Excited (70,L{sup +}) baryons in a relativistic quark model

Journal Article · Sat Dec 01 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.116004· OSTI ID:21023968

Gerasyuta, S M; Matskevich, E E ^[1]

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1. Department of Theoretical Physics, St. Petersburg State University, 198904, St. Petersburg (Russian Federation) and Department of Physics, LTA, 194021, St. Petersburg (Russian Federation)

The masses of positive parity (70,0{sup +}) and (70,2{sup +}) nonstrange and strange baryons are calculated in the relativistic quark model. The relativistic three-quark equations of the (70,L{sup +}) multiplets are found in the framework of the dispersion relation technique. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitude are obtained. The calculated mass values of the (70,L{sup +}) multiplets are in good agreement with the experimental ones.

• OSTI ID: 21023968
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 11; Other Information: DOI: 10.1103/PhysRevD.76.116004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
DISPERSION RELATIONS
HYPERONS
MATHEMATICAL SOLUTIONS
MULTIPLETS
PARITY
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
RELATIVISTIC RANGE
SINGULARITY