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Searching Beyond the Standard Model With the ATLAS Experiment: B − L R-Parity Violating Supersymmetry
Searching Beyond the Standard Model With the ATLAS Experiment: B − L R-Parity Violating Supersymmetry
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103140
- ISBN
- 9798280759305
- DDC
- 530
- 저자명
- Osojnak, Lauren.
- 서명/저자
- Searching Beyond the Standard Model With the ATLAS Experiment: B − L R-Parity Violating Supersymmetry
- 발행사항
- [Sl] : University of Pennsylvania, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 209 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Thomson, Evelyn.
- 학위논문주기
- Thesis (Ph.D.)--University of Pennsylvania, 2025.
- 초록/해제
- 요약This dissertation presents two searches for supersymmetric particles performed with data collected from the ATLAS detector at the Large Hadron Collider. These searches are motivated by a supersymmetric model with an extra local symmetry U(1)B−L. In this model the charged and neutral winos (superpartners to the Standard Model gauge bosons) or scalar top quarks may be the lightest supersymmetric particle and can decay through an R-parity violating coupling. The first search is presented for direct pair production of the stop, the supersymmetric partner of the top quark, in a decay through an R-parity violating coupling to a charged lepton and a b-quark. The dataset corresponds to an integrated luminosity of 140 fb−1 of proton-proton collisions at a center-of-mass energy of √ s = 13 TeV collected between 2015 and 2018 by the ATLAS detector at the Large Hadron Collider. The final state has two charged leptons (electrons or muons) and two b-jets. No significant excess is observed over the Standard Model background and exclusion limits on stop pair production are set at 95% confidence level. The corresponding lower limits on the stop mass for 100% branching ratios to a b-quark and an electron, muon, or tau-lepton are 1.9 TeV, 1.8 TeV and 800 GeV, respectively, extending the reach of previous Large Hadron Collider searches. The second search is for charged and neutral winos (charginos and neutralinos) using proton-proton collisions with the ATLAS detector at the Large Hadron Collider with a center-of-mass energy of √ s = 13 TeV collected between 2015 and 2018 and √ s = 13.6 TeV collected between 2022 and 2023. This search targets couplings of the chargino to muons or electrons, decays of the Higgs bosons to b-quarks, and events with one or two leptons in the final state. Work on the operation and calibration of the ATLAS Transition Radiation Tracker is also presented.
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 일반주제명
- Energy
- 일반주제명
- Particle physics
- 일반주제명
- Computational physics
- 키워드
- ATLAS detector
- 키워드
- R-parity
- 키워드
- Quark
- 기타저자
- University of Pennsylvania Physics and Astronomy
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103140
■006m o d
■007cr#unu||||||||
■020 ▼a9798280759305
■035 ▼a(MiAaPQ)AAI31993966
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aOsojnak, Lauren.
■24510▼aSearching Beyond the Standard Model With the ATLAS Experiment: B − L R-Parity Violating Supersymmetry
■260 ▼a[Sl]▼bUniversity of Pennsylvania▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a209 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Thomson, Evelyn.
■5021 ▼aThesis (Ph.D.)--University of Pennsylvania, 2025.
■520 ▼aThis dissertation presents two searches for supersymmetric particles performed with data collected from the ATLAS detector at the Large Hadron Collider. These searches are motivated by a supersymmetric model with an extra local symmetry U(1)B−L. In this model the charged and neutral winos (superpartners to the Standard Model gauge bosons) or scalar top quarks may be the lightest supersymmetric particle and can decay through an R-parity violating coupling. The first search is presented for direct pair production of the stop, the supersymmetric partner of the top quark, in a decay through an R-parity violating coupling to a charged lepton and a b-quark. The dataset corresponds to an integrated luminosity of 140 fb−1 of proton-proton collisions at a center-of-mass energy of √ s = 13 TeV collected between 2015 and 2018 by the ATLAS detector at the Large Hadron Collider. The final state has two charged leptons (electrons or muons) and two b-jets. No significant excess is observed over the Standard Model background and exclusion limits on stop pair production are set at 95% confidence level. The corresponding lower limits on the stop mass for 100% branching ratios to a b-quark and an electron, muon, or tau-lepton are 1.9 TeV, 1.8 TeV and 800 GeV, respectively, extending the reach of previous Large Hadron Collider searches. The second search is for charged and neutral winos (charginos and neutralinos) using proton-proton collisions with the ATLAS detector at the Large Hadron Collider with a center-of-mass energy of √ s = 13 TeV collected between 2015 and 2018 and √ s = 13.6 TeV collected between 2022 and 2023. This search targets couplings of the chargino to muons or electrons, decays of the Higgs bosons to b-quarks, and events with one or two leptons in the final state. Work on the operation and calibration of the ATLAS Transition Radiation Tracker is also presented.
■590 ▼aSchool code: 0175.
■650 4▼aPhysics
■650 4▼aQuantum physics
■650 4▼aEnergy
■650 4▼aParticle physics
■650 4▼aComputational physics
■653 ▼aLarge Hadron Collider
■653 ▼aATLAS detector
■653 ▼aR-parity
■653 ▼aQuark
■653 ▼aProton-proton collisions
■690 ▼a0605
■690 ▼a0599
■690 ▼a0798
■690 ▼a0216
■690 ▼a0791
■71020▼aUniversity of Pennsylvania▼bPhysics and Astronomy.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0175
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357153▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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