# GRAVITATIONAL CHERENKOV RADIATION FROM EXTENDED THEORIES OF GRAVITY

@article{Laurentis2012GRAVITATIONALCR, title={GRAVITATIONAL CHERENKOV RADIATION FROM EXTENDED THEORIES OF GRAVITY}, author={Mariafelicia De Laurentis and Salvatore Capozziello and Giuseppe Basini}, journal={Modern Physics Letters A}, year={2012}, volume={27}, pages={1250136} }

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.

## 6 Citations

Gravitoelectromagnetism, Cherenkov radiation at finite temperature

- PhysicsModern Physics Letters A
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Gravitoelectromagnetism (GEM) is a gravitational theory similar to electromagnetism. The GEM Lagrangian formalism is used to consider a study of the Cherenkov radiation. This allows us to consider…

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- Physics
- 2015

We derive the radiation characteristics of an accelerated, charged particle in a model due to Caianiello in which the proper acceleration of a particle of mass m has the upper limit 𝒜m = 2mc3/ℏ. We…

Tests of Lorentz Symmetry in the Gravitational Sector

- Physics
- 2016

Lorentz symmetry is one of the pillars of both General Relativity and the Standard Model of particle physics. Motivated by ideas about quantum gravity, unification theories and violations of CPT…

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- PhysicsPhysical Review D
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Lorentz violations in gravitational waves are investigated. Plane-wave solutions for arbitrary gauge-invariant violations in linearized gravity are constructed. Signatures of Lorentz violation…

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