Observation of b -> d gamma and determination of vertical bar V-td/V-ts vertical bar
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 96期号:22 |
| 关键词 | TO-LEADING ORDER QCD SUM-RULE BRANCHING RATIOS RADIATIVE DECAYS CP-VIOLATION BELLE MODEL |
| 通讯作者 | Mohapatra, D (reprint author), Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA. |
| 英文摘要 | We report the observation of the flavor-changing neutral current process b -> d gamma using a sample of 386 x 10(6) B meson pairs accumulated by the Belle detector at the KEKB e(+)e(-) collider. We measure branching fractions for the exclusive modes B- -> rho(-)gamma, (B) over bar (0) -> rho(0)gamma, and (B) over bar (0) -> omega gamma. Assuming that these three modes are related by isospin, we find B((B) over bar -> (rho, omega)gamma) = (1.32(-0.31)(+0.34)(stat)(-0.09)(+0.10)(syst)) x 10(-6) with a significance of 5.1 sigma. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements vertical bar V-td/V-ts vertical bar to be 0.199(-0.025)(+0.026)(exp)(-0.015)(+0.018)(theor). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238161400012 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212665]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Belle Collaboration. Observation of b -> d gamma and determination of vertical bar V-td/V-ts vertical bar[J]. PHYSICAL REVIEW LETTERS,2006,96(22). |
| APA | Belle Collaboration.(2006).Observation of b -> d gamma and determination of vertical bar V-td/V-ts vertical bar.PHYSICAL REVIEW LETTERS,96(22). |
| MLA | Belle Collaboration."Observation of b -> d gamma and determination of vertical bar V-td/V-ts vertical bar".PHYSICAL REVIEW LETTERS 96.22(2006). |
入库方式： OAI收割
来源：高能物理研究所
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