LIGHT SPINLESS PARTICLE COUPLED TO PHOTONS

被引:142
作者
MASSO, E [1 ]
TOLDRA, R [1 ]
机构
[1] UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES,E-08193 BARCELONA,SPAIN
来源
PHYSICAL REVIEW D | 1995年 / 52卷 / 04期
关键词
D O I
10.1103/PhysRevD.52.1755
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A pseudoscalar or scalar particle phi that couples to two photons but not to leptons, quarks, and nucleons would have effects in most of the experiments searching for axions, since these are based on the alpha gamma gamma coupling. We examine the laboratory, astrophysical, and cosmological constraints on phi and study whether it may constitute a substantial part of the dark matter. We also generalize the phi interactions to possess SU(2) x U(1) gauge invariance, and analyze the phenomenological implications.
引用
收藏
页码:1755 / 1763
页数:9
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