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ミシマ サトシ
MISHIMA Satoshi
三島 智 所属 埼玉医科大学 医学部 教養教育 職種 専任講師 |
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| 論文種別 | 学術雑誌(原著) |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | B → K*ℓ+ℓ- decays at large recoil in the Standard Model: a theoretical reappraisal |
| 掲載誌名 | 正式名：Journal of High Energy Physics ISSNコード：1029-8479 |
| 出版社 | Springer Verlag |
| 巻・号・頁 | 2016(06),116-0-116-32頁 |
| 著者・共著者 | Marco Ciuchini,Marco Fedele,Enrico Franco,Satoshi Mishima,Ayan Paul,Luca Silvestrini,Mauro Valli |
| 発行年月 | 2016/06/20 |
| 概要 | Abstract: We critically reassess the theoretical uncertainties in the Standard Model calculation of the B → K∗ℓ+ℓ− observables, focusing on the low q2 region. We point out that even optimized observables are affected by sizable uncertainties, since hadronic contributions generated by current-current operators with charm are difficult to estimate, especially for q2 ∼ 4mc 2 ≃ 6.8 GeV2. We perform a detailed numerical analysis and present both predictions and results from the fit obtained using most recent data. We find that non-factorizable power corrections of the expected order of magnitude are sufficient to give a good description of current experimental data within the Standard Model. We discuss in detail the q2 dependence of the corrections and their possible interpretation as shifts of the Standard Model Wilson coefficients. |
| DOI | 10.1007/JHEP06(2016)116 |