3 papers
hep-ph2026
Finite Temperature NLO Corrections in Relativistic Scatterings: Implications for Dark Matter Freeze-In
Sampriti Roy, Pritam Sen, Satyanarayan Mukhopadhyay
We study the next-to-leading order (NLO) virtual and thermal corrections to relativistic scattering processes involving scalar particles in the early Universe the…
hep-lat2025
An effective field theory for thermal QCD with 2+1 flavours
Sourendu Gupta, Pritam Sen, Rishi Sharma
We write a long-distance effective field theory (EFT) for QCD at finite temperature just below the crossover temperature . The low energy constants (LECs) of this EFT are obta…
hep-ph2025
Thermal corrections to dark matter annihilation with real photon emission/absorption
Prabhat Butola, D. Indumathi, Pritam Sen
The dark matter relic density is being increasingly precisely measured. This relic density is theoretically determined by a Boltzmann equation which computes the dark matter distri…