180 citations · 619 across the 9 of their papers we have counts for
9 papers
Degrees of Freedom in Massive Gravity
D. Comelli, M. Crisostomi, F. Nesti +1
We study in a systematic way a generic nonderivative (massive) deformation of general relativity using the Hamiltonian formalism. The number of propagating degrees of freedom is an…
Magnetic anomaly in UCN trapping: signal for neutron oscillations to parallel world?
Z. Berezhiani, F. Nesti
Present experiments do not exclude that the neutron transforms into some invisible degenerate twin, so called mirror neutron, with an appreciable probability. These transitions are…
Spherically Symmetric Solutions in Ghost-Free Massive Gravity
D. Comelli, M. Crisostomi, F. Nesti +1
Recently, a class of theories of massive gravity has been shown to be ghost-free. We study the spherically symmetric solutions in the bigravity formulation of such theories. In gen…
FRW Cosmology in Ghost Free Massive Gravity
D. Comelli, M. Crisostomi, F. Nesti +1
We study FRW homogeneous cosmological solutions in the recently found ghost free massive gravity. In previous works it was shown that when the additional extra metric, needed to ge…
Nucleon-Nucleon Bremsstrahlung emission of massive Axion
M. Giannotti, F. Nesti
We consider the problem of axion production by bremsstrahlung emission in a nuclear medium. The usual assumption of a massless axion is replaced by more general hypotheses, so that…
Mirror World, Supersymmetric Axion and Gamma Ray Bursts
L. Gianfagna, M. Giannotti, F. Nesti
A modification of the relation between axion mass and the PQ constant permits a relaxation of the astrophysical constraints, considerably enlarging the allowed axion parameter spac…