Vacuum periodicity in the instanton angle, chiral perturbation theory, and fractional topological charge

Technical Report · Thu Jan 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6674956· OSTI ID:6674956

Palmer, W F; Pinsky, S S

Following Crewther, the methods of chiral perturbation theory and Dashen's theorem are applied to the QCD quark mass matrix. Stable domains of theta-vacua are found. The period of the system with respect to the instanton angle is 2..pi... It is concluded that non-integer topological charge is not required by chiral cymmetry breaking. An argument to the contrary by the present authors and by Crewther is refuted.

• Research Organization: Ohio State Univ., Columbus (USA). Dept. of Physics
• DOE Contract Number: AC02-76ER01545
• OSTI ID: 6674956
• Report Number(s): DOE/ER/01545-287; TRN: 81-004368
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM CHROMODYNAMICS
PERTURBATION THEORY
QUARKS
MASS
INSTANTONS
SU GROUPS
VACUUM STATES
ELEMENTARY PARTICLES
FIELD THEORIES
LIE GROUPS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUASI PARTICLES
SYMMETRY GROUPS
645400* - High Energy Physics- Field Theory