Heavy-quark symmetries in the light of nonperturbative QCD approaches
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/2011
|
Resumo |
We critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all motivated by Dyson-Schwinger equations studies of QCD. Along the way, we make new predictions for two effective nonphysical couplings: gDsDK = 24.1-1.6 +2.5 and gBsBK = 33.3 -3.7 +4.0. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. |
Identificador |
http://arxiv.org/abs/1202.0454 Proceedings of Science. 1824-8039 http://hdl.handle.net/11449/72821 2-s2.0-84882950018 2-s2.0-84882950018.pdf |
Idioma(s) |
eng |
Relação |
Proceedings of Science |
Direitos |
openAccess |
Palavras-Chave | #Decay constants #Effective coupling #Flavor symmetry #Form factors #Heavy-quark #Nonperturbative #Couplings #Green's function #High energy physics |
Tipo |
info:eu-repo/semantics/conferencePaper |