1 / 50

Future programs for flavor physics at hadron and lepton colliders

Future programs for flavor physics at hadron and lepton colliders. Yuanning Gao Center for High Energy Physics (TUHEP) Tsinghua University. Thanks to: F. Bossi, S. Eydelman, F.Harris, N. Katayama, S.E.Mueller, Y.F.Wang, M. Yamauchi …. Plan of the talk.

arav
Download Presentation

Future programs for flavor physics at hadron and lepton colliders

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Future programs for flavor physics athadron and lepton colliders Yuanning Gao Center for High Energy Physics (TUHEP) Tsinghua University Thanks to: F. Bossi, S. Eydelman, F.Harris, N. Katayama, S.E.Mueller, Y.F.Wang, M. Yamauchi …

  2. Plan of the talk • Flavor physics now and the future • Brief overview of B physics at LHC • Programs for flavor physics at future e+e- colliders • Summary and perspectives Y.Gao / LP07

  3. Flavor physics at a glance • Focus on future programs at colliders on • s-quark: Kaon factory • c-quark and -lepton: tau-charm factory • b-quark: Super B-factory Y.Gao / LP07

  4. Flavor physics at a glance • Focus on future programs at colliders on • s-quark: Kaon factory • c-quark and -lepton: tau-charm factory • b-quark: Super B-factory • Flavor Physics (for a non-expert at least) is • Strange: GIM/CKM too good, too easy,… but true Y.Gao / LP07

  5. Universality, GIM, CKM all work fine at high precision. M. Antonelli Y.Gao / LP07

  6. Flavor physics at a glance • Focus on future programs at colliders on • s-quark: Kaon factory • c-quark and -lepton: tau-charm factory • b-quark: Super B-factory • Flavor Physics (for a non-expert at least) is • Strange: GIM/CKM too good, too easy,… but true • Charming: probing NP beyond TeV scale Y.Gao / LP07

  7. NP strongly constrained by the knowledge of flavor physics G. Isidori Y.Gao / LP07

  8. Flavor physics at a glance • Focus on future programs at colliders on • s-quark: Kaon factory • c-quark and -lepton: tau-charm factory • b-quark: Super B-factory • Flavor Physics (for a non-expert at least) is • Strange: GIM/CKM too good, too easy,… but true • Charming: probing NP beyond TeV scale • Beautiful: technology & technique, fruitful results (see previous talks at this conference) Y.Gao / LP07

  9. Why future programs (1) (A far from complete list ) • Search for hits of new physics. - Further (over) constrain the CKM matrix from tree levels (less sensitive to NP) and from loop levels (sensitive to NP) - Rare decays of charm, bottom and tau; charm EDM, kaon interferometer, FCNC decays … • Understanding the perturbative/non-perturbative nature of QCD. Improve theoretical predictions - Hadron spectroscopy (quark+gluon), form factors … - R measurements Y.Gao / LP07

  10. Why future programs (2) • Comments for the worst scenario (MFV) • The (g-2) is showing hints of new physics? Anything else from other places, say the quark sector? G. Isidori’s talk Y.Gao / LP07

  11. How future programs perform • Precision is the Lord ! - Very high luminosity (10-100) x Current machine - State of the art detectors fast DAQ tracking/vertexing; calorimetries for neutrals; PID; full angle coverage - Analysis techniques - Precise theory, theory & experiment interplay Y.Gao / LP07

  12. Brief overview of B physics at LHC • LHC has great potential for b physics • Detectors with - high precision tracking/vertexing - efficient trigger with  in the final states - efficient trigger with hadronic final states (LHCb) - good PID for /K separation (LHCb) Y.Gao / LP07

  13. Y.Gao / LP07

  14. Machine and Detector installation is underway Y.Gao / LP07

  15. T. Nakada 2013-2020(?) Super LHCb, 2x1033, 100 fb-1 Y.Gao / LP07

  16. Y.Gao / LP07

  17. + Penguin decays: Bs   Expected precision of σstat (NP= tree- penguin) ~6º from time dependent analysis with 5 years/10fb-1 Y.Gao / LP07

  18. G. Lanfranchi, Lake Louis Winter Institute, 2007 Y.Gao / LP07

  19. LHC is also a charm factory ! Dedicated LHCb D* trigger will provide 108 flavor tagged D hh per 2 fb-1. P. Spradlin, CHARM’07 Y.Gao / LP07

  20. Will new Physics show up by 2013 ? Taken from V. Vagnoni at CKM06-Nagoya Without LHCb With LHCb at 10 fb-1 Y.Gao / LP07

  21. e+-e- Colliders: Past, Present and Future 37 10 L (cm-2 s-1) SUPER FACTORIES -2 -1 L (cm sec ) 36 10 Super B-factory 35 10 ILC 34 10 KEK B PEP II DAFNE2 FACTORIES BEPCII CESR 33 10 CESRc LEP DAFNE 32 10 TRISTAN VEPP2000 PETRA DORIS 31 10 VEPP4M BEPC SPEAR COLLIDERS VEPP2M 30 10 ADONE E (GeV) 29 10 cm E (GeV) 1 10 100 1000 Y.Gao / LP07

  22. VEPP-2000 Ecm: 2m - 2.0 GeV Luminosity: 1032 cm-2s-1 Y.Gao / LP07

  23. B. Khazin, NP B (Proc. Suppl.) 162 (2006) 327 CMD-3 Detector Upgraded SND Detector Y.Gao / LP07

  24. Physics at VEPP-2000 Y.Gao / LP07

  25. The collider is in commissioning, first collisions of the beams were achieved in June. • Both detectors almost completed their upgrade and this autumn will complete assembling. First physics run may start in a year from now, autumn 2008. • see LP07 posters ! Y.Gao / LP07

  26. DAPNE-2 KLOE detector e+ e- FINUDA detector • DAFNE has reached a peak luminosity of 1.4x1032, ~1.5 fb-1/year. About 2.5 fb-1 of data delivered to KLOE by 2006. Y.Gao / LP07

  27. New interaction region will installed (Sep. 2007) for testing “crab waist”. • 1 fb-1 for SIDDHA (Kaonic atoms). • Upgrade KLOE detector. • From summer 2009 for 3-4 years, physics runs again with KLOE-2 detector at Ecm = M. 3-10 fb-1/year. • Possible lower (1.0 GeV) or higher Energy runs(?) Y.Gao / LP07

  28. Rich physics programs at the -factory - improve Vus measurement - LPV from Ke2 decays - neutral kaon interferometer (CPT and QM tests) - rare Ks decays - eta and eta’ decays - hadron cross-section measurements - …. Y.Gao / LP07

  29. BEPCII/BESIII SC RF Beams Y.Gao / LP07

  30. Y.Gao / LP07

  31. BEPCII design goal • Collider is under installation and also synchrotron mode runs. • 1/2008 Cosmic ray test for detectors • 3/2008 Detector in place • 5/2008 Start data taking Y.Gao / LP07

  32. Two rings, 93 bunches: • Luminosity • 1033 cm-2 s-1@1.89GeV • 6 1032 cm-2 s-1@1.55GeV • 6 1032 cm-2 s-1@ 2.1GeV BESIII Detector Magnet: 1 T Super conducting MDC: small cell & He gas xy=130 m sp/p = 0.5% @1GeV dE/dx=6% TOF: T = 100 ps Barrel 110 ps Endcap Muon ID: 9 layer RPC Data Acquisition: Event rate = 3 kHz Thruput ~ 50 MB/s EMCAL: CsI crystal E/E = 2.5% @1 GeV z = 0.6 cm/E Trigger: Tracks & Showers Pipelined; Latency = 6.4 ms The detector is hermetic for neutral and charged particle with excellent resolution ,PID, and large coverage. Y.Gao / LP07

  33. Physics at BESIII • Charmonium: J/, (2S), C(1S) in J/ decay, • C{0,1,2} , C(2S) and hC(1P1) in (2S) decay , (1D) and so on; • Exotics : hybrids, glueballs and other exotics • in J/ and (2S) radiative decays; • Baryons and excited baryons in J/ and (2S) hadronic decays; • Mesons and mixing of quark and gluon in J/ and (2S) decays; • Open charm factory : Absolute BR measurements of D and Ds • decays, Rare D decay, D0-D0bar mixing, CP violation,f D+, fDs , • form factors in semi-leptonic D decays, precise measurement of • CKM (Vcd, Vcs), CP violation and strong phase in D Dalitz Decays, • light spectroscopy in D0 and D+ Dalitz Decays. • Electromagnetic form factors and QCD cross section; • New Charmonium states above open charm threshold---R values ...; • tau physics near the threshold. Y.Gao / LP07

  34. Production Average Lum: L = 0.5×Peak Lum.; One year data taking time: T = 107s Nevent/year = exp L T Huge J/ and (2S) samples at BESIII Y.Gao / LP07

  35. Options to increase luminosity(1) crab crossing done at KEKB Y.Gao / LP07

  36. Taken from K. Oide, BGM, 4/07/2007 Y.Gao / LP07

  37. Options to increase luminosity(2) Standard approach Y.Gao / LP07

  38. Y.Gao / LP07

  39. http://superb.kek.jp/ Y.Gao / LP07

  40. Options to increase luminosity(3) Crab waist ( The new idea by P.Raimondi) (2) Large crossing angle, long bunches (1) Head-on, Short bunches Overlap region sx (1) and (2) have same Luminosity, but (2) has longer bunches and smaller x sz Large Piwinski angle: F = tg(q)sz/sx sz sx Y.Gao / LP07

  41. Tests with beam in Frascati DAFNE Study Fall 2007 Y.Gao / LP07

  42. SuperB design features • Two rings @ 4 and 7 GeV with ultra low emittances similar to ILC Damping Rings • Interaction Region with very strong focusing similar to Linear Colliders Final Focus • No beamstrahlung = possible beam recirculation in collider • L ~ 1036 @ (4s) • Possible option to run at tau-charm region with L ~ 1035 Y.Gao / LP07

  43. Y.Gao / LP07

  44. Y.Gao / LP07

  45. Super B-factories by ~201x • Possible open options for e+e- factories L ~ O(1035 -1036 )@ (4s) with possible extension to run at (5s) , tau-charm KEK “Standard” Frascati “Crab Waist” • LHCb upgrade to Super LHCb pp collisions at 14 TeV L ~ 2x1033 Y.Gao / LP07

  46. Taken from M. Yamauchi Super B-factory Y.Gao / LP07

  47. Future flavor programs at e+e- colliders L(cm-2s-1) Super B Factory 1036 Super Charm Factory 1035 DAPNE-2 1034 BEPCII 1033 1032 VEPP-2000 1 3 5 7 9 Ecm (GeV) Under Construction Under Consideration Y.Gao / LP07

  48. Summary and perspectives • Future flavor programs at colliders, together with fixed target experiments, will provide further precise measurements on CKM matrix elements, (very) rare decay rates which are sensitive to new physics beyond the Standard Model. • Theory – Experiment interplay is essential to maximize the potential of these (expensive) programs. • Complementary to experiments at high energy frontier, flavor physics will help us to explore features of the new physics, hopefully in near future. Y.Gao / LP07

  49. Backup Slides Y.Gao / LP07

  50. Y.Gao / LP07

More Related