3 papers
astro-ph.CO2026
Parameterizations of the Hubble Constant: Logarithmic vs Power-Law Expansion from the Binned Master Sample of SNe Ia
Maria Giovanna Dainotti, Avik Banerjee, Andre' LeClair +1
In view of the current and increasing evidence of a running Hubble constant, we investigate its redshift dependence within the flat CDM framework using a 20-bin analysis of the…
hep-ph2026
Light Vector Dark Matter via a Magnetic Dipole Portal: Bridging Direct Detection and Fixed-Target Searches
Avik Banerjee, Riccardo Catena, Taylor R. Gray
We present a model featuring sub-GeV vector dark matter by augmenting the Standard Model with a new non-Abelian dark , spontaneously broken by the vacuum expectation value…
hep-ph2025
Drell-Yan constraints on charged scalars: a weak isospin perspective
Avik Banerjee, Dipankar Das, Samadrita Mukherjee +1
Charged scalars appear in many motivated extensions beyond the Standard Model. We analyze the constraints on charged scalar pair production via the Drell-Yan process at the Large H…