Elementary Particle Physics Group @ Hanyang University
Elementary Particle Physics Group
We are involved in the CMS experiment at the Large Hadron Collider (LHC) CERN. The LHC is located at the border between Switzerland and France. The LHC is used to accelerate protons up to near the speed of light and collides protons together. The CMS detector is situated around 100 m below the surface. We use this detector to detect particles from the collisions. From the proton-proton collisions at high energy, new particles can be created and decayed into stable particles immediately. We need to be detectives to figure out the culprits, new particles!
Physics
- Top quark pair production differential cross section measurement
- Measurement of $t\bar{t}b\bar{b}$ cross section
- Flavour Changing Neutral Current search
- Lepton Flavour Violation search
Detector
- CMS RPC detector upgrade R&D
- CMS RPC detector performance measurement
Computing
- Data grid computing
- Monte-Carlo generators
Members
Professor
Tae-Jeong Kim
- 2022.3- : Spokesperson for the Korea CMS Collaboration
- 2023.9- : CMS Muon System Deputy Manager
- 2023.9- : CMS Award committee member
- 2021.9-2022 : Top Quark tX group convener
- 2019-2022.8 : CMS RPC Institution Board Chair
- 2014-2015 : CMS Analysis Tool group convener
- 2013 : CMS Top quark cross section group convener
Post Doc.
Ece Asilar
Tianyi Yang
- Search for diHiggs production in association with a top quark pair at CMS
PhD Students
Jieun Choi (2019-)
- RPC + CSC/DT trigger development for RPC Phase II upgrade
- Measurement of ttbb differential cross section
- Dual PhD course of HYU and Lyon (France)
- Search for singly produced Vector-Like Quark T'
- CMS B2G PAG trigger contact person
- CMS BTV POG trigger convener
Juhee Song (2020-)
- Measurement of ttbb differential cross section using DNN
Yeonsu Ryou (2021-)
- Search for LFV in top quark interactions
- Study on application of Spike Neural Network on high energy physics
Master Students
Sungbeom Cho (2023-)
- tthh feasibility study using DNN
Wooyeon Kwon (2024-)
- Performance of muons using Z boson events in Run3
Alumni (Post Doc.)
Dr. Javier Brochero (2015-2017)
- ttbb cross section measurement in lepton+jets channel
- CMS TOP PAG muon contact person
- Now researcher at Instituto de Física de Cantabria (IFCA)
Dr. Junghwan Goh (2016-2018)
- Flavour Changing Neutral Current search
- ttbar cross section measurement in dilepton channel
- CMS RPC DPG coordinator
- Now assistant professor at Kyung Hee University
Dr. Brieu Francois (2018-2020)
- CMS RPC DPG trigger coordinator
- Flavour Changing Neutral Current search
- CERN Fellow (2020-)
Alumni (PhD)
Dr. Jiwon Park (2017-2023)
- Search for FCNC in top quark and Higgs boson interactions
- Search for lepton flavor violation in top production and decay
- CMS RPC DQM developer
- Research fellow at Deutsches Elektronen-Synchrotron (2023-)
Dr. Seohyeon An (2017-2024)
- ttbb differential cross section measurement
- RPC twinMux emulator for CMS PhaseII upgrade
- RPC DQM development
- Researcher at Pohang Accelerator Laboratory (2024-)
Alumni (MS)
Aree Lee (2015-2017)
- ttbar cross section measurement with respect to pileup
Luu Lan (2016-2018)
- Study of muon isolation efficiency in high jet multiplicity environment
Nakyung Kim (2017-2019)
- ttbar cross section measurement
Sumin Jung (2017-2020)
- RPC DQM support
- Search for tZq FCNC
Jongwon Lim (2020-2022)
- Search for LFV in the top quark sector with a muon and tau events
- Tau DQM Development
Events
- 2 Jul 2021 - Use of Deep Learning in various analysis in the CMS experiment, Dr. Ece Asilar (IP2I) Indico
- 4 Jun 2021 - Hunt for the Dark Matter with upgraded CMS detector and Deep Learning Technique, Prof.Chang-Seong Moon (Kyungpook University)
- 23 Mar 2021 - Why do we collide heavy ions?, Prof. Yongsun Kim (Sejong University)
- 15 Jan 2021 - Neuromorphic hardware for embedded learning, Prof. Doo-seok Jeong (Hanyang University)
- 30 Nov 2020 - Hunting for black hole binaries with gravitational waves, Prof. Chunglee Kim (Ewha W. University) Abstract
- May 2020 - Triboson Observation, Dr. Philip Chang
- 12 Dec 2018 - Double Higgs Production in Collider Experiment, Prof. Minho Son
- 7 Sep 2018 - 2nd deep neural network workshop Indico
- 29 Jun 2018 - Top Quark Reconstruction for BSM (external event)
- 11 Jun 2018 - The milliQan experiment: search for milli-charged particles at the LHC, Dr. Jaehyeok Yoo (UCSB)
- 26-28 Feb 2018 - Korea-CMS Workshop (external event)
- 19 Dec 2017 Annual meeting @ EPPHY (internal event)
- 31 Mar 2017 - 신의 입자 힉스, 그 이후 by Tiziano Camporesi, Gian Francesco Giudice
- 30-31 Mar 2017 - International Symposium on the Korea-CERN Scientific Cooperation –Past, Present and Future- (external event)
- 16 Jan 2017 - About top physics at a future linear collider by R. Pöschl
- 11 Jan 2017 - New developments in Monte Carlo tools for new physics by B. Fuks
- 26-29 Dec 2016 - KIAS-QUC Winter School on Collider Physics (external event)
- 26-30 Dec 2016 - 2016 GSDC School of Data Computing (external event)
- 15 Dec 2016 - Annual meeting @ EPPHY (internal event)
- 14 October 2016 - HEP seminar, "Which Higgs is this?" by Prof. C. Neu
- 8 June 2016 - CMS Virtual Tour
- 12 May 2016 - Particle Fever
Links
- EPP@HYU indico: http://indico.epp.hanyang.ac.kr
- EPP@HYU from CERN web: http://hep-hanyang.web.cern.ch/hep-hanyang/
- Taejeong's page: http://tjkim.web.cern.ch/tjkim/
- Class material: phy3026
- Tutorials for newcomer: intro