Author
Hyun-Chul Kim
Other affiliations: Konkuk University, University of Edinburgh, Osaka University ...read more
Bio: Hyun-Chul Kim is an academic researcher from Inha University. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 176, co-authored 4076 publications receiving 183227 citations. Previous affiliations of Hyun-Chul Kim include Konkuk University & University of Edinburgh.
Topics: Large Hadron Collider, Lepton, Higgs boson, Top quark, Quark
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors report on the most recent measurements of the top quark mass, performed by the CDF and D0 collaborations at the Fermilab Tevatron.
Abstract: The first evidence and subsequent discovery of the top quark was reported nearly 4 years ago. Since then, CDF and D0 have analyzed their full Run 1 data samples, and analysis techniques have been refined to make optimal use of the information. In this paper, we report on the most recent measurements of the top quark mass, performed by the CDF and D0 collaborations at the Fermilab Tevatron. The CDF collaboration has performed measurements of the top quark mass in three decay channels from which the top quark mass is measured to be 175.5 {+-} 6.9 GeV=c{sup 2}. The D0 collaboration combines measurements from two decay channels to obtain a top quark mass of 172.1 {+-} 7.1 GeV/c{sup 2}. Combining the measurements from the two experiments, assuming a 2 GeV GeV/c{sup 2} correlated systematic uncertainty, the measurement of the top quark mass at the Tevatron is 173.9 {+-} 5.2 GeV/c{sup 2}. This report presents the measurements of the top quark mass from each of the decay channels which contribute to this measurement.
68 citations
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Vardan Khachatryan1, Albert M. Sirunyan1, Armen Tumasyan1, Wolfgang Adam +2358 more•Institutions (190)
TL;DR: In this paper, the authors acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: Austria, Belgium, the Netherlands, and the United States National Science Foundation.
Abstract: Finally, we acknowledge the enduring support for the construction and operation
of the LHC and the CMS detector provided by the following funding agencies: the Austrian
Federal Ministry of Science, Research and Economy and the Austrian Science Fund; the
Belgian Fonds de la Recherche Scienti que, and Fonds voor Wetenschappelijk Onderzoek;
the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian
Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of
Science and Technology, and National Natural Science Foundation of China; the Colombian
Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport,
and the Croatian Science Foundation; the Research Promotion Foundation, Cyprus; the
Ministry of Education and Research, Estonian Research Council via IUT23-4 and IUT23-
6 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish
Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National
de Physique Nucl eaire et de Physique des Particules / CNRS, and Commissariat a l' Energie
Atomique et aux Energies Alternatives / CEA, France; the Bundesministerium f ur Bildung
und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher
Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece;
the National Scienti c Research Foundation, and National Innovation O ce, Hungary; the
Department of Atomic Energy and the Department of Science and Technology, India; the
Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation,
Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Ministry of Science, ICT
and Future Planning, and National Research Foundation (NRF), Republic of Korea; the
Lithuanian Academy of Sciences; the Ministry of Education, and University of Malaya
(Malaysia); the Mexican Funding Agencies (BUAP, CINVESTAV, CONACYT, LNS, SEP,
and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand;
the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education
and the National Science Centre, Poland; the Funda c~ao para a Ci^encia e a Tecnologia,
Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation,
the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of
Sciences, and the Russian Foundation for Basic Research; the Ministry of Education, Science
and Technological Development of Serbia; the Secretar a de Estado de Investigaci on,
Desarrollo e Innovaci on and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding
Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the
Ministry of Science and Technology, Taipei; the Thailand Center of Excellence in Physics,
the Institute for the Promotion of Teaching Science and Technology of Thailand, Special
Task Force for Activating Research and the National Science and Technology Development
Agency of Thailand; the Scienti c and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the National Academy of Sciences of Ukraine, and State Fund
for Fundamental Researches, Ukraine; the Science and Technology Facilities Council, UK;
the US Department of Energy, and the US National Science Foundation.
68 citations
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TL;DR: In this article, the top quark mass was measured in the channels t (t) over bar-to-lepton+jets and t (T) over lepton-b-jets (lepton = e, mu) based on ATLAS data recorded in 2011 at the LHC with a proton-proton center-of-mass energy of root s = 7 TeV and correspond to an integrated luminosity of 4.6 fb(-1).
Abstract: The top quark mass was measured in the channels t (t) over bar -> lepton+jets and t (t) over bar -> dilepton (lepton = e, mu) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton-proton centre-of-mass energy of root s = 7 TeV and correspond to an integrated luminosity of 4.6 fb(-1). The t (t) over bar -> lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u,d,c, s-quarks or gluons, respectively. The analysis of the t (t) over bar -> dilepton channel exploits a one-dimensional template method using the m(lb) observable, defined as the average invariant mass of the two lepton+b-jet pairs in each event. The top quark mass is measured to be 172.33 +/- 0.75(stat + JSF + bJSF) +/- 1.02(syst) GeV, and 173.79 +/- 0.54(stat) +/- 1.30(syst) GeV in the t (t) over bar -> lepton+jets and t (t) over bar -> dilepton channels, respectively. The combination of the two results yields m(top) = 172.99 +/- 0.48(stat) +/- 0.78(syst) GeV, with a total uncertainty of 0.91 GeV.
68 citations
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S. Chatrchyan1, Robin Erbacher2, C. A. Carrillo Montoya, Wagner Carvalho3 +2199 more•Institutions (140)
TL;DR: In this article, a measurement of the tt production cross section in pp collisions at √s = 7 TeV is presented, based on data corresponding to an integrated luminosity of 2.3 fb^(−1) collected by the CMS detector at the LHC.
68 citations
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TL;DR: In this article, a search for non-standard-model Higgs boson decays to pairs of new light bosons, each of which decays into the μ+μ− final state.
68 citations
Cited by
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
01 May 1993
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
Abstract: Three parallel algorithms for classical molecular dynamics are presented. The first assigns each processor a fixed subset of atoms; the second assigns each a fixed subset of inter-atomic forces to compute; the third assigns each a fixed spatial region. The algorithms are suitable for molecular dynamics models which can be difficult to parallelize efficiently—those with short-range forces where the neighbors of each atom change rapidly. They can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors. The algorithms are tested on a standard Lennard-Jones benchmark problem for system sizes ranging from 500 to 100,000,000 atoms on several parallel supercomputers--the nCUBE 2, Intel iPSC/860 and Paragon, and Cray T3D. Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems. For large problems, the spatial algorithm achieves parallel efficiencies of 90% and a 1840-node Intel Paragon performs up to 165 faster than a single Cray C9O processor. Trade-offs between the three algorithms and guidelines for adapting them to more complex molecular dynamics simulations are also discussed.
29,323 citations
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28,685 citations
28 Jul 2005
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1(PfPMP1)与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员,通过启动转录不同的var基因变异体为抗原变异提供了分子基础。
18,940 citations