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El-Bennich, B; Ivanov, MA; Roberts, CD; El-Bennich, B (reprint author), Univ Cruzeiro Sul, Lab Fis Teor & Computacao Cient, Rua Galvao Bueno 868, BR-01506000 Sao Paulo, Brazil.
Strong D* -> D pi and B* -> B pi couplings
Source PublicationPHYSICAL REVIEW C
Language英语
KeywordElectromagnetic Form-factors Dyson-schwinger Equations Hadron Physics Heavy Light Qcd
AbstractWe 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.
2011
ISSN0556-2813
Volume83Issue:2Pages:25205
Subject AreaPhysics
Indexed BySCI
Funding OrganizationFundacao 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] ; 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] ; 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] ; 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]
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14410
Collection理论物理所科研产出_SCI论文
Corresponding AuthorEl-Bennich, B (reprint author), Univ Cruzeiro Sul, Lab Fis Teor & Computacao Cient, Rua Galvao Bueno 868, BR-01506000 Sao Paulo, Brazil.
Recommended Citation
GB/T 7714
El-Bennich, B,Ivanov, MA,Roberts, CD,et al. 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,&El-Bennich, B .(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.
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