skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Single field inflation in supergravity with a U(1) gauge symmetry

Abstract

A single field inflation based on a supergravity model with a shift symmetry and U(1) extension of the MSSM is analyzed. We show that one of the real components of the two U(1) charged scalar fields plays the role of inflaton with an effective scalar potential similar to the “new chaotic inflation” scenario. Both non-anomalous and anomalous (with Fayet-Iliopoulos term) U(1) are studied. We show that the non-anomalous U(1) scenario is consistent with data of the cosmic microwave background and recent astrophysical measurements. A possible kinetic mixing between U(1) and U(1){sub B−L} is considered in order to allow for natural decay channels of the inflaton, leading to a reheating epoch. Upper limits on the reheating temperature thus turn out to favour an intermediate (∼O(10{sup 13}) GeV) scale B−L symmetry breaking.

Authors:
 [1];  [2];  [3];  [2]
  1. Centre de Physique Théorique, École Polytechnique, CNRS,91128 Palaiseau (France)
  2. Center for Fundamental Physics, Zewail City of Science and Technology,6 October City, Cairo (Egypt)
  3. (Egypt)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22458395
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)045; OAI: oai:repo.scoap3.org:12346; 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)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASTROPHYSICS; CHAOS THEORY; COSMOLOGICAL INFLATION; GAUGE INVARIANCE; GEV RANGE; POTENTIALS; RELICT RADIATION; SCALAR FIELDS; STANDARD MODEL; SUPERGRAVITY; SUPERSYMMETRY; SYMMETRY BREAKING

Citation Formats

Heurtier, L., Khalil, S., Department of Mathematics, Faculty of Science, Ain Shams University,Cairo, 11566, and Moursy, A. Single field inflation in supergravity with a U(1) gauge symmetry. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/10/045.
Heurtier, L., Khalil, S., Department of Mathematics, Faculty of Science, Ain Shams University,Cairo, 11566, & Moursy, A. Single field inflation in supergravity with a U(1) gauge symmetry. United States. doi:10.1088/1475-7516/2015/10/045.
Heurtier, L., Khalil, S., Department of Mathematics, Faculty of Science, Ain Shams University,Cairo, 11566, and Moursy, A. Mon . "Single field inflation in supergravity with a U(1) gauge symmetry". United States. doi:10.1088/1475-7516/2015/10/045.
@article{osti_22458395,
title = {Single field inflation in supergravity with a U(1) gauge symmetry},
author = {Heurtier, L. and Khalil, S. and Department of Mathematics, Faculty of Science, Ain Shams University,Cairo, 11566 and Moursy, A.},
abstractNote = {A single field inflation based on a supergravity model with a shift symmetry and U(1) extension of the MSSM is analyzed. We show that one of the real components of the two U(1) charged scalar fields plays the role of inflaton with an effective scalar potential similar to the “new chaotic inflation” scenario. Both non-anomalous and anomalous (with Fayet-Iliopoulos term) U(1) are studied. We show that the non-anomalous U(1) scenario is consistent with data of the cosmic microwave background and recent astrophysical measurements. A possible kinetic mixing between U(1) and U(1){sub B−L} is considered in order to allow for natural decay channels of the inflaton, leading to a reheating epoch. Upper limits on the reheating temperature thus turn out to favour an intermediate (∼O(10{sup 13}) GeV) scale B−L symmetry breaking.},
doi = {10.1088/1475-7516/2015/10/045},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 10,
volume = 2015,
place = {United States},
year = {Mon Oct 19 00:00:00 EDT 2015},
month = {Mon Oct 19 00:00:00 EDT 2015}
}
  • A single field inflation based on a supergravity model with a shift symmetry and U(1) extension of the MSSM is analyzed. We show that one of the real components of the two U(1) charged scalar fields plays the role of inflaton with an effective scalar potential similar to the ''new chaotic inflation'' scenario. Both non-anomalous and anomalous (with Fayet-Iliopoulos term) U(1) are studied. We show that the non-anomalous U(1) scenario is consistent with data of the cosmic microwave background and recent astrophysical measurements. A possible kinetic mixing between U(1) and U(1){sub B−L} is considered in order to allow for naturalmore » decay channels of the inflaton, leading to a reheating epoch. Upper limits on the reheating temperature thus turn out to favour an intermediate (∼ O(10{sup 13}) GeV) scale B−L symmetry breaking.« less
  • Cited by 55
  • The authors discuss symmetry breaking and phenomenological aspects of rank 6 effective models in 4 dimensions, suggested by Calabi-Yau compactification of the heterotic E/sub 8/ x E/sub 8/ superstring, which have gauge group SU(3)/sub C/ x SU(2)/sub L/ x SU(2) x U(1)'. The simplest and most natural form of electroweak symmetry breaking for the softly broken effective SUSY theory is considered, and only those additions and alterations to the 27/sup 3/ based superpotential necessary to eliminate phenomenological problems are made. There are two physically distinct additional SU(2) factors, SU(2)/sub N/ and SU(2)/sub R/. The former has all gauge bosons electricallymore » neutral, the latter both charged and neutral. The additional SU(2) symmetry implies that large Dirac neutrino masses must be eliminated by a see-saw mechanism requiring the introduction of an E/sub 6/ singlet per generation and an intermediate scale of symmetry breaking M/sub I/(/ge/10/sup 10/ GeV). The intermediate scale symmetry breaking together with the couplings involving E/sub 6/ singlets needed for the see-saw mechanism unambiguously determines the form of the superpotential describing physics at low scales /approx/ 1 TeV. All additional heavy charge -1/3 quarks and additional Higgs doublets have masses /approx/ 1 TeV. An additional U(1)/sub E/ remains unbroken down to the 1 TeV scale. The resulting effective theories have no U(1)/sub E/ mediated FCNC due to mixing of heavy and light charge -1/3 quarks. Some couplings must be eliminated in order to prevent rapid nucleon decay.« less
  • This paper undertakes a study of the nature of the force associated with the local U(1)-gauge symmetry of a non-relativistic quantum particle. To ensure invariance under local U(1) symmetry, a matter field must couple to a gauge field. We show that such a gauge field satisfies Maxwell's equations, whether the matter field coupled to it is relativistic or non-relativistic. This result suggests that the structure of Maxwell's equations is determined by gauge symmetry rather than the symmetry transformation properties of space-time. In order to assess the validity of this notion, we examine the transformation properties of the coupled matter andmore » gauge fields under Galilean transformations. Our main technical result is the Galilean invariance of the full equations of motion of the U(1) gauge field.« less
  • We present a gauge model for weak and electromagnetic interactions with the symmetry group SU(3) x U(1) x U(1). The ..delta..T=1/2 rule for the nonleptonic decays of hadrons is valid in this model. The vector mesons Psi (3.1), Psi (3.7), and Psi (4.2) are identified with the intermediate bosons of the weak interaction. The physical consequences are discussed.