQGXFWLQJ+(5$S+(5$H
Diffraction at HERA and the TEVATRON
Diffraction at HERA and th TEVATRON Nicolò Cartiglia INFN Turin Lisbon, PIC2 Rrsnting th CDF, D, H1 and ZEUS collaborations 1. Dfinitions 2. Kinmatics and Exrimntal Signaturs 3. Modls: From Rgg thory to
arxiv: v1 [hep-ex] 7 Jan 2019
![arxiv: v1 [hep-ex] 7 Jan 2019](/thumbs/93/113184173.jpg "arxiv: v1 [hep-ex] 7 Jan 2019")
Masurmnt of Longitudinal Singl-Spin Asymmtry for ± Production in Polarizd Proton+Proton Collisions at STAR arxiv:191.1734v1 [hp-x] 7 Jan 219, for th STAR collaboration Ky Laboratory of Particl Physics
Neutrinos are chargeless, nearly massless particles Most abundant particle in the Universe Interact with matter via weak nuclear force
By Wndi Wamlr Nutrinos ar charglss, narly masslss articls Most abundant articl in th Univrs Intract with mattr via wak nuclar forc Narly transarnt to mattr Only known ty of articl that can sca from th
A new idea to search for charged lepton flavor violation using a muonic atom
Journal of Physics: Confrnc Sris OPEN ACCESS A nw ida to sarch for chargd lpton flavor violation using a muonic atom To cit this articl: Jo Sato 2014 J. Phys.: Conf. Sr. 485 012036 Rlatd contnt - Sarch
SCALING OF SYNCHROTRON RADIATION WITH MULTIPOLE ORDER. J. C. Sprott
SCALING OF SYNCHROTRON RADIATION WITH MULTIPOLE ORDER J. C. Sprott PLP 821 Novmbr 1979 Plasma Studis Univrsity of Wisconsin Ths PLP Rports ar informal and prliminary and as such may contain rrors not yt
Learning Spherical Convolution for Fast Features from 360 Imagery
Larning Sphrical Convolution for Fast Faturs from 36 Imagry Anonymous Author(s) 3 4 5 6 7 8 9 3 4 5 6 7 8 9 3 4 5 6 7 8 9 3 3 3 33 34 35 In this fil w provid additional dtails to supplmnt th main papr
1.2 Faraday s law A changing magnetic field induces an electric field. Their relation is given by:
Elctromagntic Induction. Lorntz forc on moving charg Point charg moving at vlocity v, F qv B () For a sction of lctric currnt I in a thin wir dl is Idl, th forc is df Idl B () Elctromotiv forc f s any
2. Background Material
S. Blair Sptmbr 3, 003 4. Background Matrial Th rst of this cours dals with th gnration, modulation, propagation, and ction of optical radiation. As such, bic background in lctromagntics and optics nds
Department of Radiation Sciences, Uppsala University, Sweden The Svedberg Laboratory, Uppsala, Sweden. 1 Introduction
submittd to acta physica slovaca 1 6 η dcay into masurd in pd 3 Hη raction. M. Jacwicz 1, A. Kupść 2 for CELSIUS/WASA Collaboration Dpartmnt of Radiation Scincs, Uppsala Univrsity, Swdn Th Svdbrg Laboratory,
Electroweak Correction for the Study of Higgs Potential in LC
Elctrowak Corrction for th Study of Higgs Potntial in LC LAPTH-Minamitatya Collaboration LCS05 005.3.19, Stanford U. prsntd by K.Kato(Kogakuin U.) Introduction LC: high-prcision xprimnts Rquirs th sam
On the Hamiltonian of a Multi-Electron Atom
On th Hamiltonian of a Multi-Elctron Atom Austn Gronr Drxl Univrsity Philadlphia, PA Octobr 29, 2010 1 Introduction In this papr, w will xhibit th procss of achiving th Hamiltonian for an lctron gas. Making
Background: We have discussed the PIB, HO, and the energy of the RR model. In this chapter, the H-atom, and atomic orbitals.
Chaptr 7 Th Hydrogn Atom Background: W hav discussd th PIB HO and th nrgy of th RR modl. In this chaptr th H-atom and atomic orbitals. * A singl particl moving undr a cntral forc adoptd from Scott Kirby
New Muon Lifetime and the Fermi Coupling Constant G F. Kevin Giovanetti James Madison University
Nw Muon Liftim and th Frmi Coupling Constant G F Kvin Giovantti Jams Madison Univrsity HallC mting, JLAB, Aug 10, 007 a µ = g µ / Prcision FUNDAMENTAL Muon Phyiscs SYMMETRIES Prcision Masurmnts of Standard
Novel Measurements of Proton Structure at HERA
Introduction Combined Cross Sections & QCD Fits NC & CC Cross Section Measurements F L Summary Novel Measurements of Proton Structure at HERA Katie Oliver University of Oxford On behalf of the H1 and ZEUS
Neutrino Mass and Forbidden Beta Decays
NUCLEAR THEORY Vol. 35 016) ds. M. Gaidarov N. Minkov Hron Prss Sofia Nutrino Mass and Forbiddn Bta Dcays R. Dvornický 1 D. Štfánik F. Šimkovic 3 1 Dzhlpov Laboratory of Nuclar Problms JINR 141980 Dubna
HYSTERESIS AND BLEACHING OF ABSORPTION BY ELECTRONS ON HELIUM
HYSERESIS AND BLEACHING O ABSORPION BY ELECRONS ON HELIUM D. Ryvkin, 1 M.J. La, and M.I. Dykman 1 1 Dpartmnt of Physics and Astronomy, Michigan Stat Univrsity Royal Holloway, Univrsity of London Dynamics
High Energy Physics. Lecture 5 The Passage of Particles through Matter
High Enrgy Physics Lctur 5 Th Passag of Particls through Mattr 1 Introduction In prvious lcturs w hav sn xampls of tracks lft by chargd particls in passing through mattr. Such tracks provid som of th most
arxiv:hep-ph/ v1 31 May 1997
DESY 97-097 IFT 4/97 arxiv:hep-ph/9706203v1 31 May 1997 New Physics at HERA: Implications for e + e Scattering at LEP2 J. Kalinowski Deutsches Elektronen-Synchrotron DESY, D-22607 Hamburg and Institute
Classical Magnetic Dipole
Lctur 18 1 Classical Magntic Dipol In gnral, a particl of mass m and charg q (not ncssarily a point charg), w hav q g L m whr g is calld th gyromagntic ratio, which accounts for th ffcts of non-point charg
APP-IV Introduction to Astro-Particle Physics. Maarten de Jong
APP-IV Introduction to Astro-Particl Physics Maartn d Jong 1 cosmology in a nut shll Hubbl s law cosmic microwav background radiation abundancs of light lmnts (H, H, ) Hubbl s law (199) 1000 vlocity [km/s]
Electroweak and non-resonant corrections to top-pair production near threshold at NNLO
Elctrowak and non-rsonant corrctions to top-pair production nar thrshold at NNLO Martin Bnk Physik Dpartmnt T31, Jams-Franck-Straß 1, Tchnisch Univrsität Münchn, 85748 Garching, Grmany Andras Mair IPPP,
(most) due to long range e m forces i.e. via atomic collisions or due to short range nuclear collisions or through decay ( = weak interactions)
Spring 01, P67, YK Monday January 30, 01 8 Obsrvabl particl dtction ffcts ar : (most) du to long rang m forcs i.. via atomic collisions or du to short rang nuclar collisions or through dcay ( = wak intractions)
Spatial channeling of energy and momentum of energetic ions by destabilized Alfvén eigenmodes
Spatial channling of nrgy and momntum of nrgtic ions by dstabilizd Alfvén ignmods Ya.I. Kolsnichnko 1,V.V. Lutsnko 1, R.B. Whit, Yu.V. Yakovnko 1 1 Institut for Nuclar Rsarch, Kyiv, Ukrain Princton Plasma
Radiation Physics Laboratory - Complementary Exercise Set MeBiom 2016/2017
Th following qustions ar to b answrd individually. Usful information such as tabls with dtctor charactristics and graphs with th proprtis of matrials ar availabl in th cours wb sit: http://www.lip.pt/~patricia/fisicadaradiacao.
Chapter 8: Electron Configurations and Periodicity
Elctron Spin & th Pauli Exclusion Principl Chaptr 8: Elctron Configurations and Priodicity 3 quantum numbrs (n, l, ml) dfin th nrgy, siz, shap, and spatial orintation of ach atomic orbital. To xplain how
ECE507 - Plasma Physics and Applications
ECE507 - Plasma Physics and Applications Lctur 7 Prof. Jorg Rocca and Dr. Frnando Tomasl Dpartmnt of Elctrical and Computr Enginring Collisional and radiativ procsss All particls in a plasma intract with
Studies of Turbulence and Transport in Alcator C-Mod Ohmic Plasmas with Phase Contrast Imaging and Comparisons with GYRO*
Studis of Turbulnc and Transport in Ohmic Plasmas with Phas Contrast Imaging and Comparisons with GYRO* L. Lin 1, M. Porkolab 1, E.M. Edlund 1, J.C. Rost 1, M. Grnwald 1, D.R. Mikklsn 2, N. Tsujii 1 1
Notes 4: Experimental evidence for electroweak
Nots 4: Exprimntal vidnc for lctrowak hav sn how th EM and wak forcs can b arrangd in a unifid way, i.. all dscribd undr a singl combind st of mathmatics. To summaris, th main stps wr (1) Rbundl th 1 2
Antonio Pich. IFIC, CSIC Univ. Valencia.
Antonio Pich IFIC, CSIC Univ. Valncia Antonio.Pich@crn.ch Th Standard Modl A. Pich - CERN Summr Lcturs 2005 1. Constitunts & Intractions 2. Quarks 3. Gaug Invarianc 4. Quantum Chromodynamics 5. Elctrowak
Testing the Standard Model with Parity-Violating Electron Scattering Where It s Been and Where It s Going
Tsting th Standard Modl with Parity-Violating Elctron Scattring Whr It s Bn and Whr It s Going Mark Pitt * Virginia Tch Hadronic and Elctrowak Physics at MIT- Bats Rtrospctiv and Futur Prospcts Follow
arxiv: v3 [hep-ph] 8 Aug 2016
![arxiv: v3 [hep-ph] 8 Aug 2016](/thumbs/94/121714995.jpg "arxiv: v3 [hep-ph] 8 Aug 2016")
1 Sarching for lpton-flavor-violating dcay at supr charm-tau factory arxiv:160.01181v3 [hp-ph] 8 Aug 016 Zhou Hao a, Zhang Rn-You a, Han Liang a, Ma Wn-Gan a, Guo Li b, and Chn Chong a a Dpartmnt of Modrn
Addition of angular momentum
Addition of angular momntum April, 0 Oftn w nd to combin diffrnt sourcs of angular momntum to charactriz th total angular momntum of a systm, or to divid th total angular momntum into parts to valuat th
Davisson Germer experiment Announcements:
Davisson Grmr xprimnt Announcmnts: Homwork st 7 is du Wdnsday. Problm solving sssions M3-5, T3-5. Th 2 nd midtrm will b April 7 in MUEN E0046 at 7:30pm. BFFs: Davisson and Grmr. Today w will go ovr th
The Compton Effect. c 2 E 1. m e 1 E 1 = 2. c (2) + m e. E e. c 2 E (3)
PHY 19 Compton Effct 1 Th Compton Effct Introduction In this xprimnt w will study two aspcts of th intraction of photons with lctrons. Th first of ths is th Compton ffct namd aftr Arthur Holly Compton
Physics 43 HW #9 Chapter 40 Key
Pysics 43 HW #9 Captr 4 Ky Captr 4 1 Aftr many ours of dilignt rsarc, you obtain t following data on t potolctric ffct for a crtain matrial: Wavlngt of Ligt (nm) Stopping Potntial (V) 36 3 4 14 31 a) Plot
Ch. 24 Molecular Reaction Dynamics 1. Collision Theory
Ch. 4 Molcular Raction Dynamics 1. Collision Thory Lctur 16. Diffusion-Controlld Raction 3. Th Matrial Balanc Equation 4. Transition Stat Thory: Th Eyring Equation 5. Transition Stat Thory: Thrmodynamic
Electromagnetic scattering. Graduate Course Electrical Engineering (Communications) 1 st Semester, Sharif University of Technology
Elctromagntic scattring Graduat Cours Elctrical Enginring (Communications) 1 st Smstr, 1388-1389 Sharif Univrsity of Tchnology Contnts of lctur 8 Contnts of lctur 8: Scattring from small dilctric objcts
Extraction of Doping Density Distributions from C-V Curves
Extraction of Doping Dnsity Distributions from C-V Curvs Hartmut F.-W. Sadrozinski SCIPP, Univ. California Santa Cruz, Santa Cruz, CA 9564 USA 1. Connction btwn C, N, V Start with Poisson quation d V =
22/ Breakdown of the Born-Oppenheimer approximation. Selection rules for rotational-vibrational transitions. P, R branches.
Subjct Chmistry Papr No and Titl Modul No and Titl Modul Tag 8/ Physical Spctroscopy / Brakdown of th Born-Oppnhimr approximation. Slction ruls for rotational-vibrational transitions. P, R branchs. CHE_P8_M
Collisions between electrons and ions
DRAFT 1 Collisions btwn lctrons and ions Flix I. Parra Rudolf Pirls Cntr for Thortical Physics, Unirsity of Oxford, Oxford OX1 NP, UK This rsion is of 8 May 217 1. Introduction Th Fokkr-Planck collision
Addition of angular momentum
Addition of angular momntum April, 07 Oftn w nd to combin diffrnt sourcs of angular momntum to charactriz th total angular momntum of a systm, or to divid th total angular momntum into parts to valuat
Today. Wave-Matter Duality. Quantum Non-Locality. What is waving for matter waves?
Today Wav-Mattr Duality HW 7 and Exam 2 du Thurs. 8pm 0 min rcap from last lctur on QM Finish QM odds and nds from ch.4 Th Standard Modl 4 forcs of Natur Fundamntal particls of Natur Fynman diagrams EM
Davisson Germer experiment
Announcmnts: Davisson Grmr xprimnt Homwork st 5 is today. Homwork st 6 will b postd latr today. Mad a good guss about th Nobl Priz for 2013 Clinton Davisson and Lstr Grmr. Davisson won Nobl Priz in 1937.