Bifurcation of the Quark Selfenergy: Infrared and Ultraviolet Cutoffs

Atkinson, D.; Johnson, P.W.

doi:10.1103/PhysRevD.35.1943

Bifurcation of the Quark Selfenergy: Infrared and Ultraviolet Cutoffs

D. Atkinson
(
- Groningen U.
)
,
P.W. Johnson
(
- Groningen U.
)

Jul, 1986

11 pages

Published in:

Phys.Rev.D 35 (1987) 1943

DOI:

10.1103/PhysRevD.35.1943

Report number:

Print-86-1095 (GRONINGEN)

View in:

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Abstract: (APS)

The quark self-energy in massless QCD is studied in the approximation that both the quark-gluon vertex and the gluon propagator remain bare. It is shown that chiral invariance is not spontaneously broken at a critical coupling λc>0, unless both infrared and ultraviolet cutoffs are introduced.

QUANTUM CHROMODYNAMICS
FIELD THEORY: MASSLESS
MASSLESS: FIELD THEORY
QUARK: PROPAGATOR
SYMMETRY: CHIRAL
SPONTANEOUS SYMMETRY BREAKING
RENORMALIZATION: REGULARIZATION
DYSON-SCHWINGER EQUATION

References(4)

Figures(0)

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(
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)

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•
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