Primordial monopoles, proton decay, gravity waves and GUT inflation
Abstract
Here, we consider non-supersymmetric GUT inflation models in which intermediate mass monopoles may survive inflation because of the restricted number of e-foldings experienced by the accompanying symmetry breaking. Thus, an observable flux of primordial magnetic monopoles, comparable to or a few orders below the Parker limitmay be present in the galaxy. The mass scale associated with the intermediate symmetry breaking is 1013 GeVfor an observable flux level, with the corresponding monopoles an order of magnitude or so heavier. Examples based on SO(10)and E6 yield such intermediate mass monopoles carrying respectively two and three units of Dirac magnetic charge. For GUT inflation driven by a gauge singlet scalar field with a Coleman–Weinberg or Higgs potential, compatibility with the Planck measurement of the scalar spectral index yields a Hubble constant (during horizon exit of cosmological scales) H~7–9 ×1013 GeV, with the tensor to scalar ratio rpredicted to be ≳0.02. Proton lifetime estimates for decays mediated by the superheavy gauge bosons are also provided.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1226400
- Alternate Identifier(s):
- OSTI ID: 1238796
- Grant/Contract Number:
- SC0013880
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 752 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Şenoğuz, Vedat Nefer, and Shafi, Qaisar. Primordial monopoles, proton decay, gravity waves and GUT inflation. Netherlands: N. p., 2016.
Web. doi:10.1016/j.physletb.2015.11.037.
Şenoğuz, Vedat Nefer, & Shafi, Qaisar. Primordial monopoles, proton decay, gravity waves and GUT inflation. Netherlands. https://doi.org/10.1016/j.physletb.2015.11.037
Şenoğuz, Vedat Nefer, and Shafi, Qaisar. Fri .
"Primordial monopoles, proton decay, gravity waves and GUT inflation". Netherlands. https://doi.org/10.1016/j.physletb.2015.11.037.
@article{osti_1226400,
title = {Primordial monopoles, proton decay, gravity waves and GUT inflation},
author = {Şenoğuz, Vedat Nefer and Shafi, Qaisar},
abstractNote = {Here, we consider non-supersymmetric GUT inflation models in which intermediate mass monopoles may survive inflation because of the restricted number of e-foldings experienced by the accompanying symmetry breaking. Thus, an observable flux of primordial magnetic monopoles, comparable to or a few orders below the Parker limitmay be present in the galaxy. The mass scale associated with the intermediate symmetry breaking is 1013 GeVfor an observable flux level, with the corresponding monopoles an order of magnitude or so heavier. Examples based on SO(10)and E6 yield such intermediate mass monopoles carrying respectively two and three units of Dirac magnetic charge. For GUT inflation driven by a gauge singlet scalar field with a Coleman–Weinberg or Higgs potential, compatibility with the Planck measurement of the scalar spectral index yields a Hubble constant (during horizon exit of cosmological scales) H~7–9 ×1013 GeV, with the tensor to scalar ratio rpredicted to be ≳0.02. Proton lifetime estimates for decays mediated by the superheavy gauge bosons are also provided.},
doi = {10.1016/j.physletb.2015.11.037},
journal = {Physics Letters B},
number = C,
volume = 752,
place = {Netherlands},
year = {Fri Jan 01 00:00:00 EST 2016},
month = {Fri Jan 01 00:00:00 EST 2016}
}
https://doi.org/10.1016/j.physletb.2015.11.037
Search WorldCat to find libraries that may hold this journalWeb of Science