1. Υ Strange Beauty and other Beasts from Υ(5S) at Belle Rencontres de Moriond/Electroweak, March, 2010 Υ (5S) ResonanceΥ (5S) Resonancemotivationdata recent results outlook K. Kinoshita University of Cincinnati Belle Collaboration

2. K. Kinoshita Moriond EW 2010 2 e + source cavity B factory: } B Primary goal: study CP violation in weak decays of B meson 1000 fb –1 = 1 ab –1 recorded by Belle as of 12/09 KEKB

3. K. Kinoshita Moriond EW 2010 3 M=10580±1 MeV/c 2, Γ =20.5±2.5MeV BUT wait, more than Υ (4S) …. Υ (10860), or Υ (5S) continuum  (4S) ↑  (5S) B s are produced copiously in pp(bar) collisions (FNAL, LHC) – can studying B s at the Υ (5S) be competitive? pro’s CLEAN events, energy definition,  ’s; ~100% trigger efficiency high luminosity, established detector, Υ (4S) data for comparison ↑  (4S) threshold

4. K. Kinoshita Moriond EW 2010 4 Υ (5S) physics B s in Standard Model CP-asymmetry ~ 0 -> window to New Physics  CP /  =O(10%) Spectator decay (as w non-strange B) -> quark-hadron duality absolute BF’s, modes w π 0, γ spectroscopy B s (*) mass B (s) (*) ( π) event fractions bottomonium, bottomonium-like states

5. K. Kinoshita Moriond EW 2010 5 Data June 2005: 3-day “engineering” run basic  (5S), B s (*) properties, test KEKB at  (5S) - L max ~1.39x10 34 cm -2 s -1 June 2006: 20-day run + 21.7 fb –1 on resonance K.F. Chen et al., PRL 100, 112001 (2008) J. Wicht et al., PRL 100, 121801 (2008) R. Louvot et al., PRL 102, 021801 (2009) A. Drutskoy et al., arXiv:0909.5223 R. Louvot et al., arXiv:0909.2160 J. Li et al., arXiv:0912.1434 C.-C. Peng et al., BELLE-CONF-0904 S. Esen et al., NEW = 4 x largest previous sample (CLEO) 1.86 fb –1 at peak (10869 MeV) A. Drutskoy et al., PRL 98, 052001 (2007) A. Drutskoy et al., PRD 76, 012002 (2007) Oct 2008-Dec 2009: extended run ~100 fb –1 on resonance December 2007: scan 6 pts + 7.9 fb –1 above resonance K.F. Chen et al., arXiv:0808.2445 energy scan 10.869 GeV this talk

6. K. Kinoshita Moriond EW 2010 6 fundamentals Fox-Wolfram moments (3.01±0.02±0.16)x10 5 events/fb –1 Continuum 3.67 fb –1 (scaled) Event count continuum B s fraction in Υ (5S) events inclusive D s, D 0 production DsDs 1.86 fb –1 PRL 98, 052001 (2007)

7. K. Kinoshita Moriond EW 2010 7 MC simulation B s at ϒ (5S): Full reconstruction of B s candidates:

8. K. Kinoshita Moriond EW 2010 8 23.6 fb –1 B s at ϒ (5S): Comparing rates: [PRL 102, 021801 (2009)] Full reconstruction of B s candidates:

9. K. Kinoshita Moriond EW 2010 9 arXiv:0909.2160 R. Louvot B s decays: dominated by spectator process (as w B u,d ) –Quark-hadron duality similar semileptonic widths B q -> DX B s -> D s X for many modes

10. K. Kinoshita Moriond EW 2010 10 data 23.6 fb –1 slice/projection continuum peaking bg 2-d fit

11. K. Kinoshita Moriond EW 2010 11 data 23.6 fb –1 slice/projection 2-d fit

12. K. Kinoshita Moriond EW 2010 12 data 23.6 fb –1 slice/projection 4-d fit incl. polarization

13. K. Kinoshita Moriond EW 2010 13 Data polarization P-> VV decay: Polarization depends on hadronization detail -> test of factorization hypothesis longitudinal transverse helicity angles

14. K. Kinoshita Moriond EW 2010 14 CKM-favored AND flavor-neutral CP=+1 in heavy quark limit, m c ->∞ ~ saturated by 2-body D s (*)+ D s (*)– -> difference in widths of CP=±1 S. Esen Aleksan, Dunietz, Kayser Z. Phys., C54, 653 (1992)

15. K. Kinoshita Moriond EW 2010 15 Reconstruction

16. K. Kinoshita Moriond EW 2010 16 Reconstruction Candidate selection One candidate (all channels) per event selection: lowest chisquare based on

17. K. Kinoshita Moriond EW 2010 17 2-d fit in (ΔE, M bc ), simultaneous over 3 modes 23.6 fb –1 signal wrong combination crossfeed background

18. K. Kinoshita Moriond EW 2010 18 Branching fraction more theory input requested! [theory; Aleksan et al., PLB 316, 567 (1993)

19. K. Kinoshita Moriond EW 2010 19 Other CP Eigenstates B-factory measurement: mixing-mediated CP oscillations depends on complex argument of mixing box diagram depends on complex argument of mixing box diagram CP violation in CKM is insufficient to explain baryon asymmetry Mod. Phys. Lett A9, 75 (1994); PRD 51, 379 (1995); Nucl.Phys. B287, 757 (1987) = 0 for B s arg(V tb *2 V ts 2 ) = 0 for B s => window to non-SM CP-violation

20. K. Kinoshita Moriond EW 2010 20 arXiv:0912.1434 J. Li CP eigenstate; expectation Based on flavor SU(3) symmetry + PDG: Reconstruction

21. K. Kinoshita Moriond EW 2010 21 2-d fit in (ΔE, M bc ), simultaneous over sub-modes 23.6 fb –1

22. K. Kinoshita Moriond EW 2010 22 2-d fit in (ΔE, M bc ), simultaneous over sub-modes 23.6 fb –1

23. K. Kinoshita Moriond EW 2010 23 C. C. Peng

24. K. Kinoshita Moriond EW 2010 24 Also: CP eigenstates 23.6 fb –1

25. K. Kinoshita Moriond EW 2010 25 arXiv:0909.5223 A. Drutskoy

26. K. Kinoshita Moriond EW 2010 26 CLEO PRL 54, 381 (1985)  (5S) reconstruction Relative rates: hadronization/spectroscopy

27. K. Kinoshita Moriond EW 2010 27 MC simulation 23.6 fb –1 bg-subtracted Distributions in M bc

28. K. Kinoshita Moriond EW 2010 28 Reconstruct Bπ, look for B (*) in missing ΔE, M bc MC 23.6 fb –1 initial state radiation (new interpretation)

29. K. Kinoshita Moriond EW 2010 29 Summary KEKB and Belle at Υ (10860)+ 6/05, 6/06: 23 days, 23.6 fb –1, 1.3M B s events 6/05, 6/06: 23 days, 23.6 fb –1, 1.3M B s events 12/07: energy scan, 6 pts, 8 fb –1 12/07: energy scan, 6 pts, 8 fb –1 Strange beauty Strange beautymeasured observed CP states & more sought Beasts Beasts more to come... more to come... 10/08-12/09: ~100 fb –1 at Υ (5S), ~6M B s event, additional possible scan near/above Υ (5S) in Spring 2010 SuperKEKB/Belle II ~2014

30. K. Kinoshita Moriond EW 2010 30 Backup slides

31. K. Kinoshita Moriond EW 2010 31 Systematic errors

32. K. Kinoshita Moriond EW 2010 32 systematics

33. K. Kinoshita Moriond EW 2010 33 systematics

34. K. Kinoshita Moriond EW 2010 34 Searches for new modes of B s γγ : difficult for hadron machines beyond SM: up to 5x10 –6 23.6 fb –1 PRL 100, 212801 (2008) (prev. Belle: <5.3 x 10 –5 )

35. K. Kinoshita Moriond EW 2010 35 Searches for new modes of B s φγ 23.6 fb –1 First observation

36. K. Kinoshita Moriond EW 2010 36 e + source cavity Belle detector the hardware (KEK, 1-1 Oho, Tsukuba-shi, Ibaraki-ken, Japan) 8.0 GeV 3.5 GeV 22 mr L max = 1.71 X 10 34 cm –2 s –1 (world record) L max = 1.71 X 10 34 cm –2 s –1 (world record) Data (6/1999–12/2007) Data (6/1999–12/2007)  L dt = 760 fb –1 @{ Υ (4S)+off(~10%)} (>7.6x10 8 B events)(>7.6x10 8 B events)  L dt = 23.6 fb –1 @ Υ (5S) Charged tracking/vertexing SVD: SVD: (-7/03) 3-layer DSSD Si µstrip (152M B pairs) (-7/03) 3-layer DSSD Si µstrip (152M B pairs) (8/03-) 4-layer (550+M BB) (8/03-) 4-layer (550+M BB) CDC: 50 layers (He- ethane) CDC: 50 layers (He- ethane) Hadron identification CDC: dE/dx CDC: dE/dx TOF: time-of-flight TOF: time-of-flight ACC: Threshold Cerenkov ACC: Threshold Cerenkov(aerogel)Electron/photon ECL: CsI calorimeter ECL: CsI calorimeter Muon/K L KLM: Resistive plate KLM: Resistive platecounter/iron  = 0.425 KEKB B-factory

37. K. Kinoshita Moriond EW 2010 37 … the people … the people (authors vary, each paper) 14 countries, 55 institutes, ~400 collaborators IHEP, Vienna ITEP Kanagawa U. KEK Korea U. Krakow Inst. of Nucl. Phys. Kyoto U. Kyungpook Nat’l U. EPF Lausanne Jozef Stefan Inst. / U. of Ljubljana / U. of Maribor U. of Melbourne BINP Chiba U. U. of Cincinnati Ewha Womans U. Fu-Jen Catholic U. U. of Giessen Gyeongsang Nat’l U. Hanyang U. U. of Hawaii Hiroshima Tech. IHEP, Beijing IHEP, Moscow Nagoya U. Nara Women’s U. National Central U. National Taiwan U. National United U. Nihon Dental College Niigata U. Nova Gorica Osaka U. Osaka City U. Panjab U. Peking U. Princeton U. Riken Saga U. USTC Seoul National U. Shinshu U. Sungkyunkwan U. U. of Sydney Tata Institute Toho U. Tohoku U. Tohuku Gakuin U. U. of Tokyo Tokyo Inst. of Tech. Tokyo Metropolitan U. Tokyo U. of Agri. and Tech. INFN Torino Toyama Nat’l College VPI Yonsei U.