Cosmological constraints on pseudo Nambu-Goldstone bosons

Details Cosmological constraints on pseudo Nambu-Goldstone bosons Cosmological constraints on pseudo Nambu-Goldstone bosons

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvd..45.2674f&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 45, Issue 8, 15 April 1992, pp.2674-2684

Mathematics

Logic

10

Particle-Theory And Field-Theory Models Of The Early Universe, Miscellaneous Theoretical Ideas And Models, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages

Scientific paper

Particle-physics models with pseudo Nambu-Goldstone bosons (PNGB's) are characterized by two mass scales: a global spontaneous-symmetry-breaking scale f and a soft (explicit) symmetry-breaking scale Λ. We investigate general model-insensitive constraints on this two-dimensional parameter space arising from the cosmological and astrophysical effects of PNGB's. In particular, we study constraints arising from vacuum misalignment and thermal production of PNGB's, topological defects, and the cosmological effects of PNGB decay products, as well as astrophysical constraints from stellar PNGB emission. Bounds on the Peccei-Quinn axion scale, 1010 GeV<~fPQ<~1010-1012 GeV, emerge as a special case, where the soft breaking scale is fixed at ΛQCD~=100 MeV.

Affiliated with

Also associated with

No associations

Rating

Cosmological constraints on pseudo Nambu-Goldstone bosons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmological constraints on pseudo Nambu-Goldstone bosons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological constraints on pseudo Nambu-Goldstone bosons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1740279