Y (3940) as a mixed charmonium-molecule state (2013)
- Authors:
- Autor USP: NIELSEN, MARINA - IF
- Unidade: IF
- Assunto: CROMODINÂMICA QUÂNTICA
- Language: Inglês
- Abstract: Using the QCD sum rules approach we study the mass and decay width of the channel J= ! for the Y (3940) state, assuming that it can be described by a mixed charmonium-molecule scalar state (Xc0)-(D D ) current with J P C = 0++ quantum numbers. For the mixing angle = (76:0 5:0) , we obtain the value MY = (3:95 0:11) GeV for the mass, which is in good agreement with the experimental mass of the Y (3940) state. For the decay width into the channel Y ! J= ! we find the value ``tau´IND.`gama´´->J= != (1:7 0:6) MeV, which is also compatible with the experimental data. We thus conclude that the present description of the Y (3940) as a mixed charmonium-molecule state is a possible scenario to explain the structure of this state.
- Imprenta:
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ABNT
ALBUQUERQUE, Raphael Moreira de et al. Y (3940) as a mixed charmonium-molecule state. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1311.6411v2.pdf. Acesso em: 02 maio 2024. , 2013 -
APA
Albuquerque, R. M. de, Dias, J. M., Nielsen, M., & Zanetti, C. M. (2013). Y (3940) as a mixed charmonium-molecule state. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1311.6411v2.pdf -
NLM
Albuquerque RM de, Dias JM, Nielsen M, Zanetti CM. Y (3940) as a mixed charmonium-molecule state [Internet]. 2013 ;[citado 2024 maio 02 ] Available from: http://lanl.arxiv.org/pdf/1311.6411v2.pdf -
Vancouver
Albuquerque RM de, Dias JM, Nielsen M, Zanetti CM. Y (3940) as a mixed charmonium-molecule state [Internet]. 2013 ;[citado 2024 maio 02 ] Available from: http://lanl.arxiv.org/pdf/1311.6411v2.pdf - Qcd sum rules for 'SIGMA' hyperons in nuclear matter
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