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Direct CP Violation from Decays

Direct CP Violation from Decays. January 10, 2005. “ Seminar at Kyungpook National University ”. C. S. Kim ( 김충선 , 金忠善 ) Yonsei University, Seoul, Korea. Contents. 1. Introduction 2. What are C,P,T and their Violation? 3. 3 Ways for CP Violations from B Decays

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Direct CP Violation from Decays

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  1. Direct CP Violation from Decays January 10, 2005 “Seminar at Kyungpook National University” C. S. Kim (김충선, 金忠善) Yonsei University, Seoul, Korea B&CP at KNU

  2. Contents • 1. Introduction • 2. What are C,P,T and their Violation? • 3. 3 Ways for CP Violations from B Decays • 4. (1st) Direct CP Violation from BaBar, Belle • 5. Conclusions B&CP at KNU

  3. Introduction Marcello A. Giorgi (ICHEP2004) Y. Sakai (ICHEP2004) C.S. Kim B&CP at KNU

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  8. SLAC notation (In honor of Bjorken) B&CP at KNU

  9. What are C,P,T and their Violation? C. S. Kim B&CP at KNU

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  18. 3 Ways for CP Violation from B Decays Marcello A. Giorgi (ICHEP2004) F. Bianchi (ICHEP2004) Rainer Stamen (ICHEP2004) A. I. Sanda (FPCP2004) B&CP at KNU

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  22. [1] CP Violation through Mixing B&CP at KNU

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  26. Comments • 1. Are showing new physics? • 2. Or only hadronic uncertainties? • 3. Is large EW-penguin of NP correct? (see Buras et al, and Yoshikawa.) • 4. How about large instead of large EW-penguin ? • 5. Strong phase ? B&CP at KNU

  27. (1st) Direct CP Violation from BaBar, Belle C. S. Kim (w/ Sechul Oh, Chaehyun Yu) C.S. Kim (w/ Darwin Chang, H. Hatanaka) B&CP at KNU

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  41. Belle Mixing Induced Direct CP Violation Red Hot ! 2001 J/yKS, p+p-, h’KS, fKS One B Decay CP Eigenstate Other B Decay Tag Flavor Measure Both Decay Vertex B&CP at KNU

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  47. Conclusions • 1. Is source of CPV only CKM phase? • 2. , i.e. SM predicted value? • 3. Is CKM unitary? • 4. Low energy B-physics will show new physics of high energy? Which processes? • 5. Do we fully understand semi-leptonic and non-leptonic decay processes? • 6. We got more questions than answers…. B&CP at KNU

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