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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/74829


    Title: 從質子質子對撞在質量中心能量 13 兆電子 伏特利用緊湊渺子偵測器尋找重粒子衰變 到一對希格斯粒子於四個底夸克最終態;Search for Heavy Resonances Decaying into a Pair of Higgs Bosons in the Four b quark Final State from pp Collisions at √s =13 TeV with the CMS Detector
    Authors: 陳勁瑋;Chen, Ching-Wei
    Contributors: 物理學系
    Keywords: 大強子對撞機;希格斯粒子;緊湊 渺子偵測器;LHC;CMS;heavy resonance;graviton;radion;di-Higgs
    Date: 2017-07-20
    Issue Date: 2017-10-27 15:41:03 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 論文將呈現尋找重粒子衰變到一對希格斯粒子於四個底夸克最終
    態。分析基於大強子對撞機在質量中心能量 13 兆電子伏特利用緊湊
    渺子偵測器在 2016 收集的數據,總亮度為 35.9??−1。希格斯粒子是
    由正反底夸克對重建而成。希格斯噴流將由其質量、?21與底夸克標
    記選定。95% 信心水準利用 CLs 計算生產截面乘以衰變分支上限
    介於重粒子的質量從 1.2 兆電子伏特到 3 兆電子伏特低於 10 fb.;
    A search for heavy resonances decaying to a pair of Higgs bosons in the four b
    quark final state is presented. The analysis is based on the data collected in 2016
    with the CMS detector at LHC at center-of-mass energy √
    s = 13 TeV, corresponding
    to integrated luminosity of 35.9 f b−1
    . The Higgs bosons are reconstructed
    from high momentum b
    ¯b quark pairs. The mass variable, τ21 discriminator, and
    double-b tagger are used for Higgs tagging. The signal regions are separated by
    double-b tagger into two categories. A 95% upper limit on the production cross
    section of σX × B(X → HH → b
    ¯bb¯b) is obtained from the combination of two
    categories with a limit below 10 fb for mX from 1200 to 3000 GeV
    Appears in Collections:[Graduate Institute of Physics] Electronic Thesis & Dissertation

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