Coherent production/detection of light scalars/pseudoscalars and QED vacuum polarization

Conference · Wed Feb 05 04:00:00 EST 1992 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5037532

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

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1. Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States)
2. Brookhaven National Laboratory, Upton, NY 11973 (United States)
3. Fermi National Accelerator Laboratory, Batavia, IL 60510 (United States)
4. Dipt. de Fisica, University of Trieste (Italy) INFN Sezione di Trieste 34127 Trieste (Italy)

We searched for light scalars/pseudoscalars (e.g., axions) that couple to two photons using three different techniques: (1) Optical rotation, where a polarized laser beam enters a dipole magnetic field region. The production of scalars/pseudoscalars has an effect the rotation of the polarization which is detected by an analyzer system giving a limit [ital g][sub [alpha][gamma][gamma]][lt]3.6[times]10[sup [minus]7] GeV[sup [minus]1], for [ital m][sub [ital a]][lt]10[sup [minus]3] eV. (2) Photon regeneration experiment, where the particles are generated in one magnet by the polarized laser beam, travel through a wall and reconvert back to the original photons inside another magnet where they are detected by a photomultiplier, giving a limit to [ital g][sub [alpha][gamma][gamma]][lt]6.7[times]10[sup [minus]7] GeV[sup [minus]1] for the same mass range as above. (3) Finally we searched for scalars/pseudoscalars coming from the sun, looking at the back of a dipole magnet pointing at the setting sun, with an x-ray detector. The limit obtained this way is [ital g][sub [alpha][gamma][gamma]][lt]3.7[times]10[sup [minus]9] GeV[sup [minus]1], provided [ital m][sub [ital a]][lt]0.1 eV.

• DOE Contract Number: AC02-76CH00016; AC02-76CH03000; AC02-76ER13065
• OSTI ID: 5037532
• Report Number(s): CONF-920837--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 272:2
• Country of Publication: United States
• Language: English

Related Subjects

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
661320 -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
662220 -- Quantum Electrodynamics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AXIONS
BASIC INTERACTIONS
BEAMS
BOSONS
COHERENT PRODUCTION
CP INVARIANCE
DETECTION
ELECTRODYNAMICS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
GOLDSTONE BOSONS
INTERACTIONS
INVARIANCE PRINCIPLES
MAGNETIC FIELDS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTOMULTIPLIERS
PHOTON-PHOTON INTERACTIONS
PHOTOTUBES
POLARIZED BEAMS
POSTULATED PARTICLES
PSEUDOSCALARS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SCALARS
VACUUM POLARIZATION