38 citations · 116 across the 8 of their papers we have counts for
5 papers · 1 filter
Can WIMPs Survive the Legacy of a Magnetised Early Universe?
María Olalla Olea-Romacho, Malcolm Fairbairn, Pranjal Ralegankar
Primordial magnetic fields (PMFs) can seed additional small-scale matter fluctuations, leading to the formation of dense, early-collapsing dark matter structures known as minihalos…
Dark radiation constraints on portal interactions with hidden sectors
Peter Adshead, Pranjal Ralegankar, Jessie Shelton
We update dark radiation constraints on millicharged particle (MCP) and gauged baryon-number-minus-lepton-number () extensions of the Standard Model (SM). In these models, a m…
Cannibalism's lingering imprint on the matter power spectrum
Adrienne L. Erickcek, Pranjal Ralegankar, Jessie Shelton
The early universe may have contained internally thermalized dark sectors that were decoupled from the Standard Model. In such scenarios, the relic dark thermal bath, composed of t…
Reheating in two-sector cosmology
Peter Adshead, Pranjal Ralegankar, Jessie Shelton
We analyze reheating scenarios where a hidden sector is populated during reheating along with the sector containing the Standard Model. We numerically solve the Boltzmann equations…
Late decaying 2-component dark matter scenario as an explanation of the AMS-02 positron excess
Jatan Buch, Pranjal Ralegankar, Vikram Rentala
The long standing anomaly in the positron flux as measured by the PAMELA and AMS-02 experiments could potentially be explained by dark matter (DM) annihilations. This scenario typi…