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Title: Resonant photon-graviton conversion in EM fields: From earth to heaven

Gravitational radiation from high energy particles in modern accelerators is reviewed. We point out that the most effective way for laboratory production and detection of gravitons is through resonant photon-graviton conversion in a strong external EM field. Specific example using crystal channels for the {gamma} {yields} g {yields} {gamma} process is given, where the physical parameters needed for such a test appears to be reasonable. As another application of this effect in astrophysics, we show that the coupling between the cosmic microwave background radiation (CMBR) and the primordial magnetic field can induce a frequency-independent fluctuation in the photon flux. Using the observed CMBR fluctuation, we derive a bound on the primordial field strength. The effect can also convert the relic gravitons into photons. For the string cosmology it gives a new bound on the Hubble parameter at the Big Bang.
Authors:
Publication Date:
OSTI Identifier:
10193658
Report Number(s):
SLAC-PUB--6666; CONF-9403118--2
ON: DE95002784; TRN: 94:023924
DOE Contract Number:
AC03-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: 1. international conference on phenomenology of unification from present to future,Roma (Italy),23-26 Mar 1994; Other Information: PBD: Sep 1994
Research Org:
Stanford Linear Accelerator Center, Menlo Park, CA (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GRAVITONS; PARTICLE PRODUCTION; DETECTION; ELECTROMAGNETIC FIELDS; RELICT RADIATION; BREMSSTRAHLUNG; COSMOLOGY 661310; 662440; 440104; RELATIVITY AND GRAVITATION; PROPERTIES OF OTHER PARTICLES INCLUDING HYPOTHETICAL PARTICLES; HIGH ENERGY PHYSICS INSTRUMENTATION