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Prospects for New Physics in

Prospects for New Physics in. b ⇄ s Phenomena and the Squark. November 19, 2004. b  sqq Penguin CPV. -. Belle @LP03 (140 fb -1 ). [PRL 91, 261602 (2003)]. B 0  f Ks. B 0  J/ y Ks etc. Different !!. sin2 f 1 =0.728  0.06. “ sin2 f 1 ”= - 0.96  0.51.

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Prospects for New Physics in

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  1. Prospects for New Physicsin b ⇄ s Phenomena and the Squark November 19, 2004

  2. b  sqq Penguin CPV - Belle @LP03 (140 fb-1) [PRL 91, 261602 (2003)] B0fKs B0 J/yKsetc Different !! sin2f1=0.728  0.06 “sin2f1”= -0.96  0.51 3.5s deviation from the SM ! ICHEP 2004, Beijing

  3. 274M BB S = 0.736 fit B0f K0 : CPV Result f K0 Good tags Poor tags Good tags fKS+fKL:S(fK0) = +0.06 0.330.09 A(fK0) = +0.080.220.09 ~2.2s away from SM ICHEP 2004, Beijing

  4. VP, PP Anticorrelation Chua, WSH, Nagashima, PRL’04 submitted 9/03 N.B. SfKs< 0Is/Was Extreme George W.S. Hou (NTU)

  5. Two Nicer, Gentler Scenarios Post 2004 George W.S. Hou (NTU)

  6. Results on sin2b from s-penguin modes 2.7s from s-penguin to sin2b (cc) 2.4s from s-penguin to sin2b (cc) Scenario 1 All new! All new! ~ 0.3 – 0.4 Marcello A. Giorgi

  7. Results on sin2b from s-penguin modes 2.7s from s-penguin to sin2b (cc) 2.4s from s-penguin to sin2b (cc) Scenario 2 All new! All new! ~ 0.7 – 0.8 eventually (?) ~ 0.45 Marcello A. Giorgi

  8. Level Splitting by Large sR-bR Mixing Drive One State Light strange-beauty squark (Approx. Abelian Flavor Symm.) 1 CP Phase s Focus on 200 GeV George W.S. Hou (NTU)

  9. NP CPV phase s~ 90°or 270° ~ 200 GeV Collider Direct Search ~ 500 GeV Model Upshot “Milder” 2004 results more interesting ! Two Particle System 7 Two Scenarios but need to disentangle hadronic effect Clean Modes @ Flavor Factory George W.S. Hou (NTU)

  10. Surviveb sg Rate Constraint 1, 0.5 TeV 2, 0.5 1, 0.65 TeV 2, 0.65 1, 0.8 TeV 2, 0.8 [ 700 - 800 GeV More Conservative ] s ≲ p/2, ors ≳ 3p/2 s ~ p: LR Chiral Enhancement George W.S. Hou (NTU)

  11. f, a, b: hadronic param. f a gives SM part Amp ~ f (a + b ) B fKs Rate ? s ~ p: LR Chiral Enhancement George W.S. Hou (NTU)

  12. Amplitudes hadronic uncertainty V∓ A Reason why Opposite Trend inSfKs vsSh’Ks , SKsp0 Right-handed interactions George W.S. Hou (NTU)

  13. The Two Scenarios • Scenario 1: s ~p/2 • SfKs~ 0.45 accommodating • gluino mass~ 650 – 900 GeV • [Prefer to keep gluino mass • above 500 GeV (L.E. Constraints) • Scenario 2: s ~ 3p/2 • Sh’Ks ~ 0.3 - 0.4 • gluino mass~ 650 – 800 GeV George W.S. Hou (NTU)

  14. Interesting! Clean Measure: DmBs, sin2FBs 1, 0.5 TeV • Scenario 1: s ~p/2 • SfKs~ 0.45 • gluino mass~ 650 – 900 GeV • - DmBs ~ 25 - 90ps-1 • - sin2FBs ~+1 • Scenario 2: s ~ 3p/2 • Sh’Ks ~ 0.3 - 0.4 • gluino mass~ 650 – 800 GeV • - DmBs ~ 50 - 100ps-1 • - sin2FBs ~―1 2, 0.5 1, 0.5 2, 0.5 1, 0.8 2, 0.8 N.B. sin2FBs not discriminating George W.S. Hou (NTU)

  15. 3rd Measure: Wrong Helicity Photon inb sgR b sgL in SM • Strength of Mixing-dep. CPV • Test gR component • (Atwood, Gronau, Soni, 1997) • SK*0(Ksp0)gnowPromising • Scenario 1: s ~p/2 • SKsp 0g~ 0 (―0.1 - +0.2) • Not Easy. • Scenario 2: s ~ 3p/2 • SKsp 0g ~ ―0.4 - ― 0.7 • Much Easier ! Free of hadronic uncertainty SKsp 0gbetter thansin2FBs George W.S. Hou (NTU)

  16. Collider Direct Search Model[assume maximal mixing] Two Particle System  3 Parameters TeV Scale SUSY NP CPV phase s~ 90°or 270° ~ 200 - 500 GeV ~ 650 - 900 GeV Two Scenarios but need to disentangle hadronic effect Clean Modes @ Flavor Factory George W.S. Hou (NTU)

  17. Collider Direct Search Standard b squark limit diluted by dual s-bflavor of George W.S. Hou (NTU)

  18. Question is Decay: bino LSP • or gravitino • Can be Stable? (LSP) Detection • Basically, just a light “b”-squark in Production • so, Discovery not a problem. sin2q is b fraction Anyway, need Good b-tagging ! [s-tagging?] In principle  Heavy MIPs George W.S. Hou (NTU)

  19. standard sbeauty • Discovery (> 10 evts) • up to 300 GeV • w/ 2 fb−1 & sin2qm>0.5 • Single vs double b-tag • contain info on sinqm • b-tag cross section: • check consistency • vs mass reference 1 George W.S. Hou (NTU)

  20. Comment on fK*Polarization Puzzle refer to Hsiang-nan’s talk George W.S. Hou (NTU)

  21. g b x x Heuristic/Drastic Model On-shell bsg: gis Transverse bsg ~ 3 x 10−4 bsg ~ few x 10−3 0.1% ? 10% BK*g ~ 4 x 10−5 BKT*fT~ 5 x 10−6 min. is “gg” Simple String Fragmentation  Resonances Complicated Color Structure George W.S. Hou (NTU)

  22. Really, | 〉 component of |K*〉 Ansatz Soft ad hocterm George W.S. Hou (NTU)

  23. Strong disagreement in r+K*0 rate • If BaBar value, then r+K*0 can be fed • from f/w K*+ via Rescattering George W.S. Hou (NTU)

  24. Conclusion • SfKs,SKsp0 ,Sh’Ks Data May StillCall for - Larges-b Mixing, w/ New CPV Phase & R.-h. Interaction • A Light Flavor-mixed Squark? Independtly Well Motivated (Flavor & SUSY) • Survive b s g (!) • Can Account for SfKs ≲ SyKs, xorSKsp0 ,Sh’Ks ≲ SyKs • DmBs,sin2FBsnow Quite Measurable and Interesting • SKsp0g Promising, Clean; better CPV measure than sin2FBs • fK*Polarization Puzzle may call for Drastic Remedy • Search at Tevatron (maybe at LHC) Profitable George W.S. Hou (NTU)

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