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Title: Gravitational waves from domain walls in the next-to-minimal supersymmetric standard model

The next-to-minimal supersymmetric standard model predicts the formation of domain walls due to the spontaneous breaking of the discrete Z{sub 3}-symmetry at the electroweak phase transition, and they collapse before the epoch of big bang nucleosynthesis if there exists a small bias term in the potential which explicitly breaks the discrete symmetry. Signatures of gravitational waves produced from these unstable domain walls are estimated and their parameter dependence is investigated. It is shown that the amplitude of gravitational waves becomes generically large in the decoupling limit, and that their frequency is low enough to be probed in future pulsar timing observations.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Center for Theoretical Physics of the Universe, Institute for Basic Science,Daejeon 305-811 (Korea, Republic of)
  2. Institute for Cosmic Ray Research, The University of Tokyo,5-1-5 Kashiwa-no-ha, Kashiwa City, Chiba 277-8582 (Japan)
  3. (WPI),Todai Institutes for Advanced Study, The University of Tokyo,5-1-5 Kashiwa-no-ha, Kashiwa City, Chiba 277-8582 (Japan)
  4. Department of Physics, Tokyo Institute of Technology,2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan)
Publication Date:
OSTI Identifier:
22458394
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2015; Journal Issue: 10; Other Information: PUBLISHER-ID: JCAP10(2015)041; OAI: oai:repo.scoap3.org:12313; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Sponsoring Org:
SCOAP3, CERN, Geneva (Switzerland)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; COSMOLOGY; GRAVITATIONAL WAVES; NUCLEOSYNTHESIS; PHASE TRANSFORMATIONS; PULSARS; STANDARD MODEL; SUPERSYMMETRY