Abstract The Forward Physics Facility (FPF) is a proposal to create a cavern with the space
and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider …

We propose a type II seesaw model for light Dirac neutrinos to provide an explanation for the
recently reported anomaly in W boson mass by the CDF collaboration with 7σ statistical …

A bstract We investigate the impact of new light particles, carrying significant energy in the
early universe after neutrino decoupling, on the cosmological effective relativistic neutrino …

A bstract In the early universe, Dirac neutrino magnetic moments due to their chirality-
flipping nature could lead to thermal production of right-handed neutrinos, which would …

We discuss Dirac neutrinos whose right-handed component ν R has new interactions that
may lead to a measurable contribution to the effective number of relativistic neutrino species …

Right-handed neutrinos (RHNs) provide a natural portal to a dark sector accommodating
dark matter (DM). In this work, we consider that the dark sector is connected to the standard …

We propose a Dirac neutrino portal dark matter scenario by minimally extending the particle
content of the Standard Model (SM) with three right-handed neutrinos (ν R), a Dirac fermion …

Coherent forward scattering processes by neutrino-scalar nonstandard interactions (SNSI)
induce an effective neutrino mass. In the early Universe, a large neutrino effective mass …

A bstract The number of relativistic species, N eff, has been precisely calculated in the
standard model, and would be measured to the percent level by CMB-S4 in future. Neutral …

The relativistic degrees of freedom (N eff) is one of the crucial cosmological parameters. The
precise measurement of N eff at the time of cosmic microwave background formation, by …