65 citations · 65 across the 3 of their papers we have counts for
8 papers
Electromagnetic effects in Kl3 decays
Vincenzo Cirigliano, Maurizio Giannotti, Helmut Neufeld
We study the radiative corrections to all Kl3 decay modes to leading non-trivial order in the chiral effective field theory, working with a fully inclusive prescription on real pho…
Primordial Magnetic Fields and the Peccei-Quinn Scale
Leonardo Campanelli, Maurizio Giannotti
A strong primordial magnetic field can induce a relaxation of the present bound on the PQ-constant. We show that, considering the present limits on primordial magnetic fields, a va…
Magnetic Induced Axion Mass
L. Campanelli, M. Giannotti
We study the effect of a uniform magnetic field on the dynamics of axions. In particular, we show that the Peccei-Quinn symmetry is explicitly broken by the presence of an external…
Production of Axions by Cosmic Magnetic Helicity
L. Campanelli, M. Giannotti
We investigate the effects of an external magnetic helicity production on the evolution of the cosmic axion field. It is shown that a helicity larger than (few \times 10^{-15} G)^2…
A Note on the Cosmic Evolution of the Axion in a Strong Magnetic Field
L. Campanelli, M. Giannotti
It has been pointed out in the literature that in the presence of an external magnetic field the axion mass receives an electromagnetic contribution. We show that if a magnetic fie…
Magnetic Helicity Generation from the Cosmic Axion Field
L. Campanelli, M. Giannotti
The coupling between a primordial magnetic field and the cosmic axion field generates a helical component of the magnetic field around the time in which the axion starts to oscilla…