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Time-delayed gamma-ray signatures of heavy axions from core-collapse supernovae
Joshua N. Benabou, Claudio Andrea Manzari, Yujin Park +3
Heavy axions that couple to both quantum electrodynamics and quantum chromodynamics with masses on the order of MeV - GeV and high-scale decay constants in excess of G…
Axion mass prediction from adaptive mesh refinement cosmological lattice simulations
Joshua N. Benabou, Malte Buschmann, Joshua W. Foster +1
The quantum chromodynamics (QCD) axion arises as the pseudo-Goldstone mode of a spontaneously broken abelian Peccei-Quinn (PQ) symmetry. If the scale of PQ symmetry breaking occurs…
Search for Axions from Magnetic White Dwarfs with Chandra
Orion Ning, Christopher Dessert, Vi Hong +1
Low mass axion-like particles could be produced in abundance within the cores of hot, compact magnetic white dwarf (MWD) stars from electron bremsstrahlung and converted to detecta…
CTA and SWGO can Discover Higgsino Dark Matter Annihilation
Nicholas L. Rodd, Benjamin R. Safdi, Weishuang Linda Xu
Thermal higgsino dark matter (DM), with a mass near 1.1 TeV, is one of the most well-motivated and untested DM candidates. Leveraging recent hydrodynamic cosmological simulations t…
Supernova axions convert to gamma-rays in magnetic fields of progenitor stars
Claudio Andrea Manzari, Yujin Park, Benjamin R. Safdi +1
It has long been established that axions could have been produced within the nascent proto-neutron-star formed following the type II supernova SN1987A, escaped the star due to thei…
Leading Axion-Photon Sensitivity with NuSTAR Observations of M82 and M87
Orion Ning, Benjamin R. Safdi
We perform the most sensitive search to-date for the existence of ultralight axions using data from the NuSTAR telescope. We search for stellar axion production in the M82 starburs…