255 citations · 2.2k across the 138 of their papers we have counts for
6 papers · 1 filter
Magnetars: Structure and evolution from p-star models
Paolo Cea
P-stars are compact stars made of up and down quarks in -equilibrium with electrons in a chromomagnetic condensate. We discuss p-stars endowed with super strong dipolar magnetic…
Deconfinement phase transitions in external fields
Paolo Cea, Leonardo Cosmai
We compare vacuum dynamics of abelian versus non abelian lattice gauge theories in presence of external fields. We find that the deconfinement temperature of non abelian theories d…
Time Variation of the Fine Structure Constant in the Spacetime of a Domain Wall
L. Campanelli, P. Cea, L. Tedesco
The gravitational field produced by a domain wall acts as a medium with spacetime-dependent permittivity ε. Therefore, the fine structure constant α= e^2/4 πεwill be a time-depende…
Color Dynamics in External Fields
Paolo Cea, Leonardo Cosmai
We investigate the vacuum dynamics of U(1), SU(2), and SU(3) lattice gauge theories in presence of external (chromo)magnetic fields, both in (3+1) and (2+1) dimensions. We find tha…
Baryogenesis and CP-Violating Domain Walls in the Background of a Magnetic Field
Leonardo Campanelli, Paolo Cea, Gian Luigi Fogli +1
Within the domain wall-mediated electroweak baryogenesis, we study fermion scattering off a CP-violating wall in the background of an uniform magnetic field. In particular, we calc…
Large logarithmic rescaling of the scalar condensate: a subtlety with substantial phenomenological implications
P. Cea, M. Consoli, L. Cosmai
Lattice data, taken since 1998 near the critical line of a 4D Ising model, have been supporting the large logarithmic rescaling of the scalar condensate predicted in the alternativ…