2014
DOI: 10.1007/jhep01(2014)141
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Beauty is more attractive: particle production andmoduli trapping with higher dimensional interaction

Abstract: Abstract:We study quantum effects on moduli dynamics arising from particle production near the enhanced symmetry point (ESP). We focus on non-renormalizable couplings between the moduli field and the field that becomes light at the ESP. Considering higher dimensional interaction, we find that particle production is significant in a large area, which is even larger than the area that is expected from a renormalizable interaction. It is possible to find this possibility from a trivial adiabatic condition; howeve… Show more

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Cited by 19 publications
(34 citation statements)
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“…(A.5) and (A.6) refers to the first order WKB mode functions χ WKB k = exp(iω k )/ √ 2ω k , which is needed to cancel a divergence in the effective potential (see e.g. [43,74]). In addition, we assume that the relaxion field is homogeneous in space, i.e.…”
Section: A Equations Of Motionmentioning
confidence: 99%
“…(A.5) and (A.6) refers to the first order WKB mode functions χ WKB k = exp(iω k )/ √ 2ω k , which is needed to cancel a divergence in the effective potential (see e.g. [43,74]). In addition, we assume that the relaxion field is homogeneous in space, i.e.…”
Section: A Equations Of Motionmentioning
confidence: 99%
“…Therefore, we assume for the reheating temperature T R ≪ m 0 < m η , which does not constitute an additional limiting factor. 17…”
Section: Conclusion and Discussionmentioning
confidence: 99%
“…In this paper, we have assumed that higher interactions are very small and negligible. Preheating with higher interactions is partially analyzed in Ref [17][18][19]13.…”
mentioning
confidence: 99%
“…This is a very encouraging result, for it suggests that out-of-equilibrium patches may be feasible candidates to become the seeds of large-angle CMB anomalies, thus offering an avenue to account for the latter without having to invoke an alternative scenario more unlikely that the very existence of anomalies. Yet another feature worth stressing is that one can expect to obtain H * τ t ≥ O(1) without having to impose that the χ field belongs to large GUT groups [60]. On the contrary, the expectation when χ belongs to large GUT groups is that H * τ t ≪ O(1), in which case the emergence of patches becomes a very unlikely event, as Fig.…”
Section: Beyond the Absorbing Barriermentioning
confidence: 99%