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Title: Spontaneously broken parity and consistent cosmology with transitory domain walls

Abstract

Domain wall structure which may form in theories with spontaneously broken parity is generically in conflict with standard cosmology. It has been argued that Planck scale suppressed effects can be sufficient for removing such domain walls. We study this possibility for three specific evolution scenarios for the domain walls, with evolution during a radiation dominated era, during a matter dominated era, and that accompanied by weak inflation. We determine the operators permitted by the supergravity formalism and find that the field content introduced to achieve desired spontaneous parity breaking makes possible Planck scale suppressed terms which can potentially remove the domain walls safely. However, the parity breaking scale, equivalently the Majorana mass scale M{sub R} of the right-handed neutrino, does get constrained in some of the cases, notably for the matter dominated evolution case which would be generic to string theory inspired models, giving rise to moduli fields. One left-right symmetric model with only triplets and bidoublets is found to be more constrained than another admitting a gauge singlet.

Authors:
;  [1]
  1. Indian Institute of Technology, Bombay, Mumbai 400076 (India) and Indian Institute of Technology, Gandhinagar, Ahmedabad 382424 (India)
Publication Date:
OSTI Identifier:
21409337
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevD.81.045010; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMOLOGY; MAJORANA THEORY; MASS; NEUTRINOS; PARITY; QUANTUM WELLS; STRING MODELS; STRING THEORY; SUPERGRAVITY; SYMMETRY; SYMMETRY BREAKING; TRIPLETS; COMPOSITE MODELS; ELEMENTARY PARTICLES; EXTENDED PARTICLE MODEL; FERMIONS; FIELD THEORIES; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; M-THEORY; MULTIPLETS; NANOSTRUCTURES; PARTICLE MODELS; PARTICLE PROPERTIES; QUARK MODEL; UNIFIED-FIELD THEORIES

Citation Formats

Mishra, Sasmita, and Yajnik, Urjit A. Spontaneously broken parity and consistent cosmology with transitory domain walls. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.045010.
Mishra, Sasmita, & Yajnik, Urjit A. Spontaneously broken parity and consistent cosmology with transitory domain walls. United States. https://doi.org/10.1103/PHYSREVD.81.045010
Mishra, Sasmita, and Yajnik, Urjit A. 2010. "Spontaneously broken parity and consistent cosmology with transitory domain walls". United States. https://doi.org/10.1103/PHYSREVD.81.045010.
@article{osti_21409337,
title = {Spontaneously broken parity and consistent cosmology with transitory domain walls},
author = {Mishra, Sasmita and Yajnik, Urjit A},
abstractNote = {Domain wall structure which may form in theories with spontaneously broken parity is generically in conflict with standard cosmology. It has been argued that Planck scale suppressed effects can be sufficient for removing such domain walls. We study this possibility for three specific evolution scenarios for the domain walls, with evolution during a radiation dominated era, during a matter dominated era, and that accompanied by weak inflation. We determine the operators permitted by the supergravity formalism and find that the field content introduced to achieve desired spontaneous parity breaking makes possible Planck scale suppressed terms which can potentially remove the domain walls safely. However, the parity breaking scale, equivalently the Majorana mass scale M{sub R} of the right-handed neutrino, does get constrained in some of the cases, notably for the matter dominated evolution case which would be generic to string theory inspired models, giving rise to moduli fields. One left-right symmetric model with only triplets and bidoublets is found to be more constrained than another admitting a gauge singlet.},
doi = {10.1103/PHYSREVD.81.045010},
url = {https://www.osti.gov/biblio/21409337}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 4,
volume = 81,
place = {United States},
year = {Mon Feb 15 00:00:00 EST 2010},
month = {Mon Feb 15 00:00:00 EST 2010}
}