NEW CONSTRAINTS ON A LIGHT SPINLESS PARTICLE COUPLED TO PHOTONS

Authors
MASSO E TOLDRA R
Citation
E. Masso et R. Toldra, NEW CONSTRAINTS ON A LIGHT SPINLESS PARTICLE COUPLED TO PHOTONS, Physical review. D. Particles and fields, 55(12), 1997, pp. 7967-7969
Citations number
23
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
55
Issue
12
Year of publication
1997
Pages
7967 - 7969
Database
ISI
SICI code
0556-2821(1997)55:12<7967:NCOALS>2.0.ZU;2-G
Abstract
We obtain new stringent constraints on a light spinless particle phi c oupled only to photons at low energies, considering its effects on the extragalactic photon background, the black-body spectrum of the cosmi c microwave background radiation and the cosmological abundance of deu terium.