Albuquerque, Raphael M. [UNESP]Lee, Su HoungNielsen, Marina2014-05-272014-05-272013-10-01Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 88, n. 7, 2013.1550-79981550-2368http://hdl.handle.net/11449/76744We 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.engArtigo10.1103/PhysRevD.88.076001WOS:000325169600006Acesso restrito2-s2.0-848852380712-s2.0-84885238071.pdf