A5105657102- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
- Medical Imaging Techniques and Applications
- Radiation Therapy and Dosimetry
- Gamma-ray bursts and supernovae
- Atomic and Subatomic Physics Research
- Solar and Space Plasma Dynamics
- Cancer Genomics and Diagnostics
- Advanced Data Storage Technologies
- Crime, Illicit Activities, and Governance
- Geomagnetism and Paleomagnetism Studies
- Advanced Text Analysis Techniques
- Lung Cancer Treatments and Mutations
- Innovative Teaching and Learning Methods
- Banking stability, regulation, efficiency
- Cancer Treatment and Pharmacology
Deutsches Elektronen-Synchrotron DESY
2024-2025
Brandeis University
2023-2024
University of Freiburg
2023-2024
A. Alikhanyan National Laboratory
2024
Indian Institute of Technology Kanpur
2019-2024
Atlas Scientific (United States)
2024
The University of Adelaide
2023
Istanbul University
2023
National Research Centre for Grapes
2019-2022
Indian Institute of Science Education and Research Pune
2021
We present the measurement of cosmic ray proton spectrum from 50 TeV to 1.3 PeV using 7.81×106 extensive air shower events recorded by ground-based GRAPES-3 experiment between 1 January 2014 and 26 October 2015 with a live time 460 day. Our measurements provide an overlap direct observations satellite balloon-based experiments. The electromagnetic muon components in were measured dense array plastic scintillator detectors tracking telescope, respectively. relative composition primary data...
We investigate the properties of a possible low-lying scalar glueball as well ordinary scalar-quark states using an effective chiral Lagrangian which satisfies trace anomaly and U(1${)}_{\mathrm{A}}$ QCD. An interesting mass bound for lightest particle in scalar-singlet channel is discussed. Detailed arguments against existence very light (less than 400 MeV) are presented. It shown that introduction derivative-coupling term usual type linear \ensuremath{\sigma} model cures problem...
Abstract The GRAPES-3 experiment located in Ooty, India, samples the electron and muon components extensive air showers using an array of plastic scintillator detectors a telescope (G3MT) consisting proportional counters to study composition primary cosmic rays (PCRs) as well γ -ray sources TeV–PeV energy range. G3MT is designed with appropriate mass absorber shield electromagnetic hadronic shower detect muons above 1 GeV×sec( θ ) energy, incident from zenith angle . We developed simulation...
The world of international trade and finance is becoming increasingly complex, which has turned trade-based money laundering (TBML) into a major headache for banks regulatory agencies. Traditional ways spotting suspicious activities in finance—like manual checks rule-based systems—often struggle to keep up with the ever-changing tactics used by launderers. This paper dives how artificial intelligence (AI) machine learning (ML) can be leveraged improve detection TBML finance, particular focus...
The Moon blocks cosmic rays, causing a deficit in their flux from its direction. Characterizing this shadow is technique used by ray air shower experiments to calibrate angular resolution and validate the pointing accuracy. GRAPES-3 array, located Ooty, India consists of an array scintillator detectors large area muon telescope. It sensitive measurement gamma induced showers TeV-PeV energy range. timing measurements were improved after upgrading time-to-digital converters coaxial cables late...
Abstract The GRAPES-3 extensive air shower (EAS) array has been designed to study cosmic rays from 10 $$^{13}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow/> <mml:mn>13</mml:mn> </mml:msup> </mml:math> –10 $$^{16}$$ <mml:mn>16</mml:mn> eV. It employs 400 scintillator detectors spread across 25,000 m $$^{2}$$ <mml:mn>2</mml:mn> , mainly of cone-type and fiber-type, each covering a 1 area. These record EAS particle densities arrival times, which are crucial...
Effective field theory techniques provide us important tools to probe for physics beyond the Standard Model in a relatively model-independent way. In this work, we revisit $CP$-even dimension-6 purely gluonic operator investigate possible constraints on it by studying its effect top-pair production at LHC, particular high ${p}_{T}$ and ${m}_{t\overline{t}}$ tails of distribution. Cut-based analysis reveals that scale new when alone contributes process is greater than 3.6 TeV 95% C.L., which...
The GRAPES-3 experiment located in Ooty consists of an array 400 plastic scintillator detectors spread over area 25000𝑚 2 and a large (560 𝑚 ) muon telescope. Every day, the records about 3 million showers induced by interaction primary cosmic rays atmosphere. One objectives is to measure energy spectrum composition TeV-PeV range. However, some detected have cores outside array. This fraction increases with due higher lateral shower particles at energies. Identifying these events thus...
The GRAPES-3 (Gamma Ray Astronomy at PeV EnergieS-3) experiment has been designed to study the composition and energy spectrum of primary cosmic rays (PCRs) over TeV - range. It is equipped with 400 plastic scintillators covering an area 25000 m$^2$ a muon detector spread in 560 m$^2$. precise measurement particle densities from each very important for any air shower experiment. Photo-multiplier tubes (PMT) are widely used as transducer collect light produced medium electric signals. These...
The GRAPES-3 experiment is designed to perform precision studies of gamma-ray sources in the TeV-PeV energy region. It consists 400 plastic scintillator detectors spanning an effective area 25000 m^2 and a large (560 m^2) muon telescope which records ∼4 x 10^9 muons every day. With recent installation improved triggerless data acquisition (DAQ) system, information related recorded with timing resolution 10 ns. angular pointing accuracy upgraded has been validated by characterizing shadow...
A large area (560 m^2) muon telescope in the GRAPES-3 experiment at Ooty, India records intensity high cutoff rigidities (Rc) varies from 14–32 GV along 169 independent directions spanning a field of view 2.3 sr. The threshold energy recorded muons is sec(theta) GeV direction with zenith angle (theta) and average angular accuracy of∼4 degrees. directional capabilities are exploited for studying effect atmospheric pressure on flux as function Rc. It observed that barometric coefficient...
The GRAPES-3 is a high-altitude, near-equator extensive air shower array at Ooty, India which designed to observe cosmic and gamma-rays in TeV-PeV energy range. It consists of dense 400 scintillator detectors operating conjunction with 560 $m^2$ area muon telescope. Due recent improvements the measurements arrival time corrections for front curvature based on size age, angular resolution has been significantly improved. By leveraging resultant improved an efficient rejection ray background...
The GRAPES-3 extensive air shower (EAS) array located at Ooty is equipped with 400 plastic scintillator detectors spread over an area of 25000 m$^2$ and a muon telescope 560 built 3,712 proportional counters. One its principal objectives to measure the primary cosmic ray energy spectrum in TeV-PeV region. response photo-multiplier tubes (PMTs) used becomes nonlinear densities $>$ 50 particles per large EAS. We describe technique correct for nonlinearity these PMTs, thereby extending dynamic...