2006/11/30 by Shigehiro Yasui, S. Yasui, Atsushi Hosaka +3
Physics and Astronomy · #Baryon #Black Holes and Theoretical Physics #Bottom quark #Casimir effect #Chiral perturbation theory #Chiral symmetry breaking #High-Energy Particle Collisions Research #Lattice QCD #Meson #Nambu–Jona-Lasinio model #Particle physics #Physics #Pseudoscalar #QCD vacuum #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quark #Top quark #Top quark condensate #hep-ph
paper · pdf · doi:10.1103/physrevd.77.054007
published as Phys.Rev.D77:054007,2008
arxiv created 2007/08/17 · openalex publication_date 2008/03/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We discuss the quark condensate of the vacuum inside the baryon. We analyze the 1+1-dimensional chiral bag in analogy with the realistic 1+3-dimensional one. The Nambu--Jona-Lasinio (NJL) type interaction is used to investigate the quark condensate in the chiral bag. Considering the strong meson-quark coupling, we solve the mean field solution to the scalar and pseudoscalar channels. Extracting the finite values of the chiral Casimir energy and the quark condensate by proper regularization, the resulting self-consistent equation allows a generation of a finite dynamical quark mass inside the bag.