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http://acervodigital.unesp.br/handle/11449/72821- Título:
- Heavy-quark symmetries in the light of nonperturbative QCD approaches
- Universidade Cruzeiro do Sul
- Universidade Estadual Paulista (UNESP)
- Argonne National Laboratory
- Illinois Institute of Technology
- Joint Institute for Nuclear Research
- 1824-8039
- 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.
- 1-Dez-2011
- Proceedings of Science.
- Decay constants
- Effective coupling
- Flavor symmetry
- Form factors
- Heavy-quark
- Nonperturbative
- Couplings
- Green's function
- High energy physics
- http://arxiv.org/abs/1202.0454
- Acesso aberto
- outro
- http://repositorio.unesp.br/handle/11449/72821
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