Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-04-17
Phys.Rev.D74:073002,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
40 pages, LaTeX, 5.eps Figures, new appendix and results included, misprints corrected, conclusions unchanged. Version to appe
Scientific paper
10.1103/PhysRevD.74.073002
We consider the minimal coupling of two photons to neutral scalar and pseudoscalar fields, as for instance in the case of the Higgs boson and axion, respectively. In this framework, we analyze the photon dispersion relations in the presence of static and homogeneous external magnetic and electric fields, by taking into account the contribution of the imaginary part of the scalar/pseudoscalar self-energy. We show that this contribution cannot be neglected when it is of the same order as the photon-scalar/pseudoscalar mixing term. In addition to the usual light-like photon propagation mode, with a refraction index n > 1, a massive mode with mass of the order of the coupled boson mass can be induced, provided that the external field is above a particular critical value. Depending on the values of the external field, photon energy, and mass of the scalar/pseudoscalar particle, the scalar/pseudoscalar width could induce a sizeable rate of photon splitting in two photons due to a strong resonant phenomenon. This effect has no practical laboratory applications for the Higgs physics due to the very large critical external magnetic or electric fields involved, for a photon energy of the order of a TeV. However, it can have relevant consequences in the axion physics or in any other scenario where light neutral scalar/pseudoscalar fields have minimal coupling with two photons.
Gabrielli Emidio
Huitu Katri
Roy Subinit
No associations
LandOfFree
Photon propagation in magnetic and electric fields with scalar/pseudoscalar couplings: a new look does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photon propagation in magnetic and electric fields with scalar/pseudoscalar couplings: a new look, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photon propagation in magnetic and electric fields with scalar/pseudoscalar couplings: a new look will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-483221