Relativistic five-quark equations and negative parity pentaquarks

Journal Article · Fri Jul 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.016002· OSTI ID:20711082

Gerasyuta, S M ^[1]; Kochkin, V I ^[1]

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

The relativistic five-quark equations are found in the framework of the dispersion relation technique. The solutions of these equations using the method based on the extraction of the leading singularities of the amplitudes are obtained. The five-quark amplitudes for the low-lying pentaquarks including the u, d, s quarks are calculated. The poles of these amplitudes determine the masses of the negative parity pentaquarks with I=0,1 and J{sup P}=(3/2){sup -},(5/2){sup -}. The mass of the lowest pentaquark with I=0 and J{sup P}=(3/2){sup -} is equal to 1514 MeV.

• OSTI ID: 20711082
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevD.72.016002; (c) 2005 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
D QUARKS
DISPERSION RELATIONS
MATHEMATICAL SOLUTIONS
MEV RANGE
PARITY
RELATIVISTIC RANGE
REST MASS
S QUARKS
SINGULARITY
U QUARKS