Goldstone bosons in the Appelquist-Terning extended technicolor model

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.3969· OSTI ID:6588542

Balaji, B ^[1]

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1. Physics Department, Boston University, Boston, Massachusetts 02215 (United States)

It is demonstrated that the extended technicolor model proposed recently by Appelquist and Terning has a pair of potentially light U(1) Goldstone bosons coupling to ordinary matter with strength 2[ital m][sub [ital f]]/[ital F][sub [pi]], where [ital m][sub [ital f]] is the mass of the fermion and [ital F][sub [pi]][approx]125 GeV. These Goldstone bosons could get a mass if the spontaneously broken U(1) symmetries are also explicitly broken, by physics beyond that specified in the model. An attempt to break these symmetries by embedding the model into a larger gauge group seems to be inadequate. The problem is because there are too many representations and there is a mismatch between the number of condensates and the number of gauge symmetries broken.

• DOE Contract Number: FG02-91ER40676
• OSTI ID: 6588542
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:7; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

662110 -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662210* -- Specific Theories & Interaction Models
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COLOR MODEL
COMPOSITE MODELS
CONDENSATES
COUPLING
ELEMENTARY PARTICLES
GAUGE INVARIANCE
GOLDSTONE BOSONS
INVARIANCE PRINCIPLES
LIE GROUPS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUARK MODEL
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS