Chiral symmetry breaking and vacuum polarization in a bag

Details Chiral symmetry breaking and vacuum polarization in a bag Chiral symmetry breaking and vacuum polarization in a bag

2006-05-31

arxiv.org/abs/hep-ph/0606001v1

Phys.Rev.D74:114003,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.74.114003

We study the effects of a finite quark mass in the hedgehog configuration in the two phase chiral bag model. We discuss the chiral properties, such as the fractional baryon number and the chiral Casimir energy, by using the Debye expansion for the analytical calculation and the Strutinsky's smearing method for the numerical computation. It is shown that the fractional baryon number carried by massive quarks in the vacuum is canceled by that in the meson sector. A finite term of the chiral Casimir energy is obtained with subtraction of the logarithmic divergence term.

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