A5036854824- 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
- Computational Physics and Python Applications
- Neutrino Physics Research
- Distributed and Parallel Computing Systems
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Advanced Data Storage Technologies
- Scientific Computing and Data Management
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- International Science and Diplomacy
- Big Data Technologies and Applications
- Gamma-ray bursts and supernovae
- Nuclear physics research studies
- Statistical Methods and Bayesian Inference
- Radiation Therapy and Dosimetry
- Statistical Mechanics and Entropy
- Optical properties and cooling technologies in crystalline materials
Kyungpook National University
2016-2025
Institute of High Energy Physics
2015-2024
A. Alikhanyan National Laboratory
2022-2024
University of Antwerp
2024
Chonnam National University
2023
European Organization for Nuclear Research
2011-2022
LIP - Laboratory of Instrumentation and Experimental Particle Physics
2021-2022
Atlas Copco (Germany)
2019-2022
Florida State University
2009-2020
University of California, Irvine
2020
We describe the outcome of a data challenge conducted as part Dark Machines Initiative and Les Houches 2019 workshop on Physics at TeV colliders. The challenged aims detecting signals new physics LHC using unsupervised machine learning algorithms. First, we propose how an anomaly score could be implemented to define model-independent signal regions in searches. large benchmark dataset, consisting >1 Billion simulated events corresponding $10~\rm{fb}^{-1}$ proton-proton collisions...
We present the activities of `New Physics' working group for `Physics at TeV Colliders' workshop (Les Houches, France, 5--23 June, 2017). Our report includes new physics studies connected with Higgs boson and its properties, direct search strategies, reinterpretation LHC results in building viable models computational tool developments.
A bstract We propose simple freeze-in models where the observed dark matter abundance is explained via decay of an electrically charged and/or coloured parent particle into Feebly Interacting Massive Particles (FIMP). The long-lived and yields a wide variety LHC signatures depending on its lifetime quantum numbers. assess current constraints future high luminosity reach these scenarios at from searches for heavy stable particles, disappearing tracks, displaced vertices leptons. show that...
The statistical models used to derive the results of experimental analyses are incredible scientific value and essential information for analysis preservation reuse. In this paper, we make case systematically publishing full discuss technical developments that practical. By means a variety physics cases -- including parton distribution functions, Higgs boson measurements, effective field theory interpretations, direct searches new physics, heavy flavor dark matter detection, world averages,...
We interpret within the phenomenological MSSM (pMSSM) results of SUSY searches published by CMS collaboration based on first ~1 fb^-1 data taken during 2011 LHC run at 7 TeV. The pMSSM is a 19-dimensional parametrization that captures most its features. It encompasses, and goes beyond, broad range more constrained models. Performing global Bayesian analysis, we obtain posterior probability densities parameters, masses derived observables. In contrast to constraints for particular breaking...
We present the activities of "New Physics" working group for "Physics at TeV Colliders" workshop (Les Houches, France, 3--21 June, 2013). Our report includes new computational tool developments, studies implications Higgs boson discovery on physics, important signatures searches natural physics LHC, flavour aspects and assessments interplay between direct dark matter LHC.
We present latest developments in Analysis Description Language (ADL), a declarative domain-specific language describing the physics algorithm of HEP data analysis decoupled from software frameworks. Analyses written ADL can be integrated into any framework for various tasks. is multipurpose construct with uses ranging design to preservation, reinterpretation, queries, visualisation, combination, etc. The most advanced infrastructure execute on events CutLang runtime interpreter. Recent...
Supersymmetric models with t-b-\tau Yukawa unification at M_{GUT} qualitatively predict a sparticle mass spectrum including first and second generation scalars the 3--15 TeV scale, third (few) scale gluinos in sub-TeV range. The neutralino relic density these typically turns out to lie far above measured dark matter abundance, prompting suggestion that instead is composed of an axion/axino mixture. We explore axion thermal non-thermal axino abundance Yukawa-unified SUSY models. find this...
We first build a minimal model of vectorlike quarks where the dominant Higgs boson production process at LHC---the gluon fusion---can be significantly suppressed, being motivated by recent stringent constraints from search for direct over wide mass range. Within this model, compatible with present experimental on searches, we demonstrate that ($h$) via heavy top-partner (${t}_{2}$) decay, $pp\ensuremath{\rightarrow}{t}_{2}{\overline{t}}_{2}$, ${t}_{2}\ensuremath{\rightarrow}th$, allows to...
We present a set of recommendations for the presentation LHC results on searches new physics, which are aimed at providing more efficient flow scientific information between experimental collaborations and rest high energy physics community, facilitating interpretation in wide class models. Implementing these would aid full exploitation potential LHC.
With the increasing usage of machine-learning in high-energy physics analyses, publication trained models a reusable form has become crucial question for analysis preservation and reuse. The complexity these creates practical issues both reporting them accurately ensuring stability their behaviours different environments over extended timescales. In this note we discuss current state affairs, highlighting specific focusing on most promising technical strategic approaches to ensure...
A successful implementation of thermal leptogenesis requires the re-heat temperature after inflation TR to exceed ∼ 2 × 109 GeV. Such a high value typically leads an overproduction gravitinos in early universe, which will cause conflicts, mainly with BBN constraints. Asaka and Yanagida (AY) have proposed that these two issues can be reconciled context Peccei-Quinn augmented MSSM (PQMSSM) if one adopts mass hierarchy m(sparticle) > m(gravitino)>m(axino), m(axino) keV. In this case, sparticle...
We make the case for systematic, reliable preservation of event-wise data, derived data products, and executable analysis code. This enables analyses' long-term future reuse, in order to maximise scientific impact publicly funded particle-physics experiments. cover needs both experimental theoretical particle physics communities, outline goals benefits that are uniquely enabled by recasting reinterpretation. also discuss technical challenges infrastructure needs, as well sociological...
We examine the prospects for testing SO(10) Yukawa-unified supersymmetric models during first year of LHC running at $ \sqrt s = 7\,{\text{TeV}} , assuming integrated luminosity values ∼0.1-1 fb−1. consider two cases: Higgs splitting (HS) and D-term (DR3) models. Each generically predicts light gluinos heavy squarks, with an inverted scalar mass hierarchy. hence expect large rates gluino pair production followed by decays to final states b-jet multiplicity. For 0.2 fb−1 luminosity, we find a...
We put forth conclusions and suggestions regarding the presentation of LHC Higgs results that may help to maximize their impact utility whole High Energy Physics community.
We present an extensive study of non-minimal flavour violation in the squark sector framework Minimal Supersymmetric Standard Model. investigate effects multiple non-vanishing flavour-violating elements mass matrices by means a Markov Chain Monte Carlo scanning technique and identify parameter combinations that are favoured both current data theoretical constraints. then detail resulting distributions flavour-conserving model parameters. Based on this analysis, we propose set benchmark...
This collection of studies on new physics at the LHC constitutes report supersymmetry working group Workshop `Physics TeV Colliders', Les Houches, France, 2007. They cover wide spectrum phenomenology in era, from alternative models and signatures to extraction relevant observables, study MSSM parameter space finally interplay observations with additional data expected a similar time scale. The special feature this is that while not each explicitely performed together by theoretical...
We investigate the phenomenology of Effective Supersymmetry (ESUSY) models wherein electroweak gauginos and third generation scalars have masses up to about 1~TeV while first second lie in multi-TeV range. Such ameliorate SUSY flavor CP problems via a decoupling solution, at same time maintaining naturalness. In our analysis, we assume independent GUT scale mass parameters for first/second Higgs scalars, addition m_{1/2}, \tan\beta A_0, require radiative symmetry breaking as usual. analyse...