Study of the D*ρ system using QCD sum rules

Journal Article · Tue Nov 11 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4901765· OSTI ID:22390500

Torres, A. Martínez; Khemchandani, K. P.; Nielsen, M.; Navarra, F. S. ^[1]; Oset, E. ^[2]

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1. Instituto de Física, Universidade de São Paulo, C. P. 66318, 05389-970 São Paulo, SP (Brazil)
2. Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Apartado 22085, 46071 Valencia (Spain)

In this proceeding we present a study of the D*ρ 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{sub 2}{sup *} (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.

• OSTI ID: 22390500
• Journal Information: AIP Conference Proceedings, Vol. 1625, Issue 1; Conference: 36. Brazilian Workshop on Nuclear Physics, Sao Sebastiao, SP (Brazil), 1-5 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D MESONS
D*-2010 MESONS
D*2-2460 MESONS
ISOSPIN
MEV RANGE
PARITY
QUANTUM CHROMODYNAMICS
REST MASS
RHO-770 MESONS
SPIN
SUM RULES