Study of the suppressed B meson decay B(-)-> DK(-), D -> K(+)pi(-)
文献类型：期刊论文
| 作者 | Belle Collaboration |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2008 |
| 卷号 | 78期号:7 |
| 关键词 | CP-VIOLATION ASYMMETRIES DETECTOR |
| 通讯作者 | Horii, Y (reprint author), Tohoku Univ, Sendai, Miyagi 980, Japan. |
| 英文摘要 | We report a study of the suppressed B meson decay B(-)-> DK(-) followed by D -> K(+)pi(-), where D indicates a D(0) or (D)overbar(0) state. The two decay paths interfere and provide information on the CP-violating angle phi(3). We use a data sample containing 657x10(6) B(B)overbar pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) storage ring. We do not find significant evidence for the mode B(-)-> DK(-), D -> K(+)pi(-), and set an upper limit of r(B)< 0.19, where r(B) is the magnitude of the ratio of amplitudes vertical bar A(B(-)->(D)(0)K(-))/A(B(-)-> D(0)K(-))vertical bar. The decay B(-)-> D pi(-), D -> K(+)pi(-) is also analyzed as a reference, for which we observe a signal with 6.6 sigma significance, and measure the charge asymmetry A(D pi) to be -0.02(-0.16)(+0.15)(stat)+/- 0.04(syst). In addition, the ratio B(B(-)-> D(0)K(-))/B(B(-)-> D(0)pi(-)) is measured to be [6.77 +/- 0.23(stat)+/- 0.30(syst)]x10(-2). |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000260574800012 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212878]  |
| 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. Study of the suppressed B meson decay B(-)-> DK(-), D -> K(+)pi(-)[J]. PHYSICAL REVIEW D,2008,78(7). |
| APA | Belle Collaboration.(2008).Study of the suppressed B meson decay B(-)-> DK(-), D -> K(+)pi(-).PHYSICAL REVIEW D,78(7). |
| MLA | Belle Collaboration."Study of the suppressed B meson decay B(-)-> DK(-), D -> K(+)pi(-)".PHYSICAL REVIEW D 78.7(2008). |
入库方式： OAI收割
来源：高能物理研究所
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