50 citations · 345 across the 26 of their papers we have counts for
3 papers · 1 filter
Parity-Odd and Even Trispectrum from Axion Inflation
Xuce Niu, Moinul Hossain Rahat, Karthik Srinivasan +1
The four-point correlation function of primordial scalar perturbations has parity-even and parity-odd contributions and the parity-odd signal in cosmological observations is openin…
Gravitational Wave Probes of Massive Gauge Bosons at the Cosmological Collider
Xuce Niu, Moinul Hossain Rahat, Karthik Srinivasan +1
We extend the reach of the ``cosmological collider'' for massive gauge boson production during inflation from the CMB scales to the interferometer scales. Considering a Chern-Simon…
BBN Photodisintegration Constraints on Gravitationally Produced Vector Bosons
Chee Sheng Fong, Moinul Hossain Rahat, Shaikh Saad
Gravitational production of massive particles due to cosmic expansion can be significant during the inflationary and reheating period of the Universe. If the particle also has non-…