Sungjin Cho

Junewoo Park

Kyungho Kim

Seokhee Park

URam Jo

Chanseok Park

Kyutae Kim

Youngmin Yook

Hanjin Kim

Youngsoo Sohn

Junhyung Heo

Seulgi Lee

Honggi Kim

Duyong Jeong

Chorong Lim

Kyungsan Choi

Oksu Sun

Sunghyun Kyung

Kyungcheol Han

Wongi Hong

Inchan Hwang

Taehan Kim

Sanghoon Jeong

Hongjoon Ahn

Seongwook Moon

Supul Kim

Jiwon Seo

Yeowoong Yoon

Jiyeon Han

Jongho Lee

Donghoon Jang

Hwidong Yoo

Woocheon Park

Dongwook Jang

The Yonsei High Energy Physics (YHEP) group is actively involved in experimental particle physics research. Our primary focus is on unraveling the fundamental mysteries of the universe, specifically by studying the properties of elementary particles and their interactions. We are key contributors to the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN, Switzerland, as well as the Liquid Argon Neutrino Detector (LArND) project. Our research spans a wide range of topics, including the search for new physics phenomena beyond the Standard Model, precision measurements of Standard Model processes, and the development of cutting-edge detector technologies.

연세 고에너지 물리학 (YHEP) 그룹은 실험 입자 물리학 연구에 적극적으로 참여하고 있습니다. 우리의 주요 목표는 기본 입자의 특성과 상호 작용을 연구하여 우주의 근본적인 미스터리를 밝히는 것입니다. 우리는 스위스 CERN의 대형 강입자 충돌기(LHC)에 있는 CMS(Compact Muon Solenoid) 실험과 액체 아르곤 중성미자 검출기(LArND) 프로젝트의 핵심 기여자입니다. 우리의 연구는 표준 모델을 넘어서는 새로운 물리학 현상 탐색, 표준 모델 과정의 정밀 측정, 그리고 최첨단 검출기 기술 개발을 포함한 광범위한 주제를 다룹니다.

Study of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo mathvariant="bold">+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo mathvariant="bold">−</mml:mo></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mo mathvariant="bold">+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo mathvariant="bold">−</mml:mo></mml:msup><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>and Observation of a Charged Charmoniumlike State at Belle

First Measurement of the Rate for the Inclusive Radiative Penguin Decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">b</mml:mi><mml:mo>→</mml:mo><mml:mi mathvariant="italic">s</mml:mi><mml:mi mathvariant="italic">γ</mml:mi></mml:math>

Search for lepton-flavor-violating τ decays into three leptons with 719 million produced <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mi>τ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>τ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> pairs

The Physics of the B Factories

The surface detector array of the Telescope Array experiment

Physics achievements from the Belle experiment

Measurement of the branching ratio of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>D</mml:mi><mml:mrow><mml:mo>*</mml:mo><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mi>τ</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msub><mml:mover accent="true"><mml:mi>ν</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover><mml:mi>τ</mml:mi></mml:msub></mml:math> relative to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:msub><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:mrow><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math> decays with a semileptonic tagging method

INDICATIONS OF INTERMEDIATE-SCALE ANISOTROPY OF COSMIC RAYS WITH ENERGY GREATER THAN 57 EeV IN THE NORTHERN SKY MEASURED WITH THE SURFACE DETECTOR OF THE TELESCOPE ARRAY EXPERIMENT

Observation of the decay B0 → Λc+p

New air fluorescence detectors employed in the Telescope Array experiment

Observation of a Near-Threshold Enhancement in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mo>→</mml:mo><mml:msubsup><mml:mi>Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:msubsup><mml:mi>Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>−</mml:mo></mml:msubsup></mml:math>Cross Section Using Initial-State Radiation

Improved measurement of mixing-induced<i>CP</i>violation in the neutral<i>B</i>meson system

Study of Ultra-High Energy Cosmic Ray composition using Telescope Array’s Middle Drum detector and surface array in hybrid mode

New search for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>τ</mml:mi><mml:mo>→</mml:mo><mml:mi>μ</mml:mi><mml:mi>γ</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:mi>τ</mml:mi><mml:mo>→</mml:mo><mml:mi>e</mml:mi><mml:mi>γ</mml:mi></mml:math> decays at Belle

Search for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>h</mml:mi><mml:mi>ν</mml:mi><mml:mover accent="true"><mml:mi>ν</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover></mml:math> decays with semileptonic tagging at Belle

Hadronic structure in the decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>τ</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mo>→</mml:mo><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mi>τ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>

Observation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo>→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:mi>γ</mml:mi></mml:math>and Search for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo>→</mml:mo><mml:msup><mml:mi>ψ</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mi>γ</mml:mi></mml:math>in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>Decays

Dalitz analysis of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:mi>K</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>ψ</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:math>decays and the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4430</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo></mml:msup></mml:math>

Measurement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>2</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math>via initial state radiation at Belle

Measurement of the decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>B</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>D</mml:mi><mml:mo>ℓ</mml:mo><mml:msub><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math>in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo stretchy="false">|</mml:mo><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">|</mml:mo></mml:math>

Search for long-lived particles decaying to a pair of muons in pp collisions at $\sqrt{s}=13$ TeV

Search for dark matter produced in association with a Higgs boson decaying to two photons at $\sqrt{s}=13$ TeV

Measurement of the Higgs boson mass in the H → ZZ* → 4l and H → γγ channels with the ATLAS detector at the LHC

Measurement of the inclusive W and Z boson production cross sections in pp collisions at $\sqrt{s}=13$ TeV

Search for new phenomena in final states with two same-sign leptons or three leptons and jets in pp collisions at $\sqrt{s}=13$ TeV

Measurement of differential Z boson production cross sections in pp collisions at $\sqrt{s}=7$ TeV

First results from the MicroBooNE experiment

Search for sterile neutrinos with the MicroBooNE detector

The Daya Bay Reactor Neutrino Experiment

Measurements of branching fractions, CP and isospin asymmetries of B→ργ using combined data of Belle and Belle II

Search for dark photon in B0→A′A′, A′→e+e−, μ+μ− and π+π− decays at Belle

Search for new light vector boson using J/ΨJ/Ψ at BESIII and Belle II

Probing sterile neutrinos in B (D)B(D) meson decays at Belle II (BESIII)

Search for muon-philic new light gauge boson at Belle II

Observation of Air Shower in Uijeongbu Area using the COREA Prototype Detector System

Search for a massive invisible particle X0 in B+→e+X0 and B+→μ+X0 decays

Decay of B^\pm \to \tau^\pm +B±→τ±+ “missing momentum” and direct measurement of the mixing parameter U_{\tau N}UτN

Yonsei High Energy Physics Lab

교수님 소개

Young-joon Kwon

연구실 소개

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Measurements of branching fractions, CP and isospin asymmetries of B→ργ using combined data of Belle and Belle II

Search for long-lived particles decaying to a pair of muons in pp collisions at $\sqrt{s}=13$ TeV

Search for dark matter produced in association with a Higgs boson decaying to two photons at $\sqrt{s}=13$ TeV

연구실 보유 특허

대학별 입시끈

우리 연구실 모집

교수님 소개

Young-joon Kwon

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Measurements of branching fractions, CP and isospin asymmetries of B→ργ using combined data of Belle and Belle II

Search for long-lived particles decaying to a pair of muons in pp collisions at $\sqrt{s}=13$ TeV

Search for dark matter produced in association with a Higgs boson decaying to two photons at $\sqrt{s}=13$ TeV

연구실 보유 특허

최근 3년간 연구실적 높은 연구실

대학별 입시끈

우리 연구실 모집