Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET
文献类型：期刊论文
| 作者 | Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.; Dai, YB ; Zhu, SL
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 1998 |
| 卷号 | 58期号:7页码:- |
| 关键词 | Qcd Sum-rules Quark Effective Theory Excited Heavy Mesons Pion Wave-function Chiral Perturbation-theory Effective Field-theory Resonance Physics Form-factors Symmetry Masses |
| ISSN号 | 0556-2821 |
| 英文摘要 | We first improve the previous results on the masses of the doublets (0(+),1(+)) and ( 1(+),2(+)) with QCD sum rules up to the order of O(1/m(Q)) in HQET. With the mass matrix of the two 1 (+) slates, we obtain the mixing angle for the two states and construct the interpolating currents which couple to only one of the two eigenstates up to the order O(1/m(Q)). Using these results we derive the light-cone sum rules for the amplitudes of the pionic decay of B-1 and B-2* up to the order O(1/m(Q)) in HQET. The O(1/m(Q)) terms in these amplitudes are found to be small. When applied to D-1 and D-2* the theoretical results are in good agreement with experimental data though the theoretical uncertainty is sizable for the D system. [S0556-2821(98)02319-3] |
| 学科主题 | Physics |
| WOS记录号 | WOS:000076196700026 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12253]  |
| 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 | Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,Dai, YB,Zhu, SL. Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET[J]. PHYSICAL REVIEW D,1998,58(7):-. |
| APA | Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,Dai, YB,&Zhu, SL.(1998).Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET.PHYSICAL REVIEW D,58(7),-. |
| MLA | Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,et al."Decay widths of B-1 and B-2(*) up to the order O(l/m(Q)) in HQET".PHYSICAL REVIEW D 58.7(1998):-. |
入库方式： OAI收割
来源：理论物理研究所
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