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Title: Leptogenesis from Gravity Waves in Models of Inflation

Abstract

We present a new mechanism for creating the observed cosmic matter-antimatter asymmetry which satisfies all three Sakharov conditions from one common thread, gravitational waves. We generate lepton number through the gravitational anomaly in the lepton number current. The source term comes from elliptically polarized gravity waves that are produced during inflation if the inflaton field contains a CP-odd component. The amount of matter asymmetry generated in our model can be of realistic size for the parameters within the range of some inflationary scenarios and grand unified theories.

Authors:
; ;  [1]
  1. Stanford Linear Accelerator Center, Post Office Box 20450, Stanford, California 94309 (United States) and Department of Physics, Stanford University, 382 via Pueblo Mall, Stanford California 94305-4060 (United States)
Publication Date:
OSTI Identifier:
20778721
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevLett.96.081301; (c) 2006 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; ANTIMATTER; ASYMMETRY; COSMOLOGY; CP INVARIANCE; GRAND UNIFIED THEORY; GRAVITATIONAL WAVES; GRAVITY WAVES; INFLATIONARY UNIVERSE; LEPTON NUMBER

Citation Formats

Alexander, Stephon H. S., Peskin, Michael E., and Sheikh-Jabbari, M.M. Leptogenesis from Gravity Waves in Models of Inflation. United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.96.0.
Alexander, Stephon H. S., Peskin, Michael E., & Sheikh-Jabbari, M.M. Leptogenesis from Gravity Waves in Models of Inflation. United States. doi:10.1103/PHYSREVLETT.96.0.
Alexander, Stephon H. S., Peskin, Michael E., and Sheikh-Jabbari, M.M. Fri . "Leptogenesis from Gravity Waves in Models of Inflation". United States. doi:10.1103/PHYSREVLETT.96.0.
@article{osti_20778721,
title = {Leptogenesis from Gravity Waves in Models of Inflation},
author = {Alexander, Stephon H. S. and Peskin, Michael E. and Sheikh-Jabbari, M.M.},
abstractNote = {We present a new mechanism for creating the observed cosmic matter-antimatter asymmetry which satisfies all three Sakharov conditions from one common thread, gravitational waves. We generate lepton number through the gravitational anomaly in the lepton number current. The source term comes from elliptically polarized gravity waves that are produced during inflation if the inflaton field contains a CP-odd component. The amount of matter asymmetry generated in our model can be of realistic size for the parameters within the range of some inflationary scenarios and grand unified theories.},
doi = {10.1103/PHYSREVLETT.96.0},
journal = {Physical Review Letters},
number = 8,
volume = 96,
place = {United States},
year = {Fri Mar 03 00:00:00 EST 2006},
month = {Fri Mar 03 00:00:00 EST 2006}
}