10 papers
Too Heavy to Hide: Gamma-Ray Constraints on Annihilating Dark Matter beyond Unitarity
Abhishek Dubey, Deep Jyoti Das, Akash Kumar Saha
The measurement of high energy diffuse gamma rays by various ground-based air shower detectors have opened a new chapter for high energy particle physics and astrophysics. The broa…
Hunting Sterile Neutrino Dark Matter in the MeV Gap
Shivam Gola, Akash Kumar Saha, Manibrata Sen
We investigate the sensitivities of upcoming MeV gamma-ray telescopes to sterile neutrino dark matter in the mass range . Sterile neutrinos in this regime can…
Hawking heating of neutron stars by dark matter
Akash Kumar Saha, Abhishek Dubey, Nirmal Raj
Interactions with particle dark matter could brighten old, isolated neutron stars to thermal luminosities detectable at current and next-generation telescopes. We present a novel m…
Hunting Primordial Black Hole Dark Matter in Lyman- Forest
Akash Kumar Saha, Abhijeet Singh, Priyank Parashari +1
A very pressing question in contemporary physics is the identity of Dark Matter (DM). Primordial Black Holes (PBHs) are one of the most well-motivated DM candidates. Light PBHs hav…
Breaking Dark: Hunting Heavy Decaying Dark Matter with Tibet AS and LHAASO-KM2A
Abhishek Dubey, Akash Kumar Saha
Recent measurements of diffuse sub-PeV gamma-rays by the Tibet AS and LHAASO collaborations have reshaped our understanding of the gamma-ray sky. Besides uncovering the nature…
Neutrinos from the Sun can discover dark matter-electron scattering
Tarak Nath Maity, Akash Kumar Saha, Sagnik Mondal +1
We probe dark matter-electron scattering using high-energy neutrino observations from the Sun. Dark matter (DM) interacting with electrons can get captured inside the Sun. These ca…