Tutkimustuotoksia vuodessa
Tutkimustuotoksia vuodessa
Henkilökohtainen profiili
Ansioluettelo
Organization: Helsinki Institute of Physics, University of Helsinki, Helsinki, Finland
Email: [email protected]
Employment:
| 2021- Assistant Professor, Gangneung-Wonju National University (Visiting scalar, Helsinki Institute of Phyiscs)
l 2018-2021 Senior Researcher, Helsinki Institute of Physics, University of Helsinki
l 2013-2018 Research Professor, Kyungpook National University
l 2010-2013 Research Associate, Sungkyunkwan University (based full-time at CERN)
l 2010 (Oct) Research Associate, University of Toronto (based full-time at CERN)
l 2007-2010 Research Associate, Centre for Particle Physics, University of Alberta
(based at CERN from Sep 2009)
l 2005-2007 Post-doctoral Research Associate, University of Pittsburgh
Education:
l 2005 Ph.D., Physics, Kyungpook National University, Daegu, Korea
Thesis: Search for Gauge-Mediated SUSY Breaking in Diphoton Events in Collisions at Ös = 1.96 TeV
l 1999 M.Sc., Physics, Kyungpook National University, Daegu, Korea
Thesis: Measurement of Parity Violation with Polarized Electrons to Proton
l 1997 B.Sc., Physics, Kyungpook National University, Daegu, Korea
Honors:
l 2002-2003 Fellowship for the promising Ph.D. candidate, Korea Research Foundation
l 2001-2004 Research Fellow, the Center for High Energy Physics in Korea
l 1994-1996 University Scholarship, Kyungpook National University
Funding:
l 2016-2018 Basic Research Grant, National Research Foundation of Korea
Research Experiences with Collider-based Particle Physics:
CMS experiment
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l |
2018- |
Measurements of underlying event and top-quark mass. Multi-jet analysis for jet energy corrections and uncertainties.
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l |
2016-2018 |
Searches for new physics using vector boson fusion (VBF), bottom fermion fusion (BFF) and highly boosted Z bosons. Analysis framework. VBF HLT trigger development and efficiency measurement. Monte Carlo signal validation for BFF selection. Isolation study of the boosted objects.
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l |
2014-2015 |
Alternative determination and consistency checks for the top-quark mass. Feasibility study of analysis method for the modeling of background shape.
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l |
2012-2013 |
Gas leak searches, measurements and reparations of Resistive Plate Chambers (RPCs) in the CMS underground cavern. Estimation of the muon identification efficiency improvement by the muon endcap upgrades. Implementation of a new muon reconstruction algorithm using RPC and tracker. Measurement of muon reconstruction improvement by the RPCs.
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l |
2010-2011 |
Measurement of the production cross section using particle flow algorithm. Performance study of the combined conversion track reconstruct algorithm in search for Higgs to gg.
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ATLAS experiment
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l |
2009-2010 |
Identification of jet mis-reconstructed from individual noisy channels or problematic regions in the Liquid Argon Calorimeter, and sources of fake missing transverse energy, and cosmic-ray backgrounds. Investigation of the candidate events in the high multiplicity object signature search.
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l |
2007-2008 |
Development of a distributed trigger system using LHC computing grid. Evaluation of the system performance on event reconstruction using Linux farms and Grids in ATLAS Canada Tier-1 and Tier-2 centers.
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CDF experiment
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l |
2003-2004 |
Search for anomalous production of diphoton events with missing transverse energy. Improved limits on Gauge-Mediated supersymmetry breaking models. Best limits by combining the results of the CDF and DØ searches. Assembly, test and installation of Central Pre-Radiator (CPR) for Run IIb upgrade. Commissioning of CPR detector with cosmic rays.
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l |
2001-2002 |
Estimation of the total expected thickness of CDF detector materials for photon background subtraction. Measurement of the photon conversion probability for a conversion method of photon background subtraction. Alignment of CPR detector. Effect of Time-of-Flight detector on electromagnetic shower profile in photon identification. |
Research Experiences with Neutrino Physics:
MINOS experiment
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l |
2005-2007 |
Investigation of a method that effectively yields the shape of the neutrino flux as a function of energy (the so-called low-nu method) in measurement of neutrino and antineutrino total cross sections. PMT gain calibrations using an LED based light-injection system for near and far detectors. Prediction of the hadron-nucleus cross section to analyze experimental information for GENIE C++ Neutrinos MC Generator. |
MINERvA experiment
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l |
2006-2007 |
Integration test of the DAQ system for prototype readout electronics using a PC/VME controller. Basic input/output functionality, cross-talk and ADC pedestal shift measurements using the test stand that injects external charges into input channels. |
Detector R&D:
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l |
1999-2000 |
Detector R&D in a lab at a university - prototype fabrication and testing of Bakelite RPC chamber. CMS detector simulation tool installation and test.
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l |
1997-1998 |
HAPPEX experiment at Jefferson Lab. Geometry design and material considerations for electron counters to probe the strange structure of the nucleon via parity violating electron scattering. Study of a systematic effect by polarized electron beam. |
Services:
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l |
2019- |
CMS ARC member and Top PAG contact of Jet-MET
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l |
2015 |
Teacher in CMS Data Analysis School
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l |
2012-2013 |
Commissioning coordinator for the RPC detector in Long Shutdown 1
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l |
2011-2012 |
Volunteer guide to CERN Exchange Program for Korean Science Teachers
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l |
2009-2010 |
Data Quality Monitoring expert for the Jet/ETmiss group, conducting a Data Quality Assessment on processed data
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l |
2009 |
ATLAS event scanning team for the visual investigation of interesting candidates for multi-jets, W/Z, Top, SUSY and Exotics at LHC startup |
Teaching Experiences:
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l |
1997-1999 |
Undergraduate Teaching Assistant, Kyungpook National University General Physics Laboratory
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l |
2000 |
Undergraduate Teaching Assistant, Kyungpook National University Quantum Mechanics Course |
Tieteenalat
- 114 Fysiikka
Kansainvälinen ja kotimainen yhteistyö
Viimeisin maa-/aluetasolla toteutettu yhteistyö. Saat tarkempia lisätietoja pisteitä napauttamalla, tai
Julkaisut
- 303 Artikkeli
-
Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at √𝑠=13 TeV
The CMS collaboration, Hayrapetyan, A., Tumasyan, A., Adam, W., Forthomme, L., Kirschenmann, H., Österberg, K., Voutilainen, M., Bharthuar, S., Brücken, E., Garcia, F., Havukainen, J., Heikkilä, J., Kallonen, K., Kim, M., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S. & Lehti, S. & 12 muuta, , 6 kesäk. 2024, julkaisussa: Physical Review D. 109, 11, 37 Sivumäärä, 112001.Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu
Open accessTiedosto -
Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV
The CMS collaboration, Tumasyan, A., Adam, W., Eerola, P., Forthomme, L., Kirschenmann, H., Österberg, K., Voutilainen, M., Bharthuar, S., Brücken, E., Garcia, F., Havukainen, J., Heikkilä, J., Kim, M., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S., Lehti, S. & Lindén, T. & 13 muuta, , 15 helmik. 2024, julkaisussa: Journal of High Energy Physics. 2024, 2, 45 Sivumäärä, 106.Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu
Open accessTiedosto -
KS0 and Λ(Λ‾) two-particle femtoscopic correlations in PbPb collisions at √𝑠NN = 5.02TeV
The CMS collaboration, Tumasyan, A., Adam, W., Eerola, P., Forthomme, L., Kirschenmann, H., Österberg, K., Voutilainen, M., Bharthuar, S., Brücken, E., Garcia, F., Havukainen, J., Heikkilä, J., Kim, M., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S., Lehti, S. & Lindén, T. & 12 muuta, , lokak. 2024, julkaisussa: Physics Letters B. 857, 27 Sivumäärä, 138936.Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu
Open accessTiedosto -
Luminosity determination using Z boson production at the CMS experiment
The CMS collaboration, Hayrapetyan, A., Tumasyan, A., Adam, W., Forthomme, L., Kirschenmann, H., Österberg, K., Voutilainen, M., Bharthuar, S., Brücken, E., Garcia, F., Havukainen, J., Heikkilä, J., Kallonen, K., Kim, M., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S. & Lehti, S. & 13 muuta, , 10 tammik. 2024, julkaisussa: European Physical Journal C. Particles and Fields. 84, 1, 28 Sivumäärä, 26.Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu
Open accessTiedosto -
Measurement of diferential ZZ + jets production cross sections in pp collisions at √s = 13 TeV
The CMS collaboration, Hayrapetyan, A., Tumasyan, A., Adam, W., Forthomme, L., Kirschenmann, H., Österberg, K., Voutilainen, M., Bharthuar, S., Brücken, E., Garcia, F., Havukainen, J., Heikkilä, J., Kallonen, K., Kim, M., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S. & Lehti, S. & 12 muuta, , 29 lokak. 2024, julkaisussa: Journal of High Energy Physics. 2024, 10, 50 Sivumäärä, 209.Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu
Open accessTiedosto