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Title: Electric dipole moment constraints on minimal electroweak baryogenesis

Abstract

We study the simplest generic extension of the standard model which allows for conventional electroweak baryogenesis, through the addition of dimension-six operators in the Higgs sector. At least one such operator is required to be CP-odd, and we study the constraints on such a minimal setup, and related scenarios with minimal flavor violation, from the null results of searches for electric dipole moments (EDMs), utilizing the full set of two-loop contributions to the EDMs. The results indicate that the current bounds are stringent, particularly that of the recently updated neutron EDM, but fall short of ruling out these scenarios. The next generation of EDM experiments should be sufficiently sensitive to provide a conclusive test.

Authors:
 [1];  [2];  [3];  [2]
  1. Theoretical Division, Department of Physics, CERN, Geneva 23, CH-1211 (Switzerland)
  2. Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 5C2 (Canada)
  3. (Canada)
Publication Date:
OSTI Identifier:
21011020
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.75.036006; (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; ELECTRIC DIPOLE MOMENTS; ELECTROMAGNETIC INTERACTIONS; FIELD OPERATORS; HIGGS BOSONS; HIGGS MODEL; MANY-DIMENSIONAL CALCULATIONS; NEUTRONS; STANDARD MODEL; WEAK INTERACTIONS

Citation Formats

Huber, Stephan J., Pospelov, Maxim, Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9, and Ritz, Adam. Electric dipole moment constraints on minimal electroweak baryogenesis. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.036006.
Huber, Stephan J., Pospelov, Maxim, Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9, & Ritz, Adam. Electric dipole moment constraints on minimal electroweak baryogenesis. United States. doi:10.1103/PHYSREVD.75.036006.
Huber, Stephan J., Pospelov, Maxim, Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9, and Ritz, Adam. Thu . "Electric dipole moment constraints on minimal electroweak baryogenesis". United States. doi:10.1103/PHYSREVD.75.036006.
@article{osti_21011020,
title = {Electric dipole moment constraints on minimal electroweak baryogenesis},
author = {Huber, Stephan J. and Pospelov, Maxim and Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9 and Ritz, Adam},
abstractNote = {We study the simplest generic extension of the standard model which allows for conventional electroweak baryogenesis, through the addition of dimension-six operators in the Higgs sector. At least one such operator is required to be CP-odd, and we study the constraints on such a minimal setup, and related scenarios with minimal flavor violation, from the null results of searches for electric dipole moments (EDMs), utilizing the full set of two-loop contributions to the EDMs. The results indicate that the current bounds are stringent, particularly that of the recently updated neutron EDM, but fall short of ruling out these scenarios. The next generation of EDM experiments should be sufficiently sensitive to provide a conclusive test.},
doi = {10.1103/PHYSREVD.75.036006},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}