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| 21世紀COEセミナー「B Physics Beyond CP Violation: Semileptonic B Decays」 |
| 日時 |
平成17年(2005年)11月25日(金)11:00〜12:00 |
| 場所 |
大セミナー室(H701) |
| 講師 |
森井 政宏 氏 (ハーバード大学) |
| 題目 |
B Physics Beyond CP Violation: Semileptonic B Decays |
| 概要 |
The success of the B Factories at SLAC and KEK has advanced our knowledge of CP violation, a prerequisite for the creation of the matter-dominant universe. Steady increase of data has brought a new era of precision CP measurements, in which the unitarity of the Cabibbo-Kobayashi-Maskawa matrix is scrutinized for signs of New Physics. One of the crucial information, surprisingly, comes not from CP violation but from studies of semileptnic decays of the B mesons. I will discuss how various measurements of the B semileptonic decays mesh together to determine the size of the smallest CKM matrix element |Vub|, and how such measurements are made possible through progresses in the theory of B decays. |
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