Publications (16)
Dark Sector extensions of the Littlest Seesaw in the presence of Primordial Black Holes
Baradhwaj Coleppa, Kousik Loho, Sujay Shil
The Littlest Seesaw model is a very well motivated dark matter model. Here we consider an extension of that model with an additional scalar and an additional fermionic particle und…
Asymmetric Self-interacting Dark Matter via Dirac Leptogenesis
Manoranjan Dutta, Nimmala Narendra, Narendra Sahu +1
The nature of neutrinos, whether Dirac or Majorana, is hitherto not known. Assuming that the neutrinos are Dirac, which needs to be an exact symmetry, we make an attempt to e…
Optimizing The Cut And Count Method In Phenomenological Studies
Baradhwaj Coleppa, Gokul B. Krishna, Agnivo Sarkar +1
We introduce an optimization technique to discriminate signal and background in any phenomeno- logical study based on the cut and count-based method. The core ideas behind this tec…
Dark matter to baryon ratio from scalar triplets decay in type-II seesaw
Nimmala Narendra, Narendra Sahu, Sujay Shil
We propose a minimal model for the cosmic coincidence problem and neutrino mass in a type-II seesaw scenario. We extend the standard model of particle phy…
Right Handed Neutrinos, TeV Scale BSM Neutral Higgs and FIMP Dark Matter in EFT Framework
Geneviève Bélanger, Sarif Khan, Rojalin Padhan +2
We consider an effective field theory framework with three standard model (SM) gauge singlet right handed neutrinos, and an additional SM gauge singlet scalar field. The framework…
Automated Predictions from Polarized Matrix Elements
Diogo Buarque Franzosi, Olivier Mattelaer, Richard Ruiz +1
The anticipated experimental resolution and data cache of the High Luminosity Large Hadron Collider will enable precision investigations of polarization in multiboson processes. Th…
Triple gauge coupling analysis using boosted 's and 's
O. J. P. Ãboli, Tathagata Ghosh, Matheus Martines +1
We analyze the Large Hadron Collider potential to study triple couplings of the electroweak gauge bosons using their boosted hadronic decays. Deviations from Standard Model predict…
Testing electroweak scale seesaw models at and colliders
Arindam Das, Sanjoy Mandal, Sujay Shil
We investigate the possibilities of probing the electroweak scale seesaw scenarios such as type-I, type-II and type-III seesaw at and colliders. For the case of type…
Probing the Type-II Seesaw Mechanism through the Production of Higgs Bosons at a Lepton Collider
Pankaj Agrawal, Manimala Mitra, Saurabh Niyogi +2
We investigate the production and decays of doubly-charged Higgs bosons for the Type-II seesaw mechanism at an collider with two center of mass energies, $\sqrt{s}=38…
VBSCan Mid-Term Scientific Meeting
Julien Baglio, Alessandro Ballestrero, Riccardo Bellan +48
This document summarises the talks and discussions happened during the VBSCan Mid-Term Scientific Meeting workshop. The VBSCan COST action is dedicated to the coordinated study of…
New Physics Search at the CEPC: a General Perspective
Xiaocong Ai, Stefan Antusch, Peter Athron +211
The Circular Electron-Positron Collider (CEPC), a proposed next-generation Higgs factory, provides new opportunities to explore physics beyond the Standard Model (SM). With its cle…
Probing Electroweak Phase Transition in Extended Singlet Scalar Model with Resonant production in Channel using Parameterized Machine Learning
Pritam Palit, Sujay Shil
In this paper, a collider signature of a heavy Higgs boson at TeV HL-LHC is studied, where the heavy Higgs boson decays into a pair of standard model Higgs boson, which furthe…
Same-Sign Tetralepton Signature at Large Hadron Collider, and future Collider
Eung Jin Chun, Sarif Khan, Sanjoy Mandal +2
We analyze a novel signature of the type II seesaw model - same-sign tetra-lepton signal arising from the mixing of neutral Higgs bosons and their subsequent decays to singly and d…
Fat Jet Signature of a Heavy Neutrino at Lepton Collider
Sabyasachi Chakraborty, Manimala Mitra, Sujay Shil
We explore the discovery prospect of a very heavy neutrino at the proposed collider for two different c.m.energies TeV and 3 TeV. We consider production of…
Heavy Majorana neutrino pair production from at hadron and lepton colliders
Arindam Das, Sanjoy Mandal, Takaaki Nomura +1
A gauged U extension of the Standard Model (SM) is a simple and anomaly free framework where three generations of Majorana type right-handed neutrinos (RHNs) are introduced to…
Baryogenesis via Leptogenesis from Asymmetric Dark Matter and radiatively generated Neutrino mass
Nimmala Narendra, Sudhanwa Patra, Narendra Sahu +1
We propose an extension of the standard model (SM) by including a dark sector comprising of three generations of heavy right-handed neutrinos, a singlet scalar and a singlet Dirac…