Search for nearly massless, weakly coupled particles by optical techniques

R. Cameron, G. Cantatore, A. C. Melissinos, G. Ruoso, Y. Semertzidis, H. J. Halama, D. M. Lazarus, A. G. Prodell, F. Nezrick, C. Rizzo, and E. Zavattini
Phys. Rev. D 47, 3707 – Published 1 May 1993
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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 3.5×1010 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<3.6×107 GeV1 at the 95% confidence level, provided ma<103 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<6.7×107 GeV1 for the same range of particle mass.

  • Received 5 October 1992


©1993 American Physical Society

Authors & Affiliations

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

  • *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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Vol. 47, Iss. 9 — 1 May 1993

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