Research

I study

physics beyond the Standard Model, dark matter, astroparticle physics, cosmology, particle colliders.

Here are summaries of what I have discovered and co-discovered.

See who peoples our research group.

Selected publications

[Full list in Google Scholar, InspireHEP, arXiv.]

*featured as Editors' Suggestion.

Exploring reheated sub-40000 Kelvin neutron stars with JWST, ELT, and TMT,

N. Raj, P. Shivanna, G. N. Rachh,

Phys. Rev. D 109 (2024), 123040*
Subhalos in neutron stars, cosmic rays and old rocks,
J. Bramante, B. Kavanagh, N. Raj,
Phys. Rev. Lett. 128 (2022) 23, 231801

Neutron star internal heating constraints on mirror matter,
D. McKeen, M. Pospelov, N. Raj,
Phys. Rev. Lett. 127 (2021), 061805

Breaking up the proton: an affair with dark forces,
G. Kribs, D. McKeen, N. Raj,
Phys. Rev. Lett. 126 (2021), 011801

Hydrogen portal to exotic radioactivity,
D. McKeen, M. Pospelov, N. Raj,
Phys. Rev. Lett. 125 (2020) 23, 231803*

Neutrinos from Type Ia and failed core-collapse supernovae at dark matter detectors,
N. Raj,
Phys. Rev. Lett. 124 (2020) 14, 141802

An infrared window on dark kinetic heating of neutron stars,
M. Baryakhtar, J. Bramante, S. Li, T. Linden, N. Raj,
Phys. Rev. Lett. 119 (2017) 13, 131801

Non-resonant exotica in LHC dilepton angular spectra,
N. Raj,
Phys. Rev. D 95 (2017) 1, 015011

First laboratory constraints on Planck-scale mass dark matter,
DEAP-3600 collaboration & N. Raj,
Phys. Rev. Lett. 128 (2022), 011801