A5017161034- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Quantum and electron transport phenomena
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Statistical Methods and Inference
- Magnetic confinement fusion research
- Atomic and Subatomic Physics Research
- Quantum many-body systems
- Astrophysics and Cosmic Phenomena
- Optical Network Technologies
- Distributed and Parallel Computing Systems
- Manufacturing Process and Optimization
- Cold Atom Physics and Bose-Einstein Condensates
- Markov Chains and Monte Carlo Methods
- Neural Networks and Reservoir Computing
Old Dominion University
2023-2025
Stony Brook University
2016-2025
Thomas Jefferson National Accelerator Facility
2021-2025
Dominion University College
2025
University of Bonn
2024
University of Tennessee at Knoxville
2024
George Washington University
2023
Lawrence Berkeley National Laboratory
2017-2022
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2022
University of California, Berkeley
2020-2021
We present simulations of non-equilibrium dynamics quantum field theories on digital computers. As a representative example, we consider the Schwinger model, 1+1 dimensional U(1) gauge theory, coupled through Yukawa-type interaction to thermal environment described by scalar theory. use Hamiltonian formulation model discretized spatial lattice. With fields traced out, can be treated as an open system and its real-time are governed Lindblad equation in Markovian limit. The with ultimately...
We propose the lepton-jet correlation in deep inelastic scattering as a unique tool for tomography of nucleons and nuclei at electron-ion collider (EIC). The azimuthal angular between final state lepton jet depends on transverse momentum dependent quark distributions. take example single spin asymmetries to show sensitivity Sivers function. When is studied lepton-nucleus collisions, broadening effects can be used explore cold nuclear matter effects. These features make correlations an...
We introduce a new kind of jet function: the semi-inclusive function $J_i(z, \omega_J, \mu)$, which describes how parton $i$ is transformed into with radius $R$ and energy fraction $z = \omega_J/\omega$, $\omega_J$ $\omega$ being large light-cone momentum component corresponding that initiates jet, respectively. Within framework Soft Collinear Effective Theory (SCET) we calculate both $J_q(z, \mu)$ $J_g(z, to next-to-leading order (NLO) for cone anti-k$_{\rm T}$ algorithms. demonstrate...
A bstract We study the transverse momentum distribution of hadrons within jets, where is defined with respect to standard jet axis. consider case substructure measurement performed for an inclusive sample pp → + X. demonstrate that this observable provides new opportunities dependent fragmentation functions (TMDFFs) which are currently poorly constrained from data, especially gluons. The factorization cross section obtained Soft Collinear Effective Theory (SCET), and we show relevant TMDFFs...
We develop a new formalism to describe the inclusive production of small radius jets in heavy-ion collisions, which is consistent with jet calculations simpler proton-proton system. Only at next-to-leading order (NLO) and beyond, parameter $R$ algorithm dependence cross section can be studied meaningful comparison experimental measurements possible. are able consistently achieve NLO accuracy by making use recently developed semi-inclusive functions within Soft Collinear Effective Theory...
We investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton-proton collisions. Recently, quark transversity distributions and fragmentation functions have been extracted within global analyses from data processes semi-inclusive deep inelastic scattering electron-positron annihilation. calculate for charged pions using these extractions RHIC kinematics at center-of-mass energies 200 500 GeV. compare our results with recent STAR Collaboration...
Jet angularities are a class of jet substructure observables where continuous parameter is introduced in order to interpolate between different classic such as the mass and broadening. We consider measured on an inclusive sample at LHC soft drop grooming procedure applied remove contaminations from jets. The algorithm allows for precise comparison theory data could be used extract QCD strong coupling constant $\alpha_s$ future. develop framework realize resummation all relevant large...
We present a framework to simulate the dynamics of hard probes such as heavy quarks or jets in hot, strongly coupled quark-gluon plasma (QGP) on quantum computer. Hard QGP can be treated open systems governed Markovian limit by Lindblad equation. However, due large computational costs, most current phenomenological calculations evolving use semiclassical approximations evolution. Quantum computation mitigate these costs and offers potential for fully treatment with exponential speed-up over...
Electron Ion Collider (EIC) is a particle accelerator facility planned for construction at Brookhaven National Laboratory on Long Island, New York by the United States Department of Energy. EIC will provide capabilities colliding beams polarized electrons with proton and light ions. be one largest most sophisticated new facilities worldwide, only large-scale in next few decades. The versatility, resolving power intensity present many opportunities to address some crucial fundamental open...
A bstract We explore machine learning-based jet and event identification at the future Electron-Ion Collider (EIC). study effectiveness of classifiers relatively low EIC energies, focusing on (i) identifying flavor (ii) underlying hard process event. propose applications our in key research areas current Relativistic Heavy Ion program, including enhancing constraints (transverse momentum dependent) parton distribution functions, improving experimental access to transverse spin asymmetries,...
We determine dominant next-to-next-to-leading order QCD corrections to single-inclusive jet production at the LHC and Tevatron, using established threshold resummation framework. In contrast previous literature on this topic, our study incorporates all of following features: (1) It properly accounts for way a is defined in experiment treated available full next-to-leading calculations, (2) it includes three leading classes logarithmic terms perturbative expansion, (3) adapted kinematics...
We present a framework that describes the energy distribution of subjets radius r within jet R. consider both an inclusive sample as well centered around predetermined axis, from which shape can be obtained. For ≪ R we factorize physics at angular scales and to resum logarithms r/R. central subjets, standard axis winner-take-all involve double single r/R, respectively. All relevant one-loop matching coefficients are given, inconsistency in some previous results for cone jets is resolved. Our...
We present a first analysis of parton-to-pion fragmentation functions at next-to-next-to-leading order accuracy in QCD based on single-inclusive pion production electron-positron annihilation. Special emphasis is put the technical details necessary to perform scale evolution and cross section calculation Mellin moment space. demonstrate how description data theoretical uncertainties are improved when corrections included.
We develop a version of Soft Collinear Effective Theory (SCET) which includes finite quark masses, as well Glauber gluons that describe the interaction collinear partons with QCD matter. In framework this new effective field theory, labeled SCETM,G, we derive massive splitting functions in vacuum and medium for processes Q → Qg, gQ $$ g\to Q\overline{Q} . The numerical effects due to masses are sizable our results consistent traditional approach parton energy loss soft gluon emission limit....
The jet fragmentation function describes the longitudinal momentum distribution of hadrons inside a reconstructed jet. We study in proton-proton collisions framework soft-collinear effective theory (SCET). find that, up to power corrections, can be expressed as ratio fragmenting and unmeasured function. Using renormalization group techniques, we are able resum large logarithms radii R perturbative expansion cross section. use our theoretical formalism describe functions for light hadron...
We present a novel global QCD analysis of charged ${D}^{*}$-meson fragmentation functions at next-to-leading order accuracy. This is achieved by making use the available data for single-inclusive production in electron-positron annihilation, hadron-hadron collisions, and, first time, in-jet proton-proton scattering. It shown how to include all relevant processes efficiently and without approximations within Mellin moment technique, specifically cross section. The presented technical...
A bstract We present results for the soft drop groomed jet radius R g at next-to-leading logarithmic accuracy. The of a which corresponds to angle between two branches passing criterion is one characteristic observables relevant precise understanding substructure. establish factorization formalism that allows resummation all large logarithms, based on demonstrating order equivalence veto in region boundaries and ungroomed jet. Non-global logarithms including clustering effects due...
We present predictions and projections for hadron-in-jet measurements electron-jet azimuthal correlations at the future Electron-Ion Collider (EIC). These observables directly probe three-dimensional (3D) structure of hadrons, in particular, quark transversity Sivers parton distributions Collins fragmentation functions. explore feasibility these experimental by detector simulations discuss requirements. conclude that jet have potential to enhance 3D imaging EIC program.
We propose a new method to evaluate jet substructure observables in inclusive measurements, based upon semi-inclusive functions the framework of Soft Collinear Effective Theory (SCET). As first example, we consider fragmentation function, where hadron h is identified inside fully reconstructed jet. introduce fragmenting function $$ {\mathcal{G}}_i^h\left(z={\omega}_J/\omega, {z}_h={\omega}_h/{\omega}_J,{\omega}_J,R,\mu \right) , which depends on radius R and large light-cone momenta parton...
We discuss the prospects of using jets as precision probes in electron-nucleus collisions at future Electron-Ion Collider. Jets produced deep-inelastic scattering can be calibrated by a measurement scattered electron. Such electron-jet "tag and probe" measurements call for an approach that is orthogonal to most HERA jet well previous studies EIC. present observables such momentum balance, azimuthal correlations substructure, which provide constraints on parton transport coefficient nuclei....
A bstract Machine learning-based jet classifiers are able to achieve impressive tagging performance in a variety of applications high-energy and nuclear physics. However, it remains unclear many cases which aspects jets give rise this discriminating power, whether observables that tractable perturbative QCD such as those obeying infrared-collinear (IRC) safety serve sufficient inputs. In article, we introduce new classifier, Jet Flow Networks (JFNs), an effort address the question IRC unsafe...
We present the first threshold and jet radius jointly resummed cross section for single-inclusive hadronic production. work at next-to-leading logarithmic accuracy our framework allows a systematic extension beyond currently achieved precision. Long-standing numerical issues are overcome by performing resummation directly in momentum space within soft collinear effective theory. results LHC observe an improved description of available data. Our immediate relevance precision phenomenology...
A bstract We study jet mass distributions measured in the single inclusive production proton-proton collisions pp → jet+ X at LHC. consider both standard ungroomed jets as well soft drop groomed jets. Within Soft Collinear Effective Theory (SCET), we establish QCD factorization theorems for cases and their relation. The developed framework allows joint resummation of several classes logarithmic corrections to all orders strong coupling constant. For case, resum logarithms radius parameter...
We propose a new phenomenological approach to establish QCD factorization of jet cross sections in the heavy-ion environment. Starting from formalism proton-proton collisions, we introduce medium modified functions capture leading interaction jets with hot and dense medium. A global analysis using Monte Carlo sampling is performed order reliably determine nuclear modification factor inclusive at LHC. find that gluon are significantly more suppressed due presence than quark jets. In addition,...