Search for nearly massless, weakly coupled particles by optical techniques

Journal Article · Sat May 01 04:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.3707· OSTI ID:6875901

Cameron, R; Cantatore, G; Melissinos, A C; Ruoso, G; Semertzidis, Y ^[1]; Halama, H J; Lazarus, D M; Prodell, A G ^[2]; Nezrick, F ^[3]; Rizzo, C; Zavattini, E ^[4]

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1. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States)
2. Brookhaven National Laboratory, Upton, New York, 11973 (United States)
3. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
4. Dipartimento di Fisica, University of Trieste and Istituto Nazionale di Fisica Nucleare Sezione di Trieste, 34127 Trieste (Italy)

We have searched for light scalar and/or pseudoscalar particles that couple to two photons by studying the propagation of a laser beam ([lambda]=514 nm) through a transverse magnetic field. A limit of 3.5[times]10[sup [minus]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 [ital g][sub [alpha][gamma][gamma]][lt]3.6[times]10[sup [minus]7] GeV[sup [minus]1] at the 95% confidence level, provided [ital m][sub [ital a]][lt]10[sup [minus]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 [ital g][sub [alpha][gamma][gamma]][lt]6.7[times]10[sup [minus]7] GeV[sup [minus]1] for the same range of particle mass.

• DOE Contract Number: AC02-76CH00016; AC02-76CH03000; AC02-76ER13065
• OSTI ID: 6875901
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662390* -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
COUPLING CONSTANTS
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
INTERACTIONS
LASER RADIATION
MAGNETIC FIELDS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTOPRODUCTION
POSTULATED PARTICLES
PRIMAKOFF EFFECT
RADIATIONS