Partial restoration of chiral symmetry in the color flux tube
Abstract
Using the quark eigenmodes computed on the lattice with the overlapDirac operator, we investigate the spatial distribution of the chiral condensate around static color sources corresponding to quarkantiquark and threequark systems. A flux structure of chromo fields appears in the presence of such color charges. The magnitude of the chiral condensate is reduced inside the color flux, which implies partial restoration of chiral symmetry inside hadrons. Taking a static baryon source in a periodic box as a toy model of nuclear matter, we estimate the magnitude of the chiral symmetry restoration as a function of baryon matter density.
 Publication:

Physical Review D
 Pub Date:
 May 2015
 DOI:
 10.1103/PhysRevD.91.094501
 arXiv:
 arXiv:1502.04845
 Bibcode:
 2015PhRvD..91i4501I
 Keywords:

 12.38.Gc;
 11.30.Rd;
 12.38.Aw;
 Lattice QCD calculations;
 Chiral symmetries;
 General properties of QCD;
 High Energy Physics  Lattice
 EPrint:
 21 pages, 14 figures, published version in Phys. Rev. D