Published July 30, 2012 | Version v1
Journal article Metadata-only

Cosmological constraints on thermal relic axions and axion-like particles

Creators

  • 1. Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 Munich (Germany)

Description

Cosmological precision data can be used to set very strict constraints on axions and axion-like particles (ALPs) produced thermally in the big bang. We briefly review the known bounds and propose two new constraints for axions and ALPs decaying in the early universe, based upon the concomitant dilution of baryon and neutrino densities, using WMAP7 and other cosmological data.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/375/1/022002

Additional details

Identifiers

DOI
10.1088/1742-6596/375/1/022002;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
375
Journal Issue
2
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
12. international conference on topics in astroparticle and underground physics
Acronym
TAUP 2011
Dates
5-9 Sep 2011
Place
Munich (Germany)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43103888
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASTROPHYSICS; AXIONS; BARYONS; COSMOLOGY; DILUTION; NEUTRINOS; NEUTRON DENSITY; PROTON DENSITY; RELICT RADIATION; UNIVERSE
Descriptors DEC
BOSONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; GOLDSTONE BOSONS; HADRONS; LEPTONS; MASSLESS PARTICLES; MICROWAVE RADIATION; PHYSICS; POSTULATED PARTICLES; RADIATIONS