A Light Dilaton in Gauge Theories?

Holdom, Bob; Terning, John

doi:10.1016/0370-2693(87)91109-9

A Light Dilaton in Gauge Theories?

Bob Holdom
(
- Toronto U.
)
,
John Terning
(
- Toronto U.
)

Oct, 1986

5 pages

Published in:

Phys.Lett.B 187 (1987) 357-361

Published: 1987

DOI:

10.1016/0370-2693(87)91109-9

Report number:

UTPT-86-21

View in:

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Abstract: (Elsevier)

We study gauge theories having a slowly varying running coupling and chiral symmetry breaking. It has been suggested that such theories contain a light dilaton, a pseudo-Goldstone boson associated with approximate scale invariance. We calculate its mass by studying the scaling properties of the effective action describing chiral symmetry breaking. We also consider the effect of a physical high energy cutoff as motivated in a technicolor context. Our results indicate that a light dilaton is unlikely.

GAUGE FIELD THEORY: ASYMPTOTIC FREEDOM
MODEL: TECHNICOLOR
POSTULATED PARTICLE: GOLDSTONE PARTICLE
POSTULATED PARTICLE: DILATON
MASS: DILATON
DILATON: MASS
RENORMALIZATION: BETA FUNCTION
SYMMETRY BREAKING: CHIRAL
SCALING: VIOLATION
FIELD THEORY: EFFECTIVE ACTION

References(14)

Figures(0)

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