20 citations · 56 across the 15 of their papers we have counts for
17 papers · 1 filter
Mono-Z signal for dark matter searches at future lepton colliders and cosmological interpretation
Anupam Ghosh, Partha Kumar Paul, Abhik Sarkar +4
We investigate mono- signature at the future electron-positron collider within the dark matter effective field theory (DMEFT) framework, considering operators up to dimension si…
Vanilla Scotogenic Model at the future Muon Collider
Niloy Mondal, Dipankar Pradhan, Abhik Sarkar +2
The vanilla scotogenic model (VSM) featuring three right-handed neutrinos and an inert scalar doublet, offers a unified explanation of neutrino masses, dark matter (DM), and the ba…
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…
High energy probes of Higgs self-coupling via boson fusion at future lepton colliders
Amir Subba, Hrishikesh Deka, Subhaditya Bhattacharya +1
We investigate the sensitivity to the Higgs self-coupling through boson fusion di-Higgs production at CLIC with a center-of-mass energy of TeV. We study the interp…
Electroweak phase transition in SMEFT: Gravitational wave and collider complementarity
Sahabub Jahedi, Indrajit Saha, Abhik Sarkar
We study the first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena…
Probing CP-violating Higgs-Gauge couplings with Higgsstrahlung at collider
Amir Subba, Subhaditya Bhattacharya, Abhik Sarkar
We investigate the sensitivity of a future high-luminosity collider operating at to CP-violating and CP-conserving anomalous interactions v…
Lepton Collider as a Window to Reheating via Freezing Out Dark Matter Detection
Subhaditya Bhattacharya, Anupam Ghosh, Niloy Mondal +1
We investigate a particle dark matter (DM) scenario where the DM interaction with the Standard Model are mediated by a leptophilic effective operator. Unlike conventional WIMP scen…
Optimal estimation of Higgs-Gauge Boson couplings at the future colliders
Subhaditya Bhattacharya, Amir Subba, Abhik Sarkar
The proposed collider offers an ideal environment for precise estimation of Higgs boson properties which are of utmost importance to validate the Standard Model of particl…
Lepton flavor violating top quark FCNC processes at the TRISTAN
Abhik Sarkar
We investigate charged lepton flavor violating top quark flavor-changing neutral current interactions at the proposed asymmetric muon-electron collision stage of the TRISTAN col…
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…
Probing lepton number violating SMEFT operators at the same-sign muon collider
Subhaditya Bhattacharya, Soumyajit Datta, Abhik Sarkar
We investigate lepton number violation (LNV) induced by dimension-seven Standard Model Effective Field Theory (SMEFT) operators in the context of same-sign muon colliders.…
The Influence of Lepton Portal on the WIMP-pFIMP framework
Jayita Lahiri, Dipankar Pradhan, Abhik Sarkar
The dynamics and detection possibility of a pseudo-FIMP (pFIMP) dark matter (DM) in the presence of a thermal DM have been studied in different contexts. The pFIMP phenomenology la…
Lepton collider as a window to reheating via freezing in dark matter detection. Part II
Basabendu Barman, Subhaditya Bhattacharya, Sahabub Jahedi +2
Dark matter (DM) genesis via Ultraviolet (UV) freeze-in embeds the seed of reheating temperature and dynamics in its relic density. Thus, discovery of such a DM candidate can possi…
Exploring Optimal Sensitivity of Lepton Flavor Violating Effective Couplings at the Colliders
Sahabub Jahedi, Abhik Sarkar
We analyze lepton flavor violation (LFV) using the Standard Model Effective Field Theory (SMEFT) framework at the future lepton colliders. Our focus is on the associated production…
Lepton collider as a window to reheating via freezing in dark matter detection. Part I
Basabendu Barman, Subhaditya Bhattacharya, Sahabub Jahedi +2
We propose a methodology to infer the reheat temperature () of the Universe from the collider signal of freezing in dark matter (DM). We demonstrate it for the mono-…
Higgs couplings in SMEFT via Zh production at the HL-LHC
Subhaditya Bhattacharya, Sanjoy Biswas, Abhik Sarkar
We study the Higgs couplings involved in the associated production mode at the Large Hadron Collider (LHC) in presence of Higgs-gauge boson coupling modifiers via framewor…
Probing flavor constrained SMEFT operators through production at the Muon collider
Subhaditya Bhattacharya, Sahabub Jahedi, Soumitra Nandi +1
We investigate flavour violating four Fermi Standard Model Effective Field Theory (SMEFT) operators of dimension-six that can be probed via production at…