A5036887669- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Computational Physics and Python Applications
- Superconducting Materials and Applications
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Black Holes and Theoretical Physics
- Nuclear reactor physics and engineering
- Stochastic processes and statistical mechanics
- Distributed and Parallel Computing Systems
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Scientific Computing and Data Management
- Cosmology and Gravitation Theories
- X-ray Spectroscopy and Fluorescence Analysis
- Markov Chains and Monte Carlo Methods
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Detection and Scintillator Technologies
- Algorithms and Data Compression
- Advanced Data Storage Technologies
- Particle accelerators and beam dynamics
University of Illinois Urbana-Champaign
2011-2024
Duke University
2018-2024
Thomas Jefferson National Accelerator Facility
2020-2024
Augustana University
2023
PHENIX laboratory
2020-2023
Banaras Hindu University
2020-2023
Abilene Christian University
2023
University of Bonn
2016-2022
University of the Basque Country
2016-2022
Chonnam National University
2019-2022
Time and again, spin has been a key element in the exploration of fundamental physics. Spin-dependent observables have often revealed deficits assumed theoretical framework led to novel developments concepts. Spin is exploited many parity-violating experiments searching for physics beyond Standard Model or studying nature nucleon-nucleon forces. The RHIC program plays special role this grand scheme: it uses study how complex many-body system such as proton arises from dynamics QCD. Many...
The interference fragmentation function translates the of a quark with transverse projection spin into an azimuthal asymmetry two final-state hadrons. In e+e- annihilation product functions is measured. We report nonzero asymmetries for pairs charge-ordered pi+pi- pairs, which indicate significant in this channel. results are obtained from 672 fb-1 data sample that contains 711 \times 106 and was collected at near ?(4S) resonance, Belle detector KEKB asymmetric-energy collider.
Measurements of inclusive differential cross sections for charged pion and kaon production in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation have been carried out at a center-of-mass energy $\sqrt{s}=10.52\text{ }\text{ }\mathrm{GeV}$. The measurements were performed with the Belle detector KEKB collider using data sample containing $113\ifmmode\times\else\texttimes\fi{}{10}^{6}$ ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}q\overline{q}$ events, where $q={u,d,s,c}$. We present...
The exploration of the fundamental structure strongly interacting matter has always thrived on complementarity lepton scattering and purely hadronic probes. As community eagerly anticipates a future electron ion collider (EIC) in U.S., an outstanding scientific opportunity remains to complete "must-do" measurements p+p p+A physics years preceding EIC. we describe this document, these will be essential fully realize promise EIC by provid-ing comprehensive set collisions that, when combined...
We report the first observation of spontaneous polarization $\mathrm{\ensuremath{\Lambda}}$ and $\overline{\mathrm{\ensuremath{\Lambda}}}$ hyperons transverse to production plane in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation, which is attributed effect arising from a polarizing fragmentation function. For inclusive $\mathrm{\ensuremath{\Lambda}}/\overline{\mathrm{\ensuremath{\Lambda}}}$ production, we also results with subtracted feed-down contributions ${\mathrm{\ensuremath{\Sigma}}}^{0}$...
Belle II is an experiment operating at the intensity frontier. Over next decades, it will record decay of billions bottom mesons, charm hadrons, and tau leptons produced in 10 GeV electron-positron collisions SuperKEKB high-luminosity collider KEK. These data, collected low-background kinematically known conditions, allow us to measure hundreds parameters that test standard model (SM) probe for existence new particles, mass scales orders magnitudes higher than those studied energy We project...
ePIC will be a general-purpose detector designed to enalbe the entire physics program of Electron-Ion Collider (EIC) at BNL, USA. Several key measurements depend on efficient Particle Identification (PID). The PID system covers wide pseudorapidity (−3.3 < 𝜂 3.5) and momentum range. technologies have been identified serve such purpose. In forward region (1.5 Dual Ring Imaging Cerenkov (dRICH) employed provide continuous hadron from 3 GeV/c 50 support electromagnetic calorimeter by pion...
We provide a comprehensive overview of transversely polarized $\Lambda$ production at the future Electron-Ion Collider (EIC). In particular, we study both spontaneous transverse polarization as well spin transfer within Transverse Momentum Dependent (TMD) factorization region. To describe polarization, consider contribution from TMD Polarizing Fragmentation Function (TMD PFF). Similarly, originating transversity FF). projections for statistical uncertainties in corresponding observables EIC....
The observation of beam spin asymmetries in two-pion production semi-inclusive deep inelastic scattering off an unpolarized proton target is reported. data presented here were taken the fall 2018 with CLAS12 spectrometer using a 10.6 GeV longitudinally spin-polarized electron delivered by CEBAF at JLab. measured provide first opportunity to extract parton distribution function $e(x)$, which provides information about interaction between gluons and quarks, collinear framework that offers...
The Electron-Ion Collider (EIC), a state-of-the-art facility for studying the strong force, is expected to begin commissioning its first experiments in 2028. This an opportune time artificial intelligence (AI) be included from start at this and all phases that lead up experiments. second annual workshop organized by AI4EIC working group, which recently took place, centered on exploring current prospective application areas of AI EIC. not only beneficial EIC, but also provides valuable...
This volume is a collection of contributions for the 7-week program "Probing Nucleons and Nuclei in High Energy Collisions" that was held at Institute Nuclear Theory Seattle, WA, USA, from October 1 until November 16, 2018. The dedicated to physics Electron Ion Collider (EIC), world's first polarized electron-nucleon (ep) electron-nucleus (eA) collider be constructed USA. These proceedings are organized by chapters, corresponding weeks program: Week I, Generalized parton distributions; II,...
This work reports the first observation of azimuthal asymmetries around thrust axis in $e^+e^-$ annihilation pairs back-to-back charged pions one hemisphere, and $\pi^0$ $\eta$ mesons opposite hemisphere. These results are complemented by a new analysis pions. The rise with relative momentum $z$ detected hadrons as well transverse respect to axis. sensitive Collins fragmentation function $H_1^{\perp}$ provide complementary information previous measurements kaons final state. In particular,...
Abstract Artificial Intelligence is poised to transform the design of complex, large-scale detectors like ePIC at future Electron Ion Collider. Featuring a central detector with additional detecting systems in far forward and backward regions, experiment incorporates numerous parameters objectives, including performance, physics reach, cost, constrained by mechanical geometric limits. This project aims develop scalable, distributed AI-assisted for EIC (AID(2)E), employing state-of-the-art...
The present study presents a novel application for normalizing flows domain adaptation. investigates the ability of flow based neural networks to improve signal extraction $\Lambda$ Hyperons at CLAS12. Normalizing Flows can help model complex probability density functions that describe physics processes, enabling uses such as event generation. Λ has been improved through use classifier networks, but differences in simulation and data domains limit performance; this utilizes adaptation...
This document collects the proceedings of "Parton Radiation and Fragmentation from LHC to FCC-ee" workshop (http://indico.cern.ch/e/ee\_jets16) held at CERN in Nov. 2016. The writeup reviews latest theoretical experimental developments on parton radiation parton-hadron fragmentation studies --including analyses LEP, B-factories, data-- with a focus future perspectives reacheable $e^+e^-$ measurements Future Circular Collider (FCC-ee), multi-ab$^{-1}$ integrated luminosities yielding...
We report measurements of the ratios branching fractions for $B\ensuremath{\rightarrow}{\overline{D}}^{(*)}\ensuremath{\pi}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ and $B\ensuremath{\rightarrow}{\overline{D}}^{(*)}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ relative to $B\ensuremath{\rightarrow}{\overline{D}}^{*}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ decays with...
Machine learning methods and in particular Graph Neural Networks (GNNs) have revolutionized many tasks within the high energy physics community. We report on novel use of GNNs a domain-adversarial training method to identify $\Lambda$ hyperon events with CLAS12 experiment at Jefferson Lab. The GNN we developed increases purity yield by factor $1.95$ $1.82$ using training. This work also provides good benchmark for developing event tagging machine other channels experiments, such as planned...
This lecture will introduce the Support Vector algorithms for classification and regression. They are an application of so called kernel trick, which allows extension a certain class linear to non case. The trick be introduced in context structural risk minimization, large margin regression presented. Current applications high energy physics discussed.
We report a measurement of the branching fraction decay $B \rightarrow D^{(*)}\pi \ell\nu$. The analysis uses 772$\times 10^6$ $B\bar{B}$ pairs produced in $e^+e^-\rightarrow \Upsilon(4S)$ data recorded by Belle experiment at KEKB asymmetric-energy $e^+e^-$ collider. tagging $B$ meson is fully reconstructed hadronic mode. On signal side, we reconstruct \ell\nu$ $(\ell=e,\mu)$. measured fractions are $\mathcal{B}(B^+ D^-\pi^+ \ell^+\nu)$ = [4.55 $\pm$ 0.27 (stat.) 0.39 (syst.)]$\times...