activity
19952022
most citedPotential Sensitivity of Gamma-Ray Burster Observations to Wave Dispersion in Vacuo

1.4k citations · 8.8k across the 121 of their papers we have counts for

collaborators

121 papers

hep-ph2022★ 33 cited

Ruling out light axions: the writing is on the wall

Konstantin A. Beyer, Subir Sarkar

We revisit the domain wall problem for QCD axion models with more than one quark charged under the Peccei-Quinn symmetry. Symmetry breaking during or after inflation results in the…

hep-ph2022★ 53 cited

Blast from the past II: Constraints on heavy neutral leptons from the BEBC WA66 beam dump experiment

Ryan Barouki, Giacomo Marocco, Subir Sarkar

We revisit the search for heavy neutral leptons with the Big European Bubble Chamber in the 1982 proton beam dump experiment at CERN, focussing on those heavier than the kaon and m…

astro-ph.CO2022

Galaxy number-count dipole and superhorizon fluctuations

Guillem Domènech, Roya Mohayaee, Subodh P. Patil +1

In view of the growing tension between the dipole anisotropy of number counts of cosmologically distant sources and of the cosmic microwave background (CMB), we investigate the num…

astro-ph.CO2022★ 158 cited

A Challenge to the Standard Cosmological Model

Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez +2

We present the first joint analysis of catalogs of radio galaxies and quasars to determine if their sky distribution is consistent with the standard CDM model of cosmology. This…

hep-ph2022★ 4 cited

Searching exotic Higgs bosons at the LHC

Gautam Bhattacharyya, Siddharth Dwivedi, Dilip Kumar Ghosh +2

We analyse in a model independent way the possibilities of digging out neutral exotic Higgs states, should they exist endowed with unconventional couplings with ordinary matter and…

astro-ph.CO2021★ 37 cited

Do supernovae indicate an accelerating universe?

Roya Mohayaee, Mohamed Rameez, Subir Sarkar

In the late 1990's, observations of 93 Type Ia supernovae were analysed in the framework of the FLRW cosmology assuming these to be `standard(isable) candles'. It was thus inferred…