start [Elementary Particle Physics

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====== Elementary Particle Physics Group @ Hanyang University ======
<panel type="success" title="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! 
</panel>
<grid>
<col xs="4"><panel type="info" title="Physics" icon="fa fa-house">
  * 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
</panel></col>
<col xs="4"><panel type="info" title="Detector" icon="fa fa-house">  
  * <nowiki>CMS</nowiki> RPC detector upgrade R&D
  * <nowiki>CMS</nowiki> RPC detector performance measurement
</panel></col>
<col xs="4"><panel type="info" title="Computing" icon="">
  * Data grid computing
  * Monte-Carlo generators
</panel></col></grid>
<panel type="success" title="Members">

<grid><col xs="2">**Professor**</col><col xs="3">Tae-Jeong Kim </col><col xs="7">
  * 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

</col></grid>
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<grid><col xs="2">**Post Doc.**</col><col xs="3">Ece Asilar </col><col xs="7">
  * [[CMS]] RPC trigger coordinator
  * iRPC implementation in the software for future data taking
  * Search for lepton flavor violation in top production and decay at [[CMS]]
</col></grid>
<grid><col xs="2"></col><col xs="3">Tianyi Yang </col><col xs="7">
  * Search for diHiggs production in association with a top quark pair at [[CMS]]
</col></grid>
----

<grid><col xs="2">**PhD Students**</col><col xs="3">Jieun Choi (2019-)</col><col xs="7">
  * 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
</col></grid>

<grid><col xs="2"></col><col xs="3">Juhee Song (2020-)</col><col xs="7">
  * Measurement of ttbb differential cross section using DNN
</col></grid>
<grid><col xs="2"></col><col xs="3">Yeonsu Ryou (2021-)</col><col xs="7">
  * Search for LFV in top quark interactions
  * Study on application of Spike Neural Network on high energy physics
</col></grid>

<grid><col xs="2">**Master Students**</col><col xs="3">Sungbeom Cho (2023-)</col><col xs="7">
  * tthh feasibility study using DNN
</col></grid>
<grid><col xs="2"></col><col xs="3">Wooyeon Kwon (2024-)</col><col xs="7">
  * Performance of muons using Z boson events in Run3
</col></grid>
----

<grid><col xs="2">**Alumni (Post Doc.)**</col><col xs="3">Dr. Javier Brochero (2015-2017)</col><col xs="7">
  * ttbb cross section measurement in lepton+jets channel
  * <nowiki>CMS</nowiki> TOP PAG muon contact person
  * Now researcher at Instituto de Física de Cantabria (IFCA)
</col></grid>
<grid><col xs="2"></col><col xs="3">Dr. Junghwan Goh (2016-2018)</col><col xs="7">
  * Flavour Changing Neutral Current search
  * ttbar cross section measurement in dilepton channel
  * <nowiki>CMS</nowiki> RPC DPG coordinator
  * Now assistant professor at Kyung Hee University
</col></grid>
<grid><col xs="2"></col><col xs="3">Dr. Brieu Francois (2018-2020)</col><col xs="7">
  * <nowiki>CMS</nowiki> RPC DPG trigger coordinator
  * Flavour Changing Neutral Current search
  * CERN Fellow (2020-)
</col></grid>

<grid><col xs="2">**Alumni (PhD)**</col><col xs="3">Dr. Jiwon Park (2017-2023)</col><col xs="7">
  * Search for FCNC in top quark and Higgs boson interactions
  * Search for lepton flavor violation in top production and decay
  * <nowiki>CMS</nowiki> RPC DQM developer
  * Research fellow at Deutsches Elektronen-Synchrotron (2023-)
</col></grid>

<grid><col xs="2"></col><col xs="3">Dr. Seohyeon An (2017-2024)</col><col xs="7">
  * ttbb differential cross section measurement
  * RPC twinMux emulator for <nowiki>CMS</nowiki> PhaseII upgrade 
  * RPC DQM development
  * Researcher at Pohang Accelerator Laboratory (2024-)
</col></grid>

<grid><col xs="2">**Alumni (MS)**</col><col xs="3">Aree Lee (2015-2017)</col><col xs="7">
  * ttbar cross section measurement with respect to pileup
</col></grid>

<grid><col xs="2"></col><col xs="3">Luu Lan (2016-2018)</col><col xs="7">
  * Study of muon isolation efficiency in high jet multiplicity environment 
</col></grid>
<grid><col xs="2"></col><col xs="3">Nakyung Kim (2017-2019)</col><col xs="7">
  * ttbar cross section measurement
</col></grid>
<grid><col xs="2"></col><col xs="3">Sumin Jung (2017-2020)</col><col xs="7">
  * RPC DQM support
  * Search for tZq FCNC
</col></grid>
<grid><col xs="2"></col><col xs="3">Jongwon Lim (2020-2022)</col><col xs="7">
  * Search for LFV in the top quark sector with a muon and tau events
  * Tau DQM Development
</col></grid>
</panel>


<panel type="info" title="Events">
  * 2 Jul 2021 - Use of Deep Learning in various analysis in the CMS experiment, Dr. Ece Asilar (IP2I) [[https://indico.epp.hanyang.ac.kr/event/191/|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) [[http://physics.hanyang.ac.kr/seminars/Board_view.asp?mode=mod&idx=1384&BoardID=5&page=1&xsearch=1&xquery=|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 [[https://indico.cern.ch/event/748623/|Indico]]
  * 29 Jun 2018 - [[https://sshep.snu.ac.kr/indico/event/74/|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 - [[https://indico.cern.ch/event/703968/|Korea-CMS Workshop]] (external event)
  * 19 Dec 2017 [[https://indico.epp.hanyang.ac.kr/event/83/|Annual meeting @ EPPHY]] (internal event)
  * 31 Mar 2017 - [[http://indico.epp.hanyang.ac.kr/event/61/|신의 입자 힉스, 그 이후]] by Tiziano Camporesi, Gian Francesco Giudice
  * 30-31 Mar 2017 - [[https://n-ext.inha.ac.kr/indico/event/336/overview|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 - [[http://home.kias.re.kr/MKG/h/WSCP/?pageNo=2548|KIAS-QUC Winter School on Collider Physics]] (external event)
  * 26-30 Dec 2016 - [[https://indico.cern.ch/event/577216|2016 GSDC School of Data Computing]] (external event)
  * 15 Dec 2016 - Annual meeting @ EPPHY (internal event)
  * 14 October 2016 - [[http://indico.epp.hanyang.ac.kr/event/11|HEP seminar, "Which Higgs is this?"]] by Prof. C. Neu
  * 8 June 2016 - [[http://indico.epp.hanyang.ac.kr/event/5/|CMS Virtual Tour]] 
  * 12 May 2016 - [[http://indico.epp.hanyang.ac.kr/event/2/|Particle Fever]]
</panel>

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<grid>
<col sm="7"><panel type="warning" title="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: [[class:phy3026]]
  * Tutorials for newcomer: [[tutorial:start|intro]]
</panel></col>
<col sm="5"><panel type="danger" title="Internal pages">
  * Internal pages: [[internal:start]]
  * [[internal:undergrad_2017|학부생 프로젝트]]
  * HTOP cluster User guide [[internal:userguide]]
  * System admin [[internal:systemadminhowto|howto]] [[internal:systemadminlog|logs]] [[internal:test]]
</panel></col>
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