Circumventing Astrophysical Bounds Upon PVLAS Experiment

TL;DR

This paper explores how strong self-couplings of light pseudoscalars can evade astrophysical constraints, allowing laboratory experiments like PVLAS to detect them without conflicting with astrophysical bounds.

Contribution

It demonstrates that sufficiently strong self-couplings can bypass astrophysical bounds on pseudoscalars, aligning experimental results with theoretical constraints.

Findings

Strong self-couplings can evade solar bounds

PVLAS results can be compatible with astrophysical constraints

Identifies coupling ranges avoiding conflicts

Abstract

We study the possibility of evading astrophysical bound on light pseudoscalars. We argue that the solar bounds can be evaded if we have a sufficiently strong self-coupling of the pseudoscalars. The required coupling does not conflict with any known experimental bounds. We also show that it is possible to find a coupling range such that the recent PVLAS experiment is not in conflict with any astrophysical bounds.