QCD sum rule study for a possible charmed pentaquark Θ c(3250)
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
27/05/2014
27/05/2014
01/10/2013
|
| Resumo |
We use QCD sum rules to study the possible existence of a Θc(3250) charmed pentaquark. We consider the contributions of condensates up to dimension 12 and work at leading order in αs. We obtain mΘc=(3.29±0.13) GeV, compatible with the mass of the structure seen by BABAR Collaboration in the decay channel B-→p̄Σc++π-π-. The proposed state is compatible with a previous proposed pentaquark state in the anticharmed sector. © 2013 American Physical Society. |
| Identificador |
http://dx.doi.org/10.1103/PhysRevD.88.076001 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 88, n. 7, 2013. 1550-7998 1550-2368 http://hdl.handle.net/11449/76744 10.1103/PhysRevD.88.076001 WOS:000325169600006 2-s2.0-84885238071 2-s2.0-84885238071.pdf |
| Idioma(s) |
eng |
| Relação |
Physical Review D: Particles, Fields, Gravitation and Cosmology |
| Direitos |
closedAccess |
| Tipo |
info:eu-repo/semantics/article |
