Published November 12, 1981
| Version v1
Journal article
The grand unified axion not observable
- 1. European Organization for Nuclear Research, Geneva (Switzerland)
- 2. Grenoble-1 Univ., 74 - Annecy (France). Lab. de Physique des Particules
Description
It is a characteristic of grand unified theories with an axion of the type suggected by Dine, Fischler and Srednicki that they predict a very small neutron electric dipole moment because the QCD theta vacuum parameter is suppressed. The minimal SU(5) axion model of Wise, Georgi and Glashow yields a cosmological baryon-to-photon ratio in the same order as that in the minimal SU(5) model with one 5 of Higgs, which is much smaller than required by astrophysics. More complicated grand unified axion models can avoid this problem. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 106
- Journal Issue
- 4
- Series
- Phys. Lett., B.
- Journal Page Range
- 298-302
- ISSN
- 0370-2693
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 13658039
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AXIONS; ELECTRIC DIPOLE MOMENTS; HIGGS MODEL; NEUTRONS; SU-5 GROUPS; UNIFIED GAUGE MODELS
- Descriptors DEC
- BARYONS; BOSONS; DIPOLE MOMENTS; ELECTRIC MOMENTS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GOLDSTONE BOSONS; HADRONS; LIE GROUPS; MATHEMATICAL MODELS; NUCLEONS; PARTICLE MODELS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; SU GROUPS; SYMMETRY GROUPS