Kyungpook National University
Department of Physics.
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교수
  • 이세욱교수
  • Professor Lee, Sehwook
연구분야
연구실
제1과학관 219호 ,053-950-7372
이메일
sehwook.lee@knu.ac.kr
홈페이지
http://majorana.knu.ac.kr​
  • 학력/경력
  • 연구소개
  • 최근 5년간 주요논문

학력

  • · 2011Ph.D. in High Energy Physics, Iowa State University
  • · 2003M.S. in High Energy Physics, Korea University
  • · 2000B.S. in Physics, Yeungnam University

주요경력

  • · 2011Assistant Professor, Kyungpook National University
  • · 2003Research Professor, Korea University
  • · 2000Postdoctoral Research Associate, Korea University

연구내용

Elementary Magnetic Monopole (KæM)

Dual-REAdout Method Calorimeter (DREAM)

SUSY,  Excited Leptons, and CP Violation in top-quark pair production (CMS, CERN)

Future Lepton Collider Experiments (FCC-ee, CEPC)

Neutron Optical Parity and Time-Reversal EXperiment (NOPTREX)

Neutrinoless Double Beta Decay (AMoRE)

최근 5년간 주요논문

1. Sehwook Lee, Michele Livan, Richard Wigmans, Dual-Readout Calorimetry, Rev. Mod. Phys. 90, 025002 (2018)


2. H.W. Bae, E.J. Jeon, Y.D. Kim, S.W. Lee, Neutron and muon-induced background studies for the AMoRE double-beta decay experiment, Astroparticle Physics 114, 60-67 (2020) 


3. FCC Physics Opportunities, European Physical Journal C, 79:474 (2019)


4. FCC-ee: The Lepton Collider, European Physical Journal Special Topics 228, 261 (2019)


5. FCC-hh: The Hadron Collider, European Physical Journal Special Topics 228, 755 (2019)


6. HE-LHC: The High-Energy Large Hadron Collider, European Physical Journal Special Topics 228, 1109 (2019)


7. CMS Collaboration, Inclusive search for supersymmetry in pp collisions at sqrt(s)=13 TeV using razor variables and boosted object identification in zero and one lepton final states, JHEP 03, 031 (2019)


8. CMS Collaboration, Search for excited leptons in ll\gamma final states in proton-proton collisions at sqrt(s) = 13TeV, JHEP 04, 015 (2019)


9. Sehwook Lee, John Hauptman, Richard Wigmans, Where the energy goes?, 2018 Physics World Focus on Instruments and Vacuum, August 2018


10. M. Antonello, et al, Test of a dual-readout fiber calorimeter with SiPM light sensors, Nucl. Instr. and Meth. in Phys.Res. A 899, 52 (2018)


11. Sehwook Lee, Michele Livan, Richard Wigmans, On the limits of the hadronic energy resolution of calorimeters, Nucl. Instr. and Meth. in Phys. Res. A 882, 148 (2018)


12. Sehwook Lee, et al., Hadron detection with a dual-readout fiber calorimeter, Nucl. Instr. and Meth. in Phys. Res. A 866, 76 (2017)


13. Michele Cascella, Silvia Franchino, Sehwook Lee, Fiber and crystals dual readout calorimeters, International Journal of Modern Physics A Vol. 31, No. 33,1644024 (2016)


14. A. Cardini, et al., The small-angle performance of a dual-readout fiber calorimeter, Nucl. Instr. and Meth. in Phys. Res. A 808, 41 (2016)

연구실 소개

입자물리학은 우주의 숨겨진 세상을 밝혀내는데 핵심적인 역할을 해온 학문입니다. 지난 세기동안 입자물리학의 혁명적인 발견과 더불어 2013년 힉스입자를 발견함으로써 근본적인 힘에 의해 지배를 받는 기본적인 입자의 거동을 더욱 더 깊이 이해 할 수 있게 되었습니다. 그러나 여전히 입자물리학에서는 풀리지 않는 여러 문제들이 있습니다. 대표적으로 우리 우주의 baryon asymmetry, 암흑물질, 암흑에너지, 자기홀극의 존재, 초대칭 입자의 존재, Grand Unified Theory 등이 있습니다. 또한 힉스입자의 특성에 관련된 연구와 힉스매카니즘과 질량의 기원의 관계에 대한 연구도 여전히 진행 중에 있습니다.



 

우리 연구실은 이러한 입자물리학의 문제들 중 우주의 baryon asymmetry에 관한 문제를 탑-반탑쿼크쌍을 생성하는 사건을 통해 연구하고 있습니다. 특히 이 연구는 스위스 제네바에 있는 유럽 핵 및 입자물리 연구소 (CERN)의 Compact Muon Solenoid (CMS) 입자 검출기를 통해 양성자-양성자 충돌로 부터 생성되는 탑-반탑쿼크 사건을 찾아내어 baryon asymmetry 연구를 수행하고 있습니다. 뿐만 아니라 자기 홀극의 존재를 탐색하기 위하여 미국 페르미 연구소의 D0 실험에서 부터 여러 노하우를 축적해 왔으며 차후 이 연구를 CMS 실험에서 수행하는 것에 관심을 두고 있습니다.


입자물리학 실험은 이러한 물리학적 의문을 해결하기 위하여 입자물리학자들의 손으로 직접 입자검출기를 연구, 개발 및 제작하여 실험에 쓰고 있습니다. 우리 연구실은 CERN의 공식 프로젝트인 RD52 (DREAM) 캘로리미터 프로젝트에 참여하고 있으며 새로운 개념의 캘로리미터를 연구하고 있습니다. 캘로리미터는 입자의 에너지를 측정할 뿐만 아니라 입자의 종류도 구분해내는 역할을 하며 현대 입자물리학 실험의 핵심이 되어 온 입자 검출기 입니다. 특히 RD52 (DREAM) 캘로리미터는 electromagnetic shower와 hadron shower의 물리적인 특성을 정확히 이해함으로써 전자, 양전자, 광자, 단일 하드론과 젯의 에너지 측정 분해능을 개선하기 위해 노력하고 있습니다. 특히 하드론에 대한 에너지 측정 분해능을 이론적 한계치인 15%/sqrt{E} 까지 끌어 올리는 것을 궁극적인 목표로 두고 연구, 개발 하고 있습니다.


자세한 내용은 연구실 웹페이지 http://majorana.knu.ac.kr를 참조하고 더 많은 의문점이 생기면 제1과학관 219호 찾아 오시길 바랍니다.