The Need for Purely Laboratory-Based Axion-Like Particle Searches

Details The Need for Purely Laboratory-Based Axion-Like Particle Searches The Need for Purely Laboratory-Based Axion-Like Particle Searches

2006-10-17

arxiv.org/abs/hep-ph/0610203v1

Phys.Rev.D75:013004,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex4, 21 pages, 9 figures, 2 tables

Scientific paper

10.1103/PhysRevD.75.013004

The PVLAS signal has led to the proposal of many experiments searching for light bosons coupled to photons. The coupling strength probed by these near future searches is, however, far from the allowed region, if astrophysical bounds apply. But the environmental conditions for the production of axion-like particles in stars are very different from those present in laboratories. We consider the case in which the coupling and the mass of an axion-like particle depend on environmental conditions such as the temperature and matter density. This can relax astrophysical bounds by several orders of magnitude, just enough to allow for the PVLAS signal. This creates exciting possibilities for a detection in near future experiments.

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