A study of the effects of preheating
I. I. Tkachev
Abstract
We review results of a numerical study of resonant inflaton decay in a wide range of realistic models and parameters. Wide enough parametric resonance can withstand the expansion of the Universe, though account for the expansion is very important for determining precisely how wide it should be. For example, the effective production of particles with mass ten times that of the inflaton requires very large values of the resonance parameter q, q > 108. For these large q, the maximal size of produced fluctuations is significantly suppressed by back reaction, < X2 > 10-10 MPl2. We discuss some physical implications of our results.
Create a lesson
Related papers
Chiral anomalies in two dimensions
Clément Liesse, Cypris Plantier, Christopher Smith
Renormalization and Factorization Scale-Invariant Predictions for the e+e- J/ψ+ηc process at B factories
Si-Qi Gong, Ting Sun, Sheng-Quan Wang et al.
Probing the Spatial Coherence of Chiral-Imbalance Fluctuations with Hyperon Spin Correlations
Guangyu Zheng, Zilin Yuan, Mei Huang et al.
Unitary KK and Kπ inputs for an amplitude analysis of the D+ K-K+π+ decay
Felipe C. L. Lopes, Patrícia C. Magalhães, Gustavo A. Loachamin O
Next-to-leading order QCD corrections to fully charm tetraquark radiative decays
Xiang Li, Yan-Qing Ma, Bo-Xuan Shi et al.
DAMA/LIBRA dark matter signal: a global analysis
Matti Heikinheimo, Sebastian Sassi, Alex Stendahl et al.