S. Bhattacharya
A5103786984- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- International Science and Diplomacy
- Big Data Technologies and Applications
- Scientific Computing and Data Management
- Nuclear reactor physics and engineering
- Gaussian Processes and Bayesian Inference
- Time Series Analysis and Forecasting
- Radiation Therapy and Dosimetry
- Gas Dynamics and Kinetic Theory
- Optical properties and cooling technologies in crystalline materials
- advanced mathematical theories
Northwestern University
2017-2025
Deutsches Elektronen-Synchrotron DESY
2022-2025
Saha Institute of Nuclear Physics
2016-2025
Wayne State University
2024-2025
Wayne State College
2024
Institute of High Energy Physics
2017-2024
University of Antwerp
2024
A. Alikhanyan National Laboratory
2022-2024
Tata Institute of Fundamental Research
2000-2023
University of Notre Dame
2023
Abstract The upgrade of the CMS experiment for high luminosity operation LHC comprises replacement current endcap calorimeter by a granularity sampling (HGCAL). electromagnetic section HGCAL is based on silicon sensors interspersed between lead and copper (or tungsten) absorbers. hadronic uses layers stainless steel as an absorbing medium active in regions radiation exposure, scintillator tiles directly read out photomultipliers remaining regions. As part development detector its readout...
Streams of event weights in particle-level Monte Carlo generators are a convenient and immensely CPU-efficient approach to express systematic uncertainties phenomenology calculations, providing variations on the nominal prediction within single sample. But lack common standard for labelling these variation streams across different tools has proven be major limitation event-processing analysers alike. Here we propose well-defined, extensible community naming, ordering, interpretation weight...
Abstract As part of its HL-LHC upgrade program, the CMS collaboration is developing a High Granularity Calorimeter (CE) to replace existing endcap calorimeters. The CE sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic (CE-E) hadronic (CE-H) compartments. will be built ∼30,000 hexagonal silicon modules. Prototype modules have been constructed 6-inch sensors cell areas 1.1 cm 2 , SKIROC2-CMS ASIC. Beam tests different configurations were...
This note provides a comprehensive overview of tools for predicting observables in the Standard Model effective field theory (SMEFT) at both tree level and one loop using event generators. We evaluate three primary methodologies–event reweighting, separate simulation squared matrix elements, full SMEFT process simulation–focusing on their statistical performance, computational efficiency, potential biases. Each approach is assessed terms its accuracy, highlighting trade-offs between...
We present the prospects for discovery or exclusion of heavy vector-like charge 2/3 quarks, T, in proton-proton collisions at two center-of-mass energies, 14 and 33 TeV LHC. In this note, pair production T quark its antiparticle, with decays to W boson a b (Wb), top Higgs (tH), Z (tZ) are investigated. $b\bar b$ $W^+W^-$ final states selected study.
Snowmass is a US long-term planning study for the high-energy community by American Physical Society's Division of Particles and Fields. For its simulation studies, opportunistic resources are harnessed using Open Science Grid infrastructure. Late binding grid technology, GlideinWMS, was used distributed scheduling jobs across many sites mainly in US. The pilot infrastructure also uses Parrot mechanism to dynamically access CvmFS order ascertain homogeneous environment nodes. This report...
As part of its HL-LHC upgrade program, the CMS collaboration is replacing existing endcap calorimeters with a high-granularity calorimeter (CE). The new sampling unprecedented transverse and longitudinal readout for both electromagnetic hadronic compartments. Due to compactness, intrinsic time resolution, radiation hardness, silicon has been chosen as active material regions exposed higher levels. sensors are fabricated 20 cm (8") wide hexagonal wafers segmented into several hundred pads...
The precise measurement of physics observables and the test their consistency within standard model (SM) are an invaluable approach, complemented by direct searches for new particles, to determine existence beyond (BSM). Studies massive electroweak gauge bosons (W Z bosons) a promising target indirect BSM searches, since interactions photons gluons strongly constrained unbroken symmetries. They can be divided into two categories: (a) Fermion scattering processes mediated s- or t-channel W/Z...
This note gives an overview of the tools for predicting expectations in Standard Model effective field theory (SMEFT) at tree level and one loop available through event generators. Methods reweighting, separate simulation squared matrix elements, full SMEFT process are compared terms statistical efficacy potential biases.
Over the course Run 1 and 2 of Large Hadron Collider (LHC), more than 150/fb data has been collected by Compact Muon Solenoid (CMS) experiment at Collider. This large dataset facilitated precision measurement several Standard Model (SM) processes. Diboson processes, where two gauge bosons are simultaneously produced in one LHC collision event, fall within category processes that can be measured with precision. These feature trilinear coupling provide important tests non-Abelian structure SM....
We present searches for heavy top and bottom quark partners at CMS using data collected sqrt(s) = 8 TeV. Such partners, if vector-like, occur in models such as the Little Higgs Large Extra Dimensions. Fermionic could also composite models. The presented here span a wide range of final states, from lepton plus jets to multi-leptonic, exclusion limits are set on mass production cross sections function branching ratios quarks their decay products.
The Bayesian Block algorithm, originally developed for applications in astronomy, can be used to improve the binning of histograms high energy physics. visual improvement dramatic, as shown here with two simple examples. More importantly, this algorithm and histogram is produces a non-parametric density estimate, providing description background distributions that does not suffer from arbitrariness ad hoc analytical functions. statistical power an hypothesis test based on Blocks nearly good...