518 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Technology GandhinagarIN282 papers
- Tata Institute of Fundamental ResearchIN161 papers
- Centre National de la Recherche ScientifiqueFR100 papers
- Indian Institute of AstrophysicsIN92 papers
- Chinese Academy of SciencesCN71 papers
- Aryabhatta Research Institute of Observational SciencesIN66 papers
- Inter-University Centre for Astronomy and AstrophysicsIN62 papers
- Harish-Chandra Research InstituteIN54 papers
- Indian Institute of Science BangaloreIN54 papers
- Indian Institute of Technology BombayIN54 papers
- Udaipur Solar ObservatoryIN53 papers
- California Institute of TechnologyUS46 papers
30 papers · 2 filters
Scalar Dark Matter and Radiative Dirac neutrino mass in an extended model
Subhasmita Mishra, Nimmala Narendra, Prafulla Kumar Panda +1
We explore a gauged extension of standard model with inclusion of three right-handed neutrinos of exotic charges to cancel the gauge anomaly. Non-trivial transfo…
Self-interacting freeze-in dark matter in a singlet doublet scenario
Purusottam Ghosh, Partha Konar, Abhijit Kumar Saha +1
We examine the non-thermal production of dark matter in a scalar extended singlet doublet fermion model where the lightest admixture of the fermions constitutes a suitable dark mat…
Anomaly detection in high-energy physics using a quantum autoencoder
Vishal S. Ngairangbam, Michael Spannowsky, Michihisa Takeuchi
The lack of evidence for new interactions and particles at the Large Hadron Collider has motivated the high-energy physics community to explore model-agnostic data-analysis approac…
and Quest for New Physics
Anshika Bansal, Namit Mahajan, Dayanand Mishra
Charged current semi-leptonic decays of -meson are important for a precise determination of the CKM elements. The CKM elements and show a discrepancy betwe…
Neutrino propagation when mass eigenstates and decay eigenstates mismatch
Dibya S. Chattopadhyay, Kaustav Chakraborty, Amol Dighe +2
We point out that the Hermitian and anti-Hermitian components of the effective Hamiltonian for decaying neutrinos cannot be simultaneously diagonalized by unitary transformations f…
Precise probing of the inert Higgs-doublet model at the LHC
Anupam Ghosh, Partha Konar, Satyajit Seth
The inert Higgs-doublet model provides a simple framework to accommodate a viable Higgs portal scalar dark matter candidate, together with other heavier scalars of mass 100 GeV or…
Leptogenesis and eV scale sterile neutrino
Srubabati Goswami, Vishnudath K. N., Ananya Mukherjee +1
We consider the minimal extended seesaw model which can accommodate an eV scale sterile neutrino. The scenario also includes three heavy right handed neutrinos in addition to the l…
Constraining general U(1) interactions from neutrino-electron scattering measurements at DUNE near detector
Kaustav Chakraborty, Arindam Das, Srubabati Goswami +1
The neutrino-electron scattering process is a powerful tool to explore new physics beyond the standard model. Recently the possibility of DUNE Near Detector (ND) to constrain vario…
Non-thermal Origin of Asymmetric Dark Matter from Inflaton and Primordial Black Holes
Basabendu Barman, Debasish Borah, Suruj Jyoti Das +1
We study the possibility of cogenesis of baryon and dark matter (DM) from the out-of-equilibrium CP violating decay of right handed neutrino (RHN) that are dominantly of non-therma…
Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging measurements
Tanmay Kumar Poddar
The geodetic and frame-dragging effects are the direct consequences of the spacetime curvature near Earth which can be probed from the Gravity probe B (GP-B) satellite. The satelli…
Ultralight dark matter: constraints from gravitational waves and other astrophysical observations
Tanmay Kumar Poddar
The orbital period loss of the compact binary systems is the first indirect evidence of gravitational waves which agrees well with Einstein's general theory of relativity to a very…
Freeze-in Dark Matter Through Forbidden Channel in
Partha Konar, Rishav Roshan, Sudipta Show
We examine a scenario for freeze-in production of dark matter, which occurs due to the large thermal correction to the mass of a decaying mediator particle present in the thermal b…
Scalar Triplet Flavor Leptogenesis with Dark Matter
Arghyajit Datta, Rishav Roshan, Arunansu Sil
We investigate a simple variant of type-II seesaw, responsible for neutrino mass generation, where the particle spectrum is extended with one singlet right-handed neutrino and an i…
Energy-weighted Message Passing: an infra-red and collinear safe graph neural network algorithm
Partha Konar, Vishal S. Ngairangbam, Michael Spannowsky
Hadronic signals of new-physics origin at the Large Hadron Collider can remain hidden within the copiously produced hadronic jets. Unveiling such signatures require highly performa…
Use of polarization in to measure the triple-Higgs coupling
Kumar Rao, Saurabh D. Rindani, Priyanka Sarmah +1
It is shown that a certain angular asymmetry of charged leptons produced in the decay of in the process , related to a tensor polarization component of the ,…
Leptogenesis and fermion mass fit in a renormalizable model
V. Suryanarayana Mummidi, Ketan M. Patel
A non-supersymmetric renormalizable model is investigated for its viability in explaining the observed fermion masses and mixing parameters along with the baryon asymmetry…
Non-minimally Coupled Vector Boson Dark Matter
Basabendu Barman, Nicolás Bernal, Ashmita Das +1
We consider a simple abelian vector dark matter (DM) model, where {\it only} the DM couples non-minimally to the scalar curvature of the backg…
Weak scale right-handed neutrino as pseudo-Goldstone fermion of spontaneously broken
Anjan S. Joshipura, Ketan M. Patel
Possibility of a Right-Handed (RH) neutrino being a Goldstone fermion of a spontaneously broken global symmetry in a supersymmetric theory is considered. This fermion obtain…
TeV Scale Modified Type-II Seesaw and Dark Matter in a Gauged Symmetric Model
Purusottam Ghosh, Satyabrata Mahapatra, Nimmala Narendra +1
In an endeavor to explain the light neutrino masses and dark matter (DM) simultaneously, we study a gauged extension of the standard model (SM). The neutrino masse…
Aspects of gravitational decoherence in neutrino lensing
Himanshu Swami, Kinjalk Lochan, Ketan M. Patel
We study decoherence effects in neutrino flavour oscillations in curved spacetime with particular emphasis on the lensing in a Schwarzschild geometry. Assuming Gaussian wave packet…
Anomaly detection with Convolutional Graph Neural Networks
Oliver Atkinson, Akanksha Bhardwaj, Christoph Englert +2
We devise an autoencoder based strategy to facilitate anomaly detection for boosted jets, employing Graph Neural Networks (GNNs) to do so. To overcome known limitations of GNN auto…
The process at next-to-next-to-leading order
John M. Campbell, Giuseppe De Laurentis, R. Keith Ellis +1
We present details of the calculation of the process at next-to-next-to-leading order in QCD, calculated using the jettiness slicing method. The calculation is…
Constraints on axionic fuzzy dark matter from light bending and Shapiro time delay
Tanmay Kumar Poddar
Ultralight axion like particles (ALPs) of mass with axion decay constant can be candidates for fuzzy dark matte…
Freeze-in production of sterile neutrino dark matter in a gauged U model with inverse seesaw
Arindam Das, Srubabati Goswami, Vishnudath K. N. +1
We consider a general, anomaly free U extension of the Standard Model (SM) where the neutrino mass is generated at the tree level via the inverse seesaw mechanism. The…