Understanding the flavor symmetry breaking and nucleon flavor-spin structure within the chiral quark model

Journal Article · Tue May 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.094018· OSTI ID:21020490

Zhan, Shu; Xiaolin, Chen; Weizhen, Deng ^[1]

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1. Department of Physics, Peking University, Beijing 100871 (China)

In {chi}QM, a quark can emit Goldstone bosons. The flavor symmetry breaking in the Goldstone boson emission process is used to interpret the nucleon flavor-spin structure. In this paper, we study the inner structure of constituent quarks implied in {chi}QM caused by the Goldstone boson emission process in nucleon. From a simplified model Hamiltonian derived from {chi}QM, the intrinsic wave functions of constituent quarks are determined. Then the obtained transition probabilities of the emission of Goldstone boson from a quark can give a reasonable interpretation to the flavor symmetry breaking in nucleon flavor-spin structure.

• OSTI ID: 21020490
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 9; Other Information: DOI: 10.1103/PhysRevD.75.094018; (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
CHIRALITY
FLAVOR MODEL
GOLDSTONE BOSONS
HAMILTONIANS
NUCLEONS
PARTICLE STRUCTURE
PROBABILITY
QUARK MODEL
QUARKS
SPIN
SYMMETRY BREAKING
WAVE FUNCTIONS