| Name: | Kazuyuki Furuuchi |
| Affiliation: | Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education |
| Conference ID : | ASI2024_754 |
| Title : | Particle productions during inflation: Extensions |
| Authors : | Kazuyuki Furuuchi and Suvedha Suresh Naik |
| Authors Affiliation: | Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India
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| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | Inflation models based on higher-dimensional gauge theories are promising large-field slow-roll inflation models. Minimal gauge couplings to matter fields naturally lead to rapid particle productions during inflation [Furuuchi 2016]. The particle productions during inflation may create features in the primordial density perturbation. The feature in the power spectrum of the primordial density perturbation due to the particle productions during inflation has been analytically calculated in [Pearce et al. 2017] in one-loop approximation. The observational constraints on the features in the primordial power spectrum based on this calculation have been studied in [Naik, Furuuchi, Chingangbam 2022; Naik, Chingangbam, Furuuchi 2023]. The calculation of [Pearce et al. 2017] was done for the particle productions through a four-point interaction of the inflaton and a scalar field. In this work, we extend this calculation to the cases with different types of particles and different interaction terms. Implications to cosmological observations will be briefly discussed. |
