H. Seo

ORCID: 0000-0002-1496-624X
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About
Contact & Profiles
Research Areas
  • 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
  • Neutrino Physics Research
  • Astrophysics and Cosmic Phenomena
  • Cosmology and Gravitation Theories
  • Computational Physics and Python Applications
  • Black Holes and Theoretical Physics
  • Gamma-ray bursts and supernovae
  • Radio Astronomy Observations and Technology
  • Radiation Detection and Scintillator Technologies
  • Particle accelerators and beam dynamics
  • Atomic and Subatomic Physics Research
  • Ionosphere and magnetosphere dynamics
  • Solar and Space Plasma Dynamics
  • Nuclear reactor physics and engineering
  • Noncommutative and Quantum Gravity Theories
  • Atomic and Molecular Physics
  • Medical Imaging Techniques and Applications
  • Muon and positron interactions and applications
  • Radiation Therapy and Dosimetry
  • Particle Accelerators and Free-Electron Lasers
  • Thin-Film Transistor Technologies

Syneos Health (South Korea)
2025

Seoul National University
2015-2024

A. Alikhanyan National Laboratory
2014-2024

University of Antwerp
2024

Institute of High Energy Physics
2012-2024

Karlsruhe Institute of Technology
2019-2024

Institute for Basic Science
2019-2024

Fermi National Accelerator Laboratory
2023-2024

University of Seoul
2023

Sungkyunkwan University
2010-2022

The RENO experiment has analyzed about 500 live days of data to observe an energy dependent disappearance reactor ν¯e by comparing their prompt signal spectra measured in two identical near and far detectors. In the period between August 2011 January 2013, (near) detector observed 31 541 (290 775) electron antineutrino candidate events with a background fraction 4.9% (2.8%). show excess around 5 MeV relative prediction from most commonly used model. A clear baseline is deficit number ν¯e....

10.1103/physrevlett.116.211801 article EN Physical Review Letters 2016-05-24

The RENO experiment reports more precisely measured values of $\theta_{13}$ and $|\Delta m_{ee}^2|$ using $\sim$2\,200 live days data. amplitude frequency reactor electron antineutrino ($\overline{\nu}_e$) oscillation are by comparing the prompt signal spectra obtained from two identical near far detectors. In period between August 2011 February 2018, (near) detector observed 103\,212 (850\,666) candidate events with a background fraction 4.7\% (2.0\%). A clear energy baseline dependent...

10.1103/physrevlett.121.201801 article EN cc-by Physical Review Letters 2018-11-15

We describe the open-source global fitting package GAMBIT: Global And Modular Beyond-the-Standard-Model Inference Tool. GAMBIT combines extensive calculations of observables and likelihoods in particle astroparticle physics with a hierarchical model database, advanced tools for automatically building analyses essentially any model, flexible powerful system interfacing to external codes, suite different statistical methods parameter scanning algorithms, host other utilities designed make...

10.1140/epjc/s10052-017-5321-8 article EN cc-by The European Physical Journal C 2017-11-01

Abstract New developments in liquid scintillators, high-efficiency, fast photon detectors, and chromatic sorting have opened up the possibility for building a large-scale detector that can discriminate between Cherenkov scintillation signals. Such could reconstruct particle direction species using light while also having excellent energy resolution low threshold of scintillator detector. Situated deep underground, utilizing new techniques computing reconstruction, this achieve unprecedented...

10.1140/epjc/s10052-020-7977-8 article EN cc-by The European Physical Journal C 2020-05-01

The Reactor Experiment for Neutrino Oscillation (RENO) has been taking electron antineutrino ($\overline{\nu}_{e}$) data from the reactors in Yonggwang, Korea, using two identical detectors since August 2011. Using roughly 500 live days of through January 2013 we observe 290,775 (31,514) reactor $\overline{\nu}_{e}$ candidate events with 2.8 (4.9)% background near (far) detector. observed visible positron spectra both show discrepancy around 5 MeV regard to prediction current model. Based on...

10.1103/physrevd.98.012002 article EN cc-by Physical review. D/Physical review. D. 2018-07-03

The concentration of thyrotropin-releasing hormone (TRH, thyroliberin) in rat islets Langerhans is 30-fold higher than whole pancreas, indicating that the are main source pancreatic TRH. TRH extracted from indistinguishable synthetic its immunological and biological properties inactivation by human serum. physiologic function islet unknown. However, because antagonistic to somatostatin other systems, also concentrated high concentrations, it possible may serve a similar regulation cell...

10.1073/pnas.75.9.4265 article EN Proceedings of the National Academy of Sciences 1978-09-01

Recent observations have shown the presence of thyrotropin-releasing hormone-like material (TRH-LM) in rat pancreatic islets and retina. Its immunological biological properties are identical to those synthetic hormone (thyroliberin). This communication deals with ontogenesis TRH-LM pancreas retina as compared that hypothalamus. Effects sex exposure constant dark were also studied. Results show asynchronous changes concentration occur during postnatal maturation these tissues, presumably...

10.1073/pnas.77.7.4345 article EN Proceedings of the National Academy of Sciences 1980-07-01

We report a fuel-dependent reactor electron antineutrino (ν¯e) yield using six 2.8 GWth reactors in the Hanbit nuclear power plant complex, Yonggwang, Korea. The analysis uses 850 666 ν¯e candidate events with background fraction of 2.0% acquired through inverse beta decay (IBD) interactions near detector for 1807.9 live days from August 2011 to February 2018. Based on multiple fuel cycles, we observe U235 dependent variation measured IBD yields slope (1.51±0.23)×10−43 cm2/fission and...

10.1103/physrevlett.122.232501 article EN cc-by Physical Review Letters 2019-06-12

10.1088/1361-6471/ad307f article EN cc-by Journal of Physics G Nuclear and Particle Physics 2024-10-29

One of the main goals RENO (Reactor Experiment for Neutrino Oscillation) is to measure smallest neutrino mixing angle θ13 using reactor neutrinos in Korea. first experiment taking data with two identical detectors different locations (Near and Far), which critical reduce systematic uncertainty flux. Our has been almost continuous since Aug. 2011 we have collected about 434,000 (54,000) electron anti-neutrinos Near (Far) detector by 2013. Using this (about 800 live days) present a new result...

10.1063/1.4915563 article EN AIP conference proceedings 2015-01-01

IsoDAR seeks to place a high-power-cyclotron and target combination, as an intense source of ${\overline{\ensuremath{\nu}}}_{e}$ at the level $\ensuremath{\sim}{10}^{23}/\mathrm{year}$, close kiloton-scale neutrino detector in order gain sensitivity very short-baseline oscillations (${\overline{\ensuremath{\nu}}}_{e}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$) perform precision tests weak interaction, among other physics opportunities. Recently, has received preliminary...

10.1103/physrevd.105.052009 article EN cc-by Physical review. D/Physical review. D. 2022-03-28

Keyword spotting is often implemented by keyword classifier to the encoder in acoustic models, enabling classification of predefined or open vocabulary keywords. Although a crucial task various applications and can be extended call-for-help detection emergencies, however, previous method suffers from scalability limitations due retraining required introduce new keywords adapt changing contexts. We explore simple yet effective approach that leverages off-the-shelf pretrained ASR models...

10.48550/arxiv.2501.11631 preprint EN arXiv (Cornell University) 2025-01-20

10.1109/icassp49660.2025.10890654 article EN ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2025-03-12

We report evidence for the hc state of charmonium in its ηcγ decay mode and lack J/ψπ0 mode. studied these channels p¯p annihilations near center gravity PJ3 states, where was reported by E760, our previous experiment, at 3526.2±0.15±0.2 MeV, with ΓR≤1 MeV. observe an event excess 3526 Testing null hypothesis a linearly varying background cross section against alternate that includes resonance we reject P∼0.001. The mass is 3525.8±0.2±0.2 MeV width ≤1 estimate 10.0±3.5<Γp¯pBηcγ<12.0±4.5 eV,...

10.1103/physrevd.72.032001 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2005-08-04

In this document, the technical details of JSNS$^2$ (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment are described. The search for sterile neutrinos is currently one hottest topics in neutrino physics. aims to existence oscillations with $\Delta m^2$ near 1 eV$^2$ Materials and Life Science Experimental Facility (MLF). A MW beam 3 GeV protons incident on a spallation neutron target produces an intense from muon decay rest. Neutrinos come predominantly $\mu^+$...

10.48550/arxiv.1705.08629 preprint EN other-oa arXiv (Cornell University) 2017-01-01

With the spread of an aging society, mobility constrained seniors' need for public transportation is increasing. This paper investigates accessibility to welfare facilities elderly people, that is, whether people can easily access they frequently visit. We consider including residential institutions, medical and leisure commuting-system facilities. verify spatial distribution relationship unequal development urban or networks. Inequality was found between suburban areas study area....

10.1016/j.trip.2021.100514 article EN cc-by-nc-nd Transportation Research Interdisciplinary Perspectives 2021-12-01

The Reactor Experiment for Neutrino Oscillation (RENO) experiment has been taking data using two identical liquid scintillator detectors since August 2011. observed the disappearance of reactor neutrinos in their interactions with free protons, followed by neutron capture on hydrogen (n-H). Based 1500 live days taken 16.8 GWth reactors at Hanbit Nuclear Power Plant Korea, near (far) detector observes 567690 (90747) electron antineutrino candidate events n-H data. This provides an independent...

10.1007/jhep04(2020)029 article EN cc-by Journal of High Energy Physics 2020-04-01

In Ref. (GAMBIT Collaboration: Athron et. al., Eur. Phys. J. C. arXiv:1705.07908 , 2017) we introduced the global-fitting framework GAMBIT. this addendum, describe a new minor version increment of package. GAMBIT 1.1 includes full support for Mathematica backends, which in some detail here. As an example, backend SUSYHD (Vega and Villadoro, JHEP 07:159, 2015), calculates mass Higgs boson MSSM from effective field theory. We also updated likelihoods PrecisionBit DarkBit, decay data included DecayBit.

10.1140/epjc/s10052-017-5513-2 article EN cc-by The European Physical Journal C 2018-02-01

Abstract IsoDAR@Yemilab is a novel isotope-decay-at-rest experiment that has preliminary approval to run at the Yemi underground laboratory (Yemilab) in Jeongseon-gun, South Korea. Here, we describe detail considerations for installing this compact particle accelerator and neutrino target system Yemilab facility. Specifically, caverns being prepared IsoDAR, address installation, shielding, utilities requirements. To give context completeness, also briefly physics opportunities of IsoDAR...

10.1088/1748-0221/17/09/p09042 article EN Journal of Instrumentation 2022-09-01

The origin of the 1.356 eV emission band measured by photoluminescence (PL) is investigated correlating Hall measurement data for same materials. crystals grown horizontal-Bridgman technique were As or Ga rich controlling As-zone temperatures. Type conversion from n to p type with thermal activation energy ΔE=0.133 and ΔE=0.05 achieved heat treatment As-rich crystals. Ev +0.133 level may not be attributed defect because electrically active a nonradiative center radiative an inactive...

10.1063/1.343087 article EN Journal of Applied Physics 1989-01-15
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