Strong D* -> D pi and B* -> B pi couplings
文献类型：期刊论文
| 作者 | El-Bennich, B ; Ivanov, MA ; Roberts, CD |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:2页码:25205 |
| 关键词 | ELECTROMAGNETIC FORM-FACTORS DYSON-SCHWINGER EQUATIONS HADRON PHYSICS HEAVY LIGHT QCD |
| ISSN号 | 0556-2813 |
| 通讯作者 | El-Bennich, B (reprint author), Univ Cruzeiro Sul, Lab Fis Teor & Computacao Cient, Rua Galvao Bueno 868, BR-01506000 Sao Paulo, Brazil. |
| 英文摘要 | We compute g(D*D pi) and g(B*B pi) using a framework in which all elements are constrained by Dyson-Schwinger equation studies of QCD and therefore incorporates a consistent, direct, and simultaneous description of light and heavy quarks and the states they may constitute. We link these couplings with the heavy-light-meson leptonic decay constants and thereby obtain g(D*D pi) = 15.9(-1.0)(+2.1) and g(B*B pi) = 30.0(-1.4)(+3.2). From the latter, we infer (g) over cap (B) = 0.37(-0.02)(+0.04). A comparison between g(D*D pi) and g(B*B pi) indicates that when the c quark is a system's heaviest constituent, Lambda(QCD)/m(c)-corrections are not under good control. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Fundacao de Amparo a Pesquisa do Estado de Sao Paulo [2009/51296-1, 2010/05772-3]; Russian Fund for Basic Research [10-02-00368-a]; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevC.83.025205 |
| 语种 | 英语 |
| WOS记录号 | WOS:000287367900007 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14410]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | El-Bennich, B,Ivanov, MA,Roberts, CD. Strong D* -> D pi and B* -> B pi couplings[J]. PHYSICAL REVIEW C,2011,83(2):25205. |
| APA | El-Bennich, B,Ivanov, MA,&Roberts, CD.(2011).Strong D* -> D pi and B* -> B pi couplings.PHYSICAL REVIEW C,83(2),25205. |
| MLA | El-Bennich, B,et al."Strong D* -> D pi and B* -> B pi couplings".PHYSICAL REVIEW C 83.2(2011):25205. |
入库方式： OAI收割
来源：理论物理研究所
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