Axion string constraints

Journal Article · Mon Nov 28 04:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.2954· OSTI ID:6700501

Battye, R A; Shellard, E P.S. ^[1]

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1. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW (United Kingdom)

We study the production of cosmological axions in the standard scenario in which a global string network forms at the Peccei-Quinn phase transition. We make detailed calculations of the axions produced by string loops, comparing these with estimates of other contributions from long strings and domain walls. We delineate key uncertainties in string network evolution, the chief of which is the magnitude of radiative backreaction. We conclude that axions produced by these topological contributions provide the significant cosmological constraint on the symmetry breaking scale [ital f][sub [ital a]] and the axion mass [ital m][sub [ital a]].

• OSTI ID: 6700501
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:22; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYTICAL SOLUTION
AXIONS
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY DENSITY
EXTENDED PARTICLE MODEL
GOLDSTONE BOSONS
MASS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
QUARK MODEL
STRING MODELS
SYMMETRY BREAKING