Measurement of the B+ and B0 Lifetimes Using Topological Reconstruction of Inclusive and Semileptonic Decays
Physical Review Letters 79 巻 4 号
590-596 頁
1997-07-28 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Measurement of the B+ and B0 Lifetimes Using Topological Reconstruction of Inclusive and Semileptonic Decays
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| 作成者 |
The SLD Collaboration
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| 収録物名 |
Physical Review Letters
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| 巻 | 79 |
| 号 | 4 |
| 開始ページ | 590 |
| 終了ページ | 596 |
| 抄録 |
The lifetimes of B+ and B0 mesons are measured using a sample of 150 000 hadronic Z0 decays collected by the SLD experiment at the SLAC Linear Collider between 1993 and 1995. Two analyses are presented in which the decay length and charge of the B meson are reconstructed. The first method uses a novel topological vertexing technique while the second uses semi-inclusively reconstructed semileptonic decays. The topological analysis yields a sample of 6033 (3665) charged (neutral) vertices with good charge purity, whereas the semileptonic analysis yields a smaller sample of 634 (584) charged (neutral) decays with excellent charge purity. Combining the results from both analyses, we find τB+ = 1.66±0.06(stat)±0.05(syst) ps, τB0 = 1.64±0.08(stat)±0.08(syst) ps, and τB+/τB0 = 1.01±0.07(stat)±0.06(syst).
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| 言語 |
英語
|
| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 1997-07-28 |
| 権利情報 |
Copyright (c) 1997 American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.79.590
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.79.590
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