Scientific article
Open access

Cross section of a resonant-mass detector for scalar gravitational waves

Publication date1998

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.

Affiliation Not a UNIGE publication
Citation (ISO format)
BIANCHI, M. et al. Cross section of a resonant-mass detector for scalar gravitational waves. In: Physical review. D. Particles, fields, gravitation, and cosmology, 1998, vol. 57, n° 8, p. 4525–4534. doi: 10.1103/PhysRevD.57.4525
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Article (Accepted version)
ISSN of the journal1550-2368

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