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- Title
A dynamical mass and confinement in nucleon model.
- Authors
Jia, Duojie; Wan, Ruibin; Yu, Lianchun
- Abstract
A possible dynamical softening of the Chiral bag is studied in connection with the chiral quark model and the Nambu-Jona-Lasinio (NJL) model. It is demonstrated that the bag functions constructed by the pion degrees is able to confine quark through generation of the rising effective mass of valence quark due to the pion dressing and break chiral symmetry dynamically. The tendency of the bag functions toward the MIT bag is illustrated in the large-n limit for a solitonic configuration of the chiral field Un(r) for which U1(r) is the Skyrmion profile. The mass running with the length scale agrees with that of the NJL Model for n ≥ 2.
- Subjects
PARTICLES (Nuclear physics); CHIRALITY; QUARKS; PIONS; VALENCE quark; NAMBU-Jona-Lasinio model; SKYRME model; QUARK confinement
- Publication
International Journal of Modern Physics E: Nuclear Physics, 2014, Vol 23, Issue 6, p-1
- ISSN
0218-3013
- Publication type
Article
- DOI
10.1142/S0218301314600040