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Study of the D* rho system using QCD sum rules

Author:
Martinez Torres, A.  Khemchandani, K. P.  Nielsen, M.  Navarra, F. S.  Oset, E.  


Journal:
XXXVI BRAZILIAN WORKSHOP ON NUCLEAR PHYSICS


Issue Date:
2014


Abstract(summary):

In this proceeding we present a study of the D* rho system made by using the method of QCD sum rules. Considering isospin and spin projectors, we investigate the different configurations and obtain three D* mesons with isospin I = 1/2, spin S = 0, 1, 2 and with masses 2500 +/- 67 MeV, 2523 +/- 60 MeV, and 2439 +/- 119 MeV, respectively. The last state can be related to D*(2) (2460) (spin 2) listed by the Particle Data Group, while one of the first two might be associated with D*(2640), whose spin-parity is unknown. In the case of I = 3/2 we also find evidences of three states with spin 0, 1 and 2, respectively, with masses 2467 +/- 82 MeV, 2420 +/- 128 MeV, and 2550 +/- 56 MeV.


Page:
59---65


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