Spontaneous violation of chiral symmetry in QCD vacuum is the origin of baryon masses and determines baryon magnetic moments and their other static properties

Abstract

A short review is presented of the spontaneous violation of chiral symmetry in QCD vacuum. It is demonstrated, that this phenomenon is the origin of baryon masses in QCD. The value of nucleon mass is calculated as well as the masses of hyperons and some baryonic resonances and expressed mainly through the values of quark condensates -- $<0\mid \bar{q}q\mid 0>,q=u,d,s$ -- the vacuum expectation values (v.e.v.) of quark field. The concept of vacuum expectation values induced by external fields is introduced. It is demonstrated that such v.e.v. induced by static electromagnetic field results in quark condensate magnetic susceptibility, which plays the main role in determination of baryon magnetic moments. The magnetic moments of proton, neutron and hyperons are calculated. The results of calculation of baryon octet $\beta$-decay constants are also presented.

13 pades, 5 figures. Dedicated to 85-birthday of acad. S.T.Belyaev. To be published in Phys.At.Nucl. Few references are corrected

References in corpus (5)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• QCD at Low Energies
• Axial anomaly: the modern status
• Nucleon QCD sum rules with the radiative corrections

Cited by in corpus (4)

• A New Approach to Physics of Nuclei
• Zero mode solutions of quark Dirac equations in QCD as the sources of chirality violating condensates
• Charm, Bottom, Strange Baryon Masses Using QCD Sum Rules
• Chirality violating condensates in QCD and their connection with zero mode solutions of quark Dirac equations