130 citations · 934 across the 27 of their papers we have counts for
5 papers · 1 filter
Worth the Effort? An Examination on the Effect of Higher Diligence Calculations of the Sound Shell Model
Fazlollah Hajkarim, Graham White, Yang Xiao
The gravitational wave spectrum arising from using the full velocity profile is well known to differ qualitatively from analytic fits to a broken power law. Former studies have sho…
Oscillations and parity violation in gravitational wave background from extra tensor modes
Jaume Garriga, Mohammad Ali Gorji, Fazlollah Hajkarim +1
Spectator fields which provide additional tensor degrees of freedom, on top of the standard metric tensor perturbations, can produce significant amounts of gravitational waves (GWs…
Supernova-Boosted Dark Matter at Large-Volume Neutrino Detectors
Badal Bhalla, Fazlollah Hajkarim, Doojin Kim +1
Core-collapse supernovae, among the universe's most energetic events, offer a novel window into the dark sector by potentially producing a flux of boosted dark matter (BDM). We exp…
Primordial Gravitational Waves from Phase Transitions during Reheating
Amitayus Banik, Nicolás Bernal, Fazlollah Hajkarim
We study primordial gravitational waves (GWs) generated from first-order phase transitions (PTs) during cosmic reheating. Using a minimal particle physics model, and a general para…
QUPITER -- Space Quantum Sensors for Jovian-Bound Dark Matter
Yu-Dai Tsai, Fazlollah Hajkarim
We propose utilizing space quantum sensors to detect ultralight dark matter (ULDM) bound to planetary bodies, focusing on Jupiter as the heaviest planet in the solar system. Levera…