11 papers
Probing long-range forces with supernova neutronization burst neutrinos
Amol Dighe, Sadashiv Sahoo, Manibrata Sen
Ultralight gauge bosons associated with flavour-dependent leptonic symmetries generate long-range potentials that can modify neutrino flavour evolution over astrophysical distances…
Charged Lepton Flavor Violation at Neutrino Telescopes
Writasree Maitra, Carlos A. Argüelles, P. S. Bhupal Dev +2
Any observation of charged lepton flavor violation (CLFV) would be a clear signal of beyond-the-Standard-Model physics. Here, we propose a novel CLFV search using neutrino telescop…
Bose-enhanced Neutrino Decays in a Thermal Medium
Yuber F. Perez-Gonzalez, Manibrata Sen, Walter Tangarife
We compute the decay width of neutrinos in a thermal medium using finite-temperature quantum field theory, focusing on non-standard decays into lighter neutrinos and a scalar or li…
Dynamic Neutrino Mass Ordering and Its Imprint on the Diffuse Supernova Neutrino Background
Yuber F. Perez-Gonzalez, Manibrata Sen
Neutrino masses may have evolved dynamically throughout the history of the Universe, potentially leading to a mass spectrum distinct from the normal or inverted ordering observed t…
Shedding light on dark matter spikes through refractive neutrino masses
Federica Pompa, Manibrata Sen
The origin of neutrino mass remains an open question in particle physics. One intriguing possibility is that neutrinos are massless in vacuum but acquire an effective refractive ma…
Amplifying muon-to-positron conversion in nuclei with ultralight dark matter
Purushottam Sahu, Manibrata Sen
We present an analysis of the lepton-number and lepton-flavour-violating process of muon-to-positron conversion , in the presence of an ultralight sc…