Issue Europhys. Lett. Volume 59, Number 2, July 2002 Page(s) 173 - 179 Section General DOI 10.1209/epl/i2002-00224-x

DOI: 10.1209/epl/i2002-00224-x


Europhys. Lett., 59 (2) , pp. 173-179 (2002)

Gamma-Ray Bursts in Brans-Dicke theory

G. Lambiase^{1, 2} and S. Carloni<sup>1, 2

1</sup>  Dipartimento di Fisica "E. R. Caianiello", Università di Salerno I-84081 Baronissi (SA), Italy
²  INFN-Gruppo Collegato di Salerno - Baronissi (SA), Italy

lambiase@sa.infn.it
carloni@sa.infn.it

(Received 8 February 2002; accepted in final form 23 April 2002)

Abstract
Gamma-Ray Bursts (GRBs) production is discussed in the framework of the Brans-Dicke (BD) theory of gravity. We derive the effective potential and the acceleration of a scalar particle propagating in a gravitational field described by BD theory. The rate of the energy radiated by charged particles is also calculated. Constraints on parameters entering the BD theory are fixed in order to reproduce the typical outputs energy of GRBs.

PACS
04.50.+h - Gravity in more than four dimensions, Kaluza-Klein theory, unified field theories; alternative theories of gravity.
98.70.Rz - Gamma-ray sources; gamma-ray bursts.


© EDP Sciences 2002

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