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The Riches of Charmless Rare B Decays George W.S. Hou ( 侯維恕 ) National Taiwan University June 7, 2002 2nd BCP NTU.

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Presentation on theme: "The Riches of Charmless Rare B Decays George W.S. Hou ( 侯維恕 ) National Taiwan University June 7, 2002 2nd BCP NTU."— Presentation transcript:

1 The Riches of Charmless Rare B Decays George W.S. Hou ( 侯維恕 ) National Taiwan University June 7, nd BCP NTU

2 7 June 2002George W.S. Hou I. Introduction: The Episode Inclusive  Anomaly & New Physics (bsg Dipole) - New Physics CPV? (bsg Dipole) Large  and EWP - Factorization, T-P Interference &  º    Multimode Fit for , Hou-Smith-Wuerthwein] Oddities and  (rescattering) Phase Abelian Flavor & CPV - Rare Baryonic 1997  1999: Data Increase from 3 fb -1 to 10 fb -1 Bonanza Years Set In ! I gained personally the following PRLs: Future: Light-cone of Present & Past K  /  Able Collaborators

3 7 June 2002George W.S. Hou Outline I. Introduction: The Episode II. Strong Penguins: Mesonic * K  /  rescatter ? *  K Problem?  New/Exotic III. Strong Penguins: Baryonic * From B  pp(bar)K to B   K * Comment on 3-body IV. EM & EW Penguins * Abelian Flavor/SUSY: b  s  and B s System * B  Kl + l − : 4th Generation? V. Conclusion: Richness Growing Probably can’t cover all …

4 7 June 2002George W.S. Hou II. Strong Penguins: Mesonic * K  /  Rescatter ? In Late 1999 Conjecture (Hou-Yang, PRL’00): (rescatter) Large  & Large  2002 Rescatter ?

5 7 June 2002George W.S. Hou Approach: Rescatter Only in Final State Formalism Developed from D 0 h 0 Rescattering Topologies PRD’02

6 7 June 2002George W.S. Hou Some Numerical Results Controlling Controlling If Belle Correct Too Large ? ! ! CPV measurement Important Belle/BaBar Average Possible ! Too Small ? Will See !  Rates! OK

7 7 June 2002George W.S. Hou Case for New Dynamics in  Modes  ’ K Rate Large : Still Not Understood After ~ 5 yrs  ’ X s Rate Large Resonance b  sg  ’ BaBar / m(Xs) Spectrum “3-body”

8 7 June 2002George W.S. Hou Anomaly g*  g  ’  ? For: Both CLEO/BaBar Spectrum [Belle Soon?] Possible to account for Strength & Spectrum All Other Models tend to Peak at Lower Mass Against: Form Factor Argument  Too Suppressed (Kagan) Glueball Support of F.F.? [Hou-Tseng] mPmP

9 7 June 2002George W.S. Hou Further Challenge from    ggg*   ggg  ’ Kagan hep-ph/ (HF’01 Talk)  3 Form Factor Fall-offs Fast   ’ from  z = 2E_  ’ /m_  (4-body Decay MC) Await CLEO-c (a), (b), (c): Slow, Intermed. Fast F.F. Fall-off Did Not Consider Hou-Tseng F.F. Conjecture Too Large ‘93

10 7 June 2002George W.S. Hou Further Elucidation 3g System Very Massive

11 7 June 2002George W.S. Hou III. Strong Penguins: Baryonic * From B  pp(bar)K to B   K This is a Great Expt/TH Interface Story Semi-sabbatical at BNL/Cornell: CLEO 2-body Rare Baryon Limits  Start Work Draft Ready (w/ Soni) 2/1999 …. CLEO D*pn PRL’00  Submit PRL [Restart Rare Baryon Field] Suggest Minzu Wang start on Rare baryon 4/01 Work on D*pn Model [S.Y. Tsai talk] PRD’02 Hint of Rare Baryon 7’01  Easy Paper on  pn PLB’02 Discovery of pp(bar)K 9/01 (Belle internal:)  Extension Work [S.Y. Tsai talk] Submit PRD Further Stimulation on B  Glueball

12 7 June 2002George W.S. Hou No Evidence ?  Elsewhere ?

13 7 June 2002George W.S. Hou Expect Evts/Mode by End of 2002 [Scale up from BES] Lower Bound Naively CLEO chose “Conservative” Cute if  Emerges From CLEO 20x

14 7 June 2002George W.S. Hou (LEAR) Narrower If B-W + Underlying Too broad ? [Palano, Frascati ’99] Maybe There Afterall !

15 7 June 2002George W.S. Hou Close’s Glueball Filter Similar Peak in Published WA102 at Slightly Lower Mass (22XX)

16 7 June 2002George W.S. Hou Possible Picture in B Decay: Appear By Summer ? NP? Exciting if True !! Glueball from Charmless B Gluonic Counterpart of Penguin b -> sqq

17 7 June 2002George W.S. Hou Conclusion /Outline I. The Richness of ’97 - ’99: Episode I II. Strong Penguins: Mesonic * K  /  rescatter ? *  K Problem? [  New/Exotic ] III. Strong Penguins: Baryonic * From B  pp(bar)K to B   K [* Comment on 3-body] [IV. EM & EW Penguins * Abelian Flavor/SUSY: b  s  and B s System * B  Kl + l − : 4th Generation?] V. Conclusion: Richness Growing Just in Hadronic Entering CPV & NP Probes Soon

18 7 June 2002George W.S. Hou Two Off-shoot Thoughts on  bsg gluonic dipole: c g Hybrid from Charmless ? BaBar Published Belle Published sin2  sin2  1 |c g | = 1, 0.5, 0.25  is NP Phase Sensitive Probe [w/ K.C. Yang] K g ? K?K? [w/ Chua and Sen]


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