3 papers
hep-ph2026
Probing Invisible Fermions in via Angular Observables
Lipika Kolay, Soumitra Nandi, Shantanu Sahoo
Semileptonic decays provide a sensitive probe of light invisible particles, such as sterile neutrinos or dark-sector fermions. Within a general we…
hep-ph2025
Up-type FCNC in presence of Dark Matter
Subhaditya Bhattacharya, Lipika Kolay, Dipankar Pradhan +1
Dark Matter (DM) is a known unknown. Apart, current experimental constraints on flavor-changing neutral current (FCNC) processes involving up-type quarks also provide scope to expl…
hep-ph2025
Constraining anomalous and related SMEFT couplings using low-energy and electroweak precision observables
Subhajit Kala, Lipika Kolay, Lopamudra Mukherjee +1
We investigate constraints on couplings of Standard Model effective field theory (SMEFT) operators contributing to effective vertex at tree level. We study the one-loop level…