Inclusive decays of bottom hadrons in new formulation of heavy quark effective field theory
文献类型：期刊论文
| 作者 | Yan, YA; Wu, YL ; Wang, WY; Yan, YA , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
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| 出版日期 | 2000 |
| 卷号 | 15期号:17页码:2735-2770 |
| 关键词 | b Meson Lifetimes Radiative-corrections Semileptonic Decays Qcd Corrections Flavor Decays Charm B->c(c)Over-bar-s Distributions Operators Expansion |
| ISSN号 | 0217-751X |
| 英文摘要 | We apply the new formulation of heavy quark effective field theory (HQEFT) to the inclusive decays of bottom hadrons. The long-term ambiguity of using heavy quark mass or heavy hadron mass for inclusive decays is clarified within the framework of the new formulation of HQEFT. The 1/m(b) order corrections are absent and contributions from 1/m(b)(2) terms are calculated in detail. This enables us to reliably extract the important CKM matrix element \V-cb\ from the inclusive semileptonic decay rates. The resulting lifetime ratios tau(B-s(0))/tau(B-0) and tau(Lambda(b))/tau(B-0) are found to well agree with the experimental data. We also calculate in detail the inclusive semileptonic branching ratios and the ratios of the tau and beta decay rates as well as the charm countings in the B-0, B-s(0) and Lambda(b) systems. For B-0 decays, all the observables are found to be consistent with the experimental data. More precise data for the B-0 decays and further experimental measurements for the B-s(0) and Lambda(b) systems will be very useful for testing the framework of new formulation of HQEFT at the level of higher order collections. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000088667900005 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12940]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Yan, YA , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yan, YA,Wu, YL,Wang, WY,et al. Inclusive decays of bottom hadrons in new formulation of heavy quark effective field theory[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2000,15(17):2735-2770. |
| APA | Yan, YA,Wu, YL,Wang, WY,&Yan, YA , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2000).Inclusive decays of bottom hadrons in new formulation of heavy quark effective field theory.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,15(17),2735-2770. |
| MLA | Yan, YA,et al."Inclusive decays of bottom hadrons in new formulation of heavy quark effective field theory".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 15.17(2000):2735-2770. |
入库方式： OAI收割
来源：理论物理研究所
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