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Phys. Rev. D 47, 3707–3725 (1993)

Search for nearly massless, weakly coupled particles by optical techniques

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R. Cameron*, G. Cantatore†, A. C. Melissinos, G. Ruoso‡, and Y. Semertzidis§
Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627

H. J. Halama, D. M. Lazarus, and A. G. Prodell
Brookhaven National Laboratory, Upton, New York, 11973

F. Nezrick
Fermi National Accelerator Laboratory, Batavia, Illinois 60510

C. Rizzo and E. Zavattini
Dipartimento di Fisica, University of Trieste and Istituto Nazionale di Fisica Nucleare Sezione di Trieste, 34127 Trieste, Italy

Received 5 October 1992; published in the issue dated 1 May 1993

We have searched for light scalar and/or pseudoscalar particles that couple to two photons by studying the propagation of a laser beam (λ=514 nm) through a transverse magnetic field. A limit of 3.5×10-10 rad was set on a possible optical rotation of the beam polarization for an effective path length of 2.2 km in a 3.25 T magnetic field. We find that the coupling gαγγ<3.6×10-7 GeV-1 at the 95% confidence level, provided ma<10-3 eV. Similar limits can be set from the absence of ellipticity in the transmitted beam. We also searched for photon regeneration in a magnetic field and found the limit gαγγ<6.7×10-7 GeV-1 for the same range of particle mass.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.47.3707
DOI:
10.1103/PhysRevD.47.3707
PACS:
14.80.Gt, 12.20.Fv, 14.80.Am

*Present address: Department of Physics, University of Western Ontario, London, ON N6A 3K7, Canada.

†Present address: Dipartimento di Fisica dell'Universita di Trieste 34127, Trieste, Italy.

‡Present address: Dipartimento di Fisica "Galileo Galilei" dell'Università di Padova, 1-35100 Padova, Italy.

§Present address: Physics Department, Brookhaven National Laboratory, Upton, NY 11973.

 
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