Signatures of axion-like particles in the spectra of TeV gamma-ray sources

Details Signatures of axion-like particles in the spectra of TeV gamma-ray sources Signatures of axion-like particles in the spectra of TeV gamma-ray sources

2007-04-23

arxiv.org/abs/0704.3044v2

Phys.Rev.D76:023001,2007

Astronomy and Astrophysics

Astrophysics

8 pages, 1 eps figure; typos corrected, matches published version

Scientific paper

10.1103/PhysRevD.76.023001

One interpretation of the unexplained signature observed in the PVLAS experiment invokes a new axion-like particle (ALP) with a two-photon vertex, allowing for photon-ALP oscillations in the presence of magnetic fields. In the range of masses and couplings suggested by PVLAS, the same effect would lead to a peculiar dimming of high-energy photon sources. For typical parameters of the turbulent magnetic field in the galaxy, the effect sets in at E_gamma >~ 10 TeV, providing an ALP signature in the spectra of TeV gamma sources that can be probed with Cherenkov telescopes. A dedicated search will be strongly motivated if the ongoing photon regeneration experiments confirm the PVLAS particle interpretation.

Affiliated with

Also associated with

No associations

Rating

Signatures of axion-like particles in the spectra of TeV gamma-ray sources 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 Signatures of axion-like particles in the spectra of TeV gamma-ray sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signatures of axion-like particles in the spectra of TeV gamma-ray sources will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-195613