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Improving the Search for Higgs Boson Pair Production in the Bottom-Quark and W-Boson Decay Channel Using a Single-Lepton Resolved Final State
Improving the Search for Higgs Boson Pair Production in the Bottom-Quark and W-Boson Decay...
Improving the Search for Higgs Boson Pair Production in the Bottom-Quark and W-Boson Decay Channel Using a Single-Lepton Resolved Final State

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105642
ISBN  
9798265483430
DDC  
530
저자명  
Prado, Antonett.
서명/저자  
Improving the Search for Higgs Boson Pair Production in the Bottom-Quark and W-Boson Decay Channel Using a Single-Lepton Resolved Final State
발행사항  
[Sl] : University of California, Los Angeles, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
174 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-06, Section: B.
주기사항  
Advisor: Saltzberg, David.
학위논문주기  
Thesis (Ph.D.)--University of California, Los Angeles, 2025.
초록/해제  
요약This dissertation presents a CMS search strategy for Higgs boson pair production in the gluon-gluon fusion process in the single-lepton resolved final state of the HH → bbWW channel. The study is based on simulated proton-proton collisions representative of CMS Run 3 conditions at √ s = 13.6 TeV. Events are selected in the single-lepton channel (exactly one electron or muon) and categorized in the resolved topology by jet multiplicity. A systematic comparison between likelihood-ratio- and neural-network-based discriminants is performed; the neural network provides superior separation and is used to set the expected 95% CL upper limit on the signal strength, µ = 19.3, for the single-lepton resolved topology using simulated 2022+2023 samples. The statistical interpretation includes only the integrated-luminosity and statistical uncertainties. In parallel, new low-pT lepton triggers developed within CMS and commissioned in 2024 are expected to increase acceptance for HH → bbWW events in subsequent Run 3 analyses. These developments demonstrate improved sensitivity relative to Run 2 and highlight the methodological progress achieved in preparation for the full Run 3 HH → bbWW analysis.
일반주제명  
Physics
일반주제명  
Energy
일반주제명  
Particle physics
키워드  
Higgs boson
키워드  
Likelihood ratio
키워드  
Machine learning
키워드  
Neural network
키워드  
Muon solenoid detector
기타저자  
University of California, Los Angeles Physics 0666
기본자료저록  
Dissertations Abstracts International. 87-06B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aPrado,  Antonett.
■24510▼aImproving  the  Search  for  Higgs  Boson  Pair  Production  in  the  Bottom-Quark  and  W-Boson  Decay  Channel  Using  a  Single-Lepton  Resolved  Final  State
■260    ▼a[Sl]▼bUniversity  of  California,  Los  Angeles▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a174  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-06,  Section:  B.
■500    ▼aAdvisor:  Saltzberg,  David.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Los  Angeles,  2025.
■520    ▼aThis  dissertation  presents  a  CMS  search  strategy  for  Higgs  boson  pair  production  in  the  gluon-gluon  fusion  process  in  the  single-lepton  resolved  final  state  of  the  HH  →  bbWW  channel.  The  study  is  based  on  simulated  proton-proton  collisions  representative  of  CMS  Run  3  conditions  at  √  s  =  13.6  TeV.  Events  are  selected  in  the  single-lepton  channel  (exactly  one  electron  or  muon)  and  categorized  in  the  resolved  topology  by  jet  multiplicity.  A  systematic  comparison  between  likelihood-ratio-  and  neural-network-based  discriminants  is  performed;  the  neural  network  provides  superior  separation  and  is  used  to  set  the  expected  95%  CL  upper  limit  on  the  signal  strength,  µ  =  19.3,  for  the  single-lepton  resolved  topology  using  simulated  2022+2023  samples.  The  statistical  interpretation  includes  only  the  integrated-luminosity  and  statistical  uncertainties.  In  parallel,  new  low-pT  lepton  triggers  developed  within  CMS  and  commissioned  in  2024  are  expected  to  increase  acceptance  for  HH  →  bbWW  events  in  subsequent  Run  3  analyses.  These  developments  demonstrate  improved  sensitivity  relative  to  Run  2  and  highlight  the  methodological  progress  achieved  in  preparation  for  the  full  Run  3  HH  →  bbWW  analysis.
■590    ▼aSchool  code:  0031.
■650  4▼aPhysics
■650  4▼aEnergy
■650  4▼aParticle  physics
■653    ▼aHiggs  boson
■653    ▼aLikelihood  ratio
■653    ▼aMachine  learning
■653    ▼aNeural  network
■653    ▼aMuon  solenoid  detector
■690    ▼a0605
■690    ▼a0800
■690    ▼a0798
■690    ▼a0791
■71020▼aUniversity  of  California,  Los  Angeles▼bPhysics  0666.
■7730  ▼tDissertations  Abstracts  International▼g87-06B.
■790    ▼a0031
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360947▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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