Heavy meson decay constants to 1/m(Q)
文献类型：期刊论文
| 作者 | Jin, HY; Dai, YB ; Guo, XH; Huang, CS; Dai, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 1995 |
| 卷号 | 24期号:4页码:453-468 |
| 关键词 | Chiral Perturbation-theory Quark Effective Theory Weak Form-factors Qcd Sum-rules Symmetry Realization Fb |
| ISSN号 | 0253-6102 |
| 英文摘要 | We introduce the vector meson contributions in heavy-light chiral perturbation theory (HLCPT) and construct the Lagrangian and current to the order 1/m(Q). With this, to the order 1/Lambda(csb)(2) (Lambda(csb) is the chiral symmetry breaking scale) we calculate corrections to f(D) and f(B) arising from coupled-channel effects to the orders 1/m(c) and 1/m(b). At the tree level in HLCPT, using the relativistic Bethe-Salpeter (BS) equation with the kernel containing a confinement term and a gluon exchange term in a covariant generalization of the Coulomb gauge we calculate f(D)((0)) and f(B)((0)) when m(Q) --> infinity as well as the 1/m(Q) corrections. HLCPT and the heavy quark effective theory (HQET) are matched at the scale Lambda(csb). Adding the perturbative and nonperturbative contributions we give the values for f(D) and f(B) respectively. It is found that our result is in agreement with the relation f(D) = f(B) from lattice calculations. |
| 学科主题 | Physics |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12679]  |
| 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 | Jin, HY,Dai, YB,Guo, XH,et al. Heavy meson decay constants to 1/m(Q)[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1995,24(4):453-468. |
| APA | Jin, HY,Dai, YB,Guo, XH,Huang, CS,&Dai, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1995).Heavy meson decay constants to 1/m(Q).COMMUNICATIONS IN THEORETICAL PHYSICS,24(4),453-468. |
| MLA | Jin, HY,et al."Heavy meson decay constants to 1/m(Q)".COMMUNICATIONS IN THEORETICAL PHYSICS 24.4(1995):453-468. |
入库方式： OAI收割
来源：理论物理研究所
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