A5039611673- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Computational Physics and Python Applications
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Particle Accelerators and Free-Electron Lasers
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Distributed and Parallel Computing Systems
- Nuclear reactor physics and engineering
- International Science and Diplomacy
- Gamma-ray bursts and supernovae
- Nuclear physics research studies
- Radioactivity and Radon Measurements
- Superconducting Materials and Applications
- Big Data Technologies and Applications
Visva-Bharati University
2015-2025
Delhi Technological University
2025
Institute of High Energy Physics
2015-2024
Saha Institute of Nuclear Physics
2019-2024
Techno India University
2024
A. Alikhanyan National Laboratory
2022-2024
Tata Institute of Fundamental Research
2014-2023
Indian Institute of Technology Madras
2023
National Institute of Animal Nutrition and Physiology
2023
European Organization for Nuclear Research
2012-2018
We present measurements of the reduction light output by plastic scintillators irradiated in CMS detector during 8 TeV run Large Hadron Collider and show that they indicate a strong dose rate effect. The damage for given is larger lower exposures. results agree with previous effects, but are stronger due to very low rates probed. scaling consistent expected from diffusion effects.
We consider the prospect of lightest neutralino (${\tilde \chi}_1^0$) as a dark matter candidate in light recent interesting observations from XENON100 and CDMS-II experiments minimal supergravity framework with large $\tan\beta$ non-vanishing $A_0$. Within WMAP satisfied zone, there is direct detection reach lighter ${\tilde \chi}_1^0$ Higgs boson mediated resonance annihilation domain above scenario. It seen that heavier plays dominating role \chi}_1^0-p$ cross-section associated zone...
The PMTs of the CMS Hadron Forward calorimeter were found to generate a large size signal when their windows traversed by energetic charged particles. This signal, which is due Čerenkov light production at PMT window, could interfere with and mislead measurements. In order find viable solution this problem, response four different types muons traversing orientations measured H2 beam-line CERN. Certain kinds thinner show significantly lower direct muon incidence. For anode PMT, simple...
We consider a scenario of minimal supersymmetric standard model with $R$-parity violation, where the lightest particle is lighter bottom squark $({\stackrel{\texttildelow{}}{b}}_{1})$. study production pair at LHC and their subsequent decays through baryon number violating operators leading to top two light quarks. Looking for both semileptonic fully hadronic (no leptons) final states, we perform cut-based as well multivariate analyses (MVA) estimate signal significance 13 TeV run LHC. find...
The scalar partner of the top quark is relatively light in many models supersymmetry breaking. We study production squarks (stops) at Tevatron collider and their subsequent decay through baryon-number violating couplings such that final state contains no leptons. Performing a detector-level analysis, we demonstrate that, even absence leptons or missing energy, stop masses upto 210 \gev/c^2 can be accessible Tevatron.
The search for the top squark (t˜1) within kinematic reach of Tevatron Run II is great contemporary interest. Such a t˜1 can explain baryon asymmetry universe provided 120 GeV⩽mt˜1⩽mt. Moreover if Δm≡mt˜1−mχ˜10 small, where χ˜10 lightest supersymmetric particle (LSP), dark matter relic density as obtained from WMAP data may be explained via t˜1-LSP coannihilation. In this scenario decay t˜1→cχ˜10 likely to occur with 100% branching ratio but small Δm conventional di-jet+E̸T signal becomes...
A readout box prototype for the CMS Hadron Forward calorimeter upgrade was built and tested in CERN H2 beamline. The designed to enable simultaneous tests of different options four anode PMTs, new front-end electronics design cabling. response PMTs with uniform background minimal. Multi-channel further enhanced elimination. Passing all electronic, mechanical physics tests, proved be capable providing forward hadron operational requirements era.
Recently CDF has reported a 4.1 sigma excess in the distribution of dijet invariant mass between 120-160 GeV Wjj event sample 7.3 fb^{-1} data, which generated considerable interest. We offer possible explanation this observation general framework MSSM with R-parity violation through resonance production tau sneutrino decaying into LSP stau_1 and W boson. also give predictions scenario for LHC operating at 7 TeV center energy.
Analyzing the $\ell +n$-$jets+ \met$ (where $n \ge 2 $), data from Run-I of Tevatron using Bayesian technique, we obtain model independent limits on product $\br(\lstop\ra be^{+}ν_e \lspone) \times \br(\lstop^{*}\ra \bar{b}q\bar{q^{\prime}}\lspone)$ for different values lighter top squark($\lstop$) mass and lightest supersymmetric particle($\lspone$) mass. The SUSY signals have been simulated by interfacing 4-body decay $\lstop$ at parton level with event generator PYTHIA. These translated...
One of the main goals NASA's TESS (Transiting Exoplanet Survey Satellite) mission is discovery Earth-like planets around nearby M-dwarf stars. Here, we present and validation three new short-period Earth-sized orbiting M-dwarfs: TOI- 5720b, TOI-6008b TOI-6086b. We combined data, ground-based multi-color light curves, optical near-infrared spectroscopy, Subaru/IRD RVs data to validate planetary candidates constrain physical parameters systems. In addition, used archival images,...
The proliferation of sensors brings an immense volume spatio-temporal (ST) data in many domains for various purposes, including monitoring, diagnostics, and prognostics applications. Data curation is a time-consuming process large data, making it challenging expensive to deploy analytics platforms new environments. Transfer learning (TL) mechanisms promise mitigate sparsity model complexity by utilizing pre-trained models task. Despite the triumph TL fields like computer vision natural...
The hot and dense QCD matter, known as the Quark-Gluon Plasma (QGP), is explored through heavy-ion collision experiments at LHC RHIC. Jets heavy flavors, produced from initial hard scattering, are used probes to study properties of QGP. Recent experimental observations on jet quenching heavy-flavor suppression have strengthened our understanding, allowing for fine-tuning theoretical models in probes. second conference, HOT Matter 2024, was organized bring community together discussions key...
In some extensions of the standard model with extended Higgs sectors, events from new particle production may pass selection criteria for search in different channels at LHC - 14 TeV and mimic signals. This intriguing possibility is illustrated by PYTHIA based simulations using several representative points parameter space minimal supersymmetric (MSSM) including a point supergravity consistent Dark matter (DM) relic density data. Our explore interplay between charged signal typical...
We study the light output, collection efficiency and signal timing of a variety organic scintillators that are being considered for upgrade hadronic calorimeter CMS detector. The experimental data collected at H2 test-beam area CERN, using 150 GeV muon beam. In particular, we investigate usage over-doped green-emitting plastic scintillators, two solutions have not been extensively considered. present energy distribution in plastic-scintillator tiles, hit as function position, blue green...
Production of quarks and gluons in hadron collisions tests Quantum Chromodynamics (QCD) over a wide range energy. Models QCD are implemented event generators to simulate evolution into jets hadrons. pythia8 uses the parton shower model for simulating particle is optimized using experimental observations. Recent measurements shape variables jet cross-sections [Formula: see text] at TeV Large Hadron Collider have been used optimize as PYTHIA8.