Testing PVLAS axions with resonant photon splitting

Gabrielli, Emidio; Giovannini, Massimo

Testing PVLAS axions with resonant photon splitting

Emidio Gabrielli
(
- Helsinki Inst. of Phys.
)
,
Massimo Giovannini
(
- Enrico Fermi Ctr., Rome and
- CERN
)

Feb, 2007

7 pages

e-Print:

hep-ph/0702197 [hep-ph]

Report number:

CERN-PH-TH-2007-033,
HIP-2007-04-TH

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Abstract:

The photon splitting gamma -> gamma gamma in a time-independent and inhomogeneous magnetized background is considered when neutral and ultralight spin-0 particles are coupled to two-photons. Depending on the inhomogeneity scale of the external field, resonant photon splitting can occur. If an optical laser crosses a magnetic field of few Tesla with typical inhomogeneity scale of the order of the meter, a potentially observable rate of photon splittings is expected for the PVLAS range of couplings and masses.

photon: splitting
resonance
magnetic field: background
axion: PVLAS
numerical calculations

References(21)

Figures(0)

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