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Atami Summary

Atami Summary. 熱海温泉. Atami(onsen).

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Atami Summary

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  1. Atami Summary 熱海温泉 Atami(onsen) Tokugawa Ieyasu (1543-1616), Japan’s most famous shogun who brought the whole country under his rule, liked to visit Atami. He was so impressed by the quality of the hot spring that he ordered barrels of water to be hauled back to Edo (present day Tokyo) at immense effort and expense.

  2. A slide from Alexey Drutskoy

  3. Why three generations ? String Theory ? (e.g. P.Binetruy et.al., hep-th/0509157; J.Phys G.32: 129 (2006)); Larger Symmetry Groups ? (see Kubo’s talk) Experiments with quarks or heavy leptons? This question is probably too hard – more tractable questions….. Fundamental Questions in Flavor Physics Are there New Physics Phases and New sources of CP Violation Beyond the SM ? Experiments: bs CPV, compare CPV angles from tree and loops Are there new operators with quarks enhanced by New Physics ? Experiments: AFB(BK*l l), BK  rates and asymmetries Are there right-handed currents ? Experiments: bs  CPV, B->VPγ or BV V triple-product asymmetries Are there new flavor changing neutral currents ? Experiments: bs ννbar, D-Dbar CPV+mixing+rare, τγ These questions can be answered at a Super B Factory.

  4. New Physics Flavor Problem Yuval Grossman, Tim Gershon New Physics (SUSY, extra dimensions etc….) has new particles with new couplings and phases These new particles induce FCNC. If there is no non-trivial flavor structure, current results would suggest the new physics scale is 10000 TeV. (not accessible at LHC) If there is new physics at the 1 TeV (0.1 TeV) energy scale, then it has a highly non-trivial flavor structure. Minimal flavor violation (MFV): not a worst case scenario, you have made a great discovery. There is a new symmetry !

  5. Lessons of History I New Physics is usually discovered first in loop processes, which involve high massvirtual particles. (Heisenberg Uncertainty Principle) Example I: Absence of KL allowed theorists to deduce the existence of the charm quark. The rate of K mixing allowed a rough determination of the charm mass. Example II: The absence of bs decays and the long B lifetime ruled out topless models. Large Bd mixing showed the top was heavy contrary to theory prejudices of the time. Radiative corrections from Z measurements determined the rough range of the top mass. Vtd Vtd Beautiful and precise measurements of the top quark mass at the Tevatron. However, the couplings |Vts|,|Vtd,|and most importantly the phase of (Vtd) cannot be measured in direct top production.

  6. “DNA identification” of new physics Nishida: “DNA Identification” of new physics Examine correlations between flavor physics observables (Also see talks by Goto, Kubo, Eigen) Popularized by Hazumi and Hitlin M. Spiropuluar;arXiv:0801.0318

  7. Warning: Satirical Biology Article in Nature Nature451, 498 (24 January 2008) | doi:10.1038/451498a; Published online 23 January 2008 SuperB Janet Wright1 Top of page Abstract Raise a glass to world domination. The SuperB virus spread like wildfire — which was funny, really, because we'd put it in the water. Forty years I spent perfecting it, while people were laughing behind their hands. Poor drunken old Dr J, mad as a bat in her dusty old lab, doing her useless antiviral work. Or so they thought. They're not laughing at me now, are they? Once we'd perfected SuperB, my dedicated little group scattered it around the globe. The virus was sprinkled into the headwaters of the Nile, dripped into remote springs and slipped directly into the water glass of a particularly irritating politician. Released into reservoirs, SuperB was lifted into the clouds to fall on fields and gardens. It was sipped from bottles by yuppies and from streams by goat-herders. And it was so powerful that a few drops of rain turned an entire well into a SuperB reservoir.

  8. High Luminosity at Japanese Hot Springs B Factory Talks by Sakai, Gershon, Ohnishi, Biagini, Nakanishi Super B factory 1035 1036 2 x 1035 8 x 1035 Time Laboratory resources Water Temperature

  9. No “Soft Landing” at 1035 Message to KEK administration From Tim Gershon@Atami

  10. KEK Web page (5 Year Plan) Sakai’s talk +20 page report

  11. KEK’s 5 year Roadmap • Official 20 page report released on January 4, 2008 by director A. Suzuki and KEK management • KEKB’s upgrade to 2x1035 in 3+x years is the central element in particle physics. (Higher luminosity is not excluded in any way but is limited by future funding) • Will be finalized after recommendations by the Roadmap Review Committee (March 9-10). • Membership: Young Kee Kim, John Ellis, Rolf Heuer, Jon Rosner, Andrew Hutton and reviewers from material science and other fields. Super-Belle (and Super KEKB) is an open international project.

  12. New site next to Frascati (Tor Vergata) Conceptual Design Report has been finished. Intl Review committee in progress. Beam size TDR in 2010 Question: 39 nanometer beam spot in y, 6 microns in x. Is this possible in a real 2-3 km circumference multi-orbit machine ? Talks by Biagini, Gershon (Collaboration on beam dynamics with Agoh, Ohmi, Ohnishi)

  13. Very Important: Test of the crab waist at DAFNE Brillant and deep idea from P. Raimondi, first proposed in Hawaii Expect ~x 2 from crab waist But will not test nanometer beams M. Biagini

  14. + non-linear effects and machine errors Ohnishi

  15. Talks by Nakanishi, Ohnishi HER OFF ON 0° commissioning No longer science fiction (proposed 30 years ago Palmer/Oide)

  16. Emerging competition and interaction with LHCb and eventually superLHCb Construction almost final. Detector Commissioning ongoing Calorimeters Magnet Muon detector RICH-2 OT RICH-1 VELO

  17. LHCb 2 fb-1 BsJ/ total CDF 2006 ms CP even CP odd flat background fs from Bs J/ Muheim, Wilkinson CERN-LHCb-2006-047 +Casey from Tevatron • Analysis Method • B  VV mode • Angular analysis • sSensitivity • studied at ms = 20 ps–1 • Yield: 131k BsJ/signal events per 2 fb–1 (1 year) • Expected precision(sin s) ~ 0.023 2 fb–1(sin s) ~ 0.042 0.5 fb–1(sin s) ~ 0.010 10 fb–1 hep-ph/0604112 hep-ph/0509242 NP Phase Talks by Casey, Renga: Do not neglect Upsilon(5S) analyses

  18. SM prediction LHCb can explore New Physics in Bsm+m- MSSM SM SM • Highly suppressed in SM • Prediction BR(BSm+m-) = (3.86±0.15)10–9 • could be strongly enhanced in SUSY • Constrained MSSM • BR(BSm+m-) ~ tan6/MH2 • Predicts much largerBR(BSm+m-) ~ a few 10-9 to 10-7 • Muon anomalous magnetic moment g-2 • a = (25.2 ± 9.2) 10-10 (BNL) • disagrees with SM at 2.7 • predicts gaugino mass m1/2in range 250 - 650 GeV • Current best limit • from CDF+D0 is BR(BSm+m-) < 5.810–8 (95% CL ) BR(BSmm) 10-7 0.5 fb–1 exclude BR down to SM signal 2 fb–1 3 evidence of SM signal 10 fb–1 >5 observation of SM signal 10-8 10-9 m1/2 [GeV]

  19. We need better theory to find NP phase and amplitudes in CKM fits Itoh: plum bamboo 3 different scenarios for lattice and theory improvement pine Eigen: Use SU(3) symmetry and conservatively scan theory uncertainties Itoh, Stewart, Flynn

  20. What we don’t know that we don’t know In the strong interaction and in the weak interaction Foggy forest in Nagano

  21. One Example of the Surprises at the current B Factories • Many narrow unanticipated new particles • Although the strong interaction is “well-understood”, these particles were not predicted in the Physics Reports, Yellow Books, review committees and workshops that preceded the B factory….. [Could there be surprises in the weak interactions of quarks ?] [Lesson for the LHC ?]

  22. From the major Japanese newspapers on Nov 10 M = 4433 ±4 ±1 MeV Γ tot = 45 ±17 ±30 MeV Nsig =124 ± 31 evts

  23. 477 fb-1 ~ 1.7 x 10-5 expect only limits ... Expectations for non-B Bar decays of Upsilon(5S) (OZI Suppressed) G≃ 20.5 MeV G≃ 110 MeV Gee≃ 0.27 keV Gee≃ 0.13 keV But Kai-Feng Chen and Anatoly Sokolov look anyways Seen by BaBar, Belle

  24. 14s 20s Surprise: There are huge signals (3S)p+p- “(5S)” (nS)p+p-, (1S)K+K- 3.2s (2S)p+p- (1S)p+p- square box gives ~ 3.9s (1S)K+K- 4.9s

  25. Need CM Scan to tell : OZI decays 2 orders of magnitude too large ! Assume “(5S)” = (5S) PDG value taken for (nS) properties N.B. Resonance cross section 0.302 ± 0.015 nb at ECM = 10.87 GeV PRD 98, 052001(2007) [Belle] (2S)  (1S)p+p- ~ 6 keV (3S) 0.9 keV (4S)1.8 keV (5S) 580 keV Wei-shou Hou: • Is this really the (5S), or is there something else • e.g. a Yb state that overlaps with it? (like the Y(4260)). BELLE-CONF-0774, hep-ex/0710.2577 Last week of December 2007 run for 10 days

  26. Where is the ground state bottomonium ηb ? Talks by Roberto Mussa, Hajime Muramatsu Tests theory and is the highest priority of the quarkonium working group (QWG) Which Upsilon(nS) is best ? Inclusive or exclusive ? What are the hadronic modes of the ηb ?

  27. Hunting dark matter or light Higgs in Υ(nS) decays High precision check of lepton universality in dilepton decays Light Higgs signature Talks by Mussa, Muramatsu

  28. Kuzmin: Do not neglect ISR. You may discover new particles e.g. Y(4260), and even constrain special kinds of new physics

  29. 2007 was the year of D0 mixing But not reported by the New York Times, Washington Post

  30. Talk by Marko Staric K+K-/p+p- and K-p+ratio PRL 98, 211803 (2007), 540fb-1 D0K+K- / p+p- Belle c2/ndf=1.084 (ndf=289) + Difference of lifetimes visually observable y=DG/(2G) 3.2 s from zero (4.1 s stat. only) Also confirmed by BaBar Evidence for D0 mixing (regardless of possible CPV) negligible CPV, yCP=y

  31. data - no mix PDF mix - no mix PDF BaBar D-mixing Signal in D0K+- • Fit results: RD: (3.03±0.16±0.10)x10-3 x’2: (-0.22±0.30±0.21)x10-3 y’: (9.7±4.4±3.1)x10-3 x=Dm/G y=DG/(2G) The quantities x’, y’ are rotated versions of x, y The rotation angle is an unknown strong phase WS mixing fit projection in signal region 1.843 GeV/c2 < m < 1.883 GeV/c2 0.1445 GeV/c2 < m < 0.1465 GeV/c2 CDF confirmation as well

  32. Current status of D0 mixing semileptonic, K+p-, Kspp, yCP, K+p-p0, K+p-p+p-, (3770) Beijing charm workshop, Nov 2007 Belle,BaBar,CLEO combined Large mixing is established. (may be compatible with high end of SM predictions) y=DG/(2G) x x=Dm/G (Anticipated by Yuval G et al.) Why is D0 mixing important for Super B Factories ?

  33. Talk by Marko Staric Another new physics CPV phase ! CPV in D system negligible in SM CPV in interf. mix./decay: The existence of D mixing (if x is non-zero) allows us to look for another unconstrained NP phase but this time from up-type quarks. (compare to CPV in Bs mixing: Casey,Renga, Muheim, Grossman) Current sensitivity ~±200, 50 ab-1 go below 20

  34. More lessons from history (II) --------------------------------------------------------------------------------------------------------------- "A special search at Dubna was carried out by E. Okonov and his group. They did not find a single KL + - event among 600 decays into charged particles [12] (Anikira et al., JETP 1962). At that stage the search was terminated by the administration of the Lab. The group was unlucky." -Lev Okun, "The Vacuum as Seen from Moscow" ------------------------------------------------------------------------------------------------------ BF= 2 x 10-3 Another failure of imagination ?

  35. What the data might look like at 50 ab-1 Gershon: Treasure chest of Golden NP observables.

  36. New Physics at 50 ab-1 NB Constraints from trees and boxes do not agree NP phase in bd Nishida

  37. Extrapolation: BgfK0 at 50/abwith present WA values Nishida, Gershon MC J/K0 This would establish the existence of a NP phase fK0 Compelling measurement in a clean mode

  38. History III: finding NP in AFB (using interference) Conclusion: There is a Z at higher energy even though colliders did not have enough E to produce it

  39. Ali, Mannel, Morozumi, PLB273, 505 (1991) 2s from SM ? 386M 229M

  40. Find the Zero Crossing of AFB(BK* l+ l-)(q2) Yoshikawa: new observables CP and non-CPV Morozum:i (new AFB , CP in K )

  41. Matsuzaki, Morozumi, Gonalez-Springberg, Gershon, Nishida, Goto μγ MC Signal for  LFV

  42. Wise words from one of the discoverers of CP violation At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory.But each time a new frontier of observation is broached we inevitably discover new phenomena which force us to modify substantially our previous conceptions. I believe this process to be unending, that the delights and challenges of unexpected discovery will continue always. Val Fitch, Nobel Prize Speech 1980 BNM 01 Talk

  43. 熱海会議の結論 Atami Conclusion Maybe we should do this more than once a decade ? We would like to thank the local Nagoya, NWU, and KEK organizers, especially Imai-san, for an excellent and stimulating meeting.

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