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
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
Maximal acceleration and radiative processes
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
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
Signals for Lorentz violation in gravitational waves
Lorentz violations in gravitational waves are investigated. Plane-wave solutions for arbitrary gauge-invariant violations in linearized gravity are constructed. Signatures of Lorentz violation

References

SHOWING 1-10 OF 34 REFERENCES
Probing the Brans-Dicke gravitational field by Cherenkov radiation
The possibility that a charged particle propagating in a gravitational field described by Brans-Dicke theory of gravity could emit Cherenkov radiation is explored. This process is kinematically
Cerenkov radiation emitted by charged particles in a gravitational field
Charged particles propagating in an external gravitational field with negative Ricci tensor components can emit radiation by the Cerenkov process. The external gravitational field acts like an
Deriving the mass of particles from Extended Theories of Gravity in LHC era
We derive a geometrical approach to produce the mass of particles that could be suitably tested at LHC. Starting from a 5D unification scheme, we show that all the known interactions could be
Quantum Fields in Curved Space
This book presents a comprehensive review of the subject of gravitational effects in quantum field theory. Although the treatment is general, special emphasis is given to the Hawking black hole
...
1
2
3
4
...