7 papers
Electric Dipole Moments as Precision Probes of CP-Violating Top-Quark Interactions in SMEFT
Subhajit Kala, Soumitra Nandi, Sonakshi Saha
Electric dipole moments (EDMs) provide some of the most sensitive probes of CP-violating interactions beyond the Standard Model (SM). Within the Standard Model Effective Field Theo…
Anomalous Dimensions, Matching, and Phenomenology of Dirac Fermionic Dark Matter Effective Interactions
Subhajit Kala, Lipika Kolay, Soumitra Nandi
We explore a fermionic dark matter (DM) extension of the Standard Model Effective Field Theory (SMEFT) and establish a complete renormalisation-group framework for its phenomenolog…
Exploring -mediated heavy FCNCs at the FCC-ee
Abhik Sarkar, Subhajit Kala, Amir Subba +1
The flavor structure of the Standard Model (SM) remains one of the most compelling questions in particle physics, with the third generation being particularly intriguing due to its…
A Study on Top Quark FCNC Interactions in SMEFT Framework
Subhajit Kala, Soumitra Nandi
We present a model-independent study of rare flavour-changing neutral current (FCNC) interactions of the top quark within the Standard Model Effective Field Theory (SMEFT). Matchin…
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…
Quantum ballet by gravitational waves: Generating entanglement's dance of revival-collapse and memory within the quantum system
Partha Nandi, Bibhas Ranjan Majhi, Nandita Debnath +1
Recent proposals are emerging for the experimental detection of entanglement mediated by classical gravity, carrying significant theoretical and observational implications. In fact…
Magnetically Induced Schrödinger Cat States: The Shadow of a Quantum Space
Partha Nandi, Nandita Debnath, Subhajit Kala +1
Schrödinger cat states, which are superpositions of macroscopically distinct states, are potentially critical resources for upcoming quantum information technologies. In this paper…