Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-10-18
Phys.Rev. D56 (1997) 6155-6165
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, TeX, no figures. Submitted to Physical Review D
Scientific paper
10.1103/PhysRevD.56.6155
We calculate the baryon asymmetry created by the decay of a pseudo Nambu-Goldstone boson whose interactions violate baryon number conservation. Our results are in disagreement with previous results in the original spontaneous baryogenesis models for the asymmetry produced by the decay of an oscillating scalar field with B number violating derivative couplings; we find that the net baryon number density is proportional to $\th_i^3$, where $\th_i$ is the amplitude of the PNGB-field in natural inflation at the onset of reheating. We also discuss our disagreement with the interpretation of $\dot\theta$ as an effective chemical potential for baryon number in spontaneous baryogenesis models. While our calculation of the asymmetry is carried out in the context of natural inflation our approach is generally valid for baryogenesis models using decaying classical fields. In the Appendices, we include a complete derivation of the number density of particles produced by the decay of a classical scalar field; this number density is proportional to the integral over momenta of the one pair production amplitude.
Dolgov Alexandre
Freese Katherine
Rangarajan Raghavan
Srednicki Mark
No associations
LandOfFree
Baryogenesis During Reheating in Natural Inflation and Comments on Spontaneous Baryogenesis 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 Baryogenesis During Reheating in Natural Inflation and Comments on Spontaneous Baryogenesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Baryogenesis During Reheating in Natural Inflation and Comments on Spontaneous Baryogenesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-206541