Gauge non-singlet inflation in SUSY GUTs
Gauge non-singlet inflation in SUSY GUTs
复制标题
衡量 SUSY GUT 中的非单重态膨胀
DOI:
10.1007/jhep08(2010)100
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发表时间:
2010
影响因子:
5.4
通讯作者:
Antusch S
中科院分区:
文献类型:
--
作者:
Antusch S
We explore the novel possibility that the inflaton responsible for cosmological inflation is a gauge non-singlet in supersymmetric (SUSY) Grand Unified Theories (GUTs). For definiteness we consider SUSY hybrid inflation where we show that the scalar components of gauge non-singlet superfields, together with fields in conjugate representations, may form a D-flat direction suitable for inflation. We apply these ideas to SUSY models with an Abelian gauge group, a Pati-Salam gauge group and finally Grand Unified Theories based on SO (10) where the scalar components of the matter superfields in the 16s may combine with a singleto form the inflaton, with the right-handed sneutrino direction providing a possible viable trajectory for inflation. Assuming sneutrino inflation, we calculate the one-loop Coleman-Weinberg corrections and the two-loop corrections from gauge interactions giving rise to the “gauge η-problem” and show that both corrections do not spoil inflation, and the monopole problem can be resolved. The usual η-problem arising from supergravity may also be resolved using a Heisenberg symmetry.
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