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Title: Complex Hybrid Inflation and Baryogenesis

Abstract

We propose a hybrid inflation model with a complex waterfall field which contains an interaction term that breaks the U(1) global symmetry associated with the waterfall field charge. We show that the asymmetric evolution of the real and imaginary parts of the complex field during the phase transition at the end of inflation translates into a charge asymmetry. The latter strongly depends on the vacuum expectation value of the waterfall field, which is well constrained by diverse cosmological observations.

Authors:
; ;  [1]
  1. Instituto de Fisica de la Universidad de Guanajuato, C.P. 37150, Leon, Guanajuato (Mexico)
Publication Date:
OSTI Identifier:
20951247
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 16; Other Information: DOI: 10.1103/PhysRevLett.98.161302; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BARYONS; EVOLUTION; EXPECTATION VALUE; INFLATIONARY UNIVERSE; PARTICLE PRODUCTION; PHASE TRANSFORMATIONS; SYMMETRY; U-1 GROUPS

Citation Formats

Delepine, David, Martinez, Carlos, and Urena-Lopez, L. Arturo. Complex Hybrid Inflation and Baryogenesis. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.161302.
Delepine, David, Martinez, Carlos, & Urena-Lopez, L. Arturo. Complex Hybrid Inflation and Baryogenesis. United States. doi:10.1103/PHYSREVLETT.98.161302.
Delepine, David, Martinez, Carlos, and Urena-Lopez, L. Arturo. Fri . "Complex Hybrid Inflation and Baryogenesis". United States. doi:10.1103/PHYSREVLETT.98.161302.
@article{osti_20951247,
title = {Complex Hybrid Inflation and Baryogenesis},
author = {Delepine, David and Martinez, Carlos and Urena-Lopez, L. Arturo},
abstractNote = {We propose a hybrid inflation model with a complex waterfall field which contains an interaction term that breaks the U(1) global symmetry associated with the waterfall field charge. We show that the asymmetric evolution of the real and imaginary parts of the complex field during the phase transition at the end of inflation translates into a charge asymmetry. The latter strongly depends on the vacuum expectation value of the waterfall field, which is well constrained by diverse cosmological observations.},
doi = {10.1103/PHYSREVLETT.98.161302},
journal = {Physical Review Letters},
number = 16,
volume = 98,
place = {United States},
year = {Fri Apr 20 00:00:00 EDT 2007},
month = {Fri Apr 20 00:00:00 EDT 2007}
}