GRAVITATIONAL CHERENKOV RADIATION FROM EXTENDED THEORIES OF GRAVITY-Reference-Cited by-同舟云学术

GRAVITATIONAL CHERENKOV RADIATION FROM EXTENDED THEORIES OF GRAVITY

Published:2012-07-24 Issue:23 Volume:27 Page:1250136
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

DE LAURENTIS M.¹²,CAPOZZIELLO S.¹²,BASINI G.³

Affiliation:

1. Dipartimento di Scienze Fisiche, Università di Napoli "Federico II", Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy

2. INFN Sezione di Napoli, Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy

3. Laboratori Nazionali di Frascati, INFN, Via E. Fermi, C.P. 13, I-0044 Frascati, Italy

Abstract

We linearize the field equations for higher order theories of gravity that contain scalar invariants other than the Ricci scalar. We find that besides a massless spin-2 field (the standard graviton), the theory contains also spin-0 and spin-2 massive modes with the latter being, in general, ghost modes. The rate at which such particles would emit gravitational Cherenkov radiation is calculated for some interesting physical cases.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732312501362

Reference21 articles.

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