Artículos de revistas
The charmed pentaquark Θc(3250) from QCD sum rules.
Fecha
2014-01-22Registro en:
International Journal of Modern Physics: Conference Series, Singapore, v.26, p.1460109-1-5, 2013.
10.1142/S2010194514601094
Autor
Nielsen, Marina
Albuquerque, Raphael Moreira de
Lee, Su Houng
Institución
Resumen
We study, using the QCD sum rule framework, the possible existence of a charmed
pentaquark that we call Θc(3250). In the QCD side we work at leading order in αs and
consider condensates up to dimension 10. The mass obtained: mΘc = (3.21±0.13) GeV,
is compatible with the mass of the structure seen by BaBar Collaboration in the decay
channel B− → ￣p Σ++ c π−π−.