Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-06-12
Phys.Lett. B569 (2003) 51-56
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 4 figures
Scientific paper
10.1016/j.physletb.2003.07.015
There are strong theoretical arguments in favour of the existence of very light scalar or pseudoscalar particles beyond the Standard Model which have, so far, remained undetected, due to their very weak coupling to ordinary matter. We point out that after HERA has been decommissioned, there arises a unique opportunity for searches for such particles: a number of HERA's four hundred superconducting dipole magnets might be recycled and used for laboratory experiments to produce and detect light neutral bosons that couple to two photons, such as the axion. We show that, in this way, laser experiments searching for photon regeneration or polarization effects in strong magnetic fields can reach a sensitivity which is unprecedented in pure laboratory experiments and exceeds astrophysical limits from stellar evolution considerations.
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