低标度膨胀与重曲率子立即衰变
高能物理 - 唯象学
2009-04-08 v5 天体物理学
摘要
热膨胀时期的结束，由与曲率子耦合的平坦场滚动驱动，导致曲率子质量与衰变率在曲率子仍被冻结时急剧增加。表明，如果这种增量足够使曲率子立即衰变，则通过更自然的平坦-曲率子耦合常数 \lambda (10^{-10} \lsim \lambda \lsim 10^{-4}) 和曲率子裸质量 m_\sigma (m_\sigma \lsim 1 GeV) 达到低标度膨胀，哈勃参数 H_\ast \sim 10^3 GeV。
引用
@article{arxiv.hep-ph/0411120,
title = {Low scale inflation and the immediate heavy curvaton decay},
author = {Yeinzon Rodriguez},
journal= {arXiv preprint arXiv:hep-ph/0411120},
year = {2009}
}
备注
Latex file in World Scientific style. 18 pages, 3 figures. v4: Two new sections added to make the paper self-contained. Two new figures sketching the evolution of the fluids involved in the model. References added. Conclusions unchanged. v5: Version published in Modern Physics Letters A