THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY
文献类型：期刊论文
| 作者 | HUANG, CS ; DAI, YB; GUO, XH; DAI, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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| 刊名 | NUCLEAR PHYSICS B
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| 出版日期 | 1994 |
| 卷号 | 412期号:40910页码:277-301 |
| 关键词 | Not-equal-infinity Lambda-b Decays Mesons |
| ISSN号 | 0550-3213 |
| 英文摘要 | The suppressed LAMBDA(b) --> SIGMA(c) decay form factors are analyzed using the heavy quark effective theory (HQET) to second order power corrections. We find that to order 1/m(c) and 1/m(b), four form factors are needed to describe these decays while to order 1/m(c)2, 1/m(b)2 and 1/m(c)m(b), 26 more form factors are introduced. Our result for the 1/mc contribution is at variance with the previous result. It is shown that at the zero-recoil point 1/m(c)2 and 1/m(c)m(b) terms are the leading ones contributing to LAMBDA(b) --> SIGMA(c) and LAMBDA(b) --> SIGMA(c) respectively. We also give a rough estimate for the decay width LAMBDA(b) --> SIGMA(c)lnu. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/11959]  |
| 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 | HUANG, CS,DAI, YB,GUO, XH,et al. THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY[J]. NUCLEAR PHYSICS B,1994,412(40910):277-301. |
| APA | HUANG, CS,DAI, YB,GUO, XH,&DAI, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1994).THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY.NUCLEAR PHYSICS B,412(40910),277-301. |
| MLA | HUANG, CS,et al."THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY".NUCLEAR PHYSICS B 412.40910(1994):277-301. |
入库方式： OAI收割
来源：理论物理研究所
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