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Selection Rule for Enhanced Dark Matter Annihilation
Anirban Das, Basudeb Dasgupta
We point out a selection rule for enhancement (suppression) of odd (even) partial waves of dark matter coannihilation or annihilation using Sommerfeld effect. Using this, the usual…
Fast neutrino flavor conversions near the supernova core with realistic flavor-dependent angular distributions
Basudeb Dasgupta, Alessandro Mirizzi, Manibrata Sen
It has been recently pointed out that neutrino fluxes from a supernova can show substantial flavor conversions almost immediately above the core. Using linear stability analyses an…
Self-induced temporal instability from a neutrino antenna
Francesco Capozzi, Basudeb Dasgupta, Alessandro Mirizzi
It has been recently shown that the flavor composition of a self-interacting neutrino gas can spontaneously acquire a time-dependent pulsating component during its flavor evolution…
Photons, Photon Jets and Dark Photons at 750 GeV and Beyond
Basudeb Dasgupta, Joachim Kopp, Pedro Schwaller
In new physics searches involving photons at the LHC, one challenge is to distinguish scenarios with isolated photons from models leading to "photon jets". For instance, in the con…