Light scalars coupled to photons and non-newtonian forces

Details Light scalars coupled to photons and non-newtonian forces Light scalars coupled to photons and non-newtonian forces

2006-10-23

arxiv.org/abs/hep-ph/0610286v2

Phys.Rev.Lett.98:131802,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

With respect to v1, we have extended the paper, also new authors have joined. Submitted to PRL

Scientific paper

10.1103/PhysRevLett.98.131802

A particle $\phi$ coupling to two photons couples also to charged particles,
like protons, through a loop. If the particle is a light scalar this induced
coupling to protons leads to non-newtonian forces. We show that the
experimental constraints on exotic, fifth-type forces lead to stringent
constraints on the $\phi\gamma\gamma$ coupling.

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