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Cross Section of a Resonant-Mass Detector for Scalar Gravitational Waves
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BibTeX
@MISC{Brunetti_crosssection,
author = {Bianchi Brunetti and M. Bianchi and M. Brunetti and E. Coccia and F. Fucito and J. A. Lobo},
title = {Cross Section of a Resonant-Mass Detector for Scalar Gravitational Waves},
year = {}
}
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Abstract
Gravitationally coupled scalar fields, originally introduced by Jordan, Brans and Dicke to account for a non constant gravitational coupling, are a prediction of many non-Einsteinian theories of gravity not excluding perturbative formulations of String Theory. In this paper, we compute the cross sections for scattering and absorption of scalar and tensor gravitational waves by a resonant-mass detector in the framework of the Jordan-Brans-Dicke theory. The results are then specialized to the case of a detector of spherical shape and shown to reproduce those obtained in General Relativity in a certain limit. Eventually we discuss the potential detectability of scalar waves emitted in a spherically symmetric gravitational collapse. 1 Dipartimento di Fisica, Universit`a di Roma II "Tor Vergata" 2 I.N.F.N. Sezione di Roma II, Via Della Ricerca Scientifica, 00133 Roma, ITALY 3 Departament de Fisica Fonamental, Universitat de Barcelona, Diagonal 647, Barcelona, Spain 1 Introduction Pos...
Keyphrases
resonant-mass detector cross section scalar gravitational wave many non-einsteinian theory potential detectability i.n.f.n. sezione scalar field di rom ii tor vergata tensor gravitational wave jordan-brans-dicke theory dipartimento di fisica general relativity certain limit via della ricerca scientifica non constant gravitational coupling rom ii introduction po scalar wave perturbative formulation fisica fonamental string theory spherical shape symmetric gravitational collapse
