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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 裴思達(Stathes Paganis) | |
| dc.contributor.author | Chi-Chun Hsu | en |
| dc.contributor.author | 徐啟峻 | zh_TW |
| dc.date.accessioned | 2021-06-17T01:43:15Z | - |
| dc.date.available | 2017-08-01 | |
| dc.date.copyright | 2017-08-01 | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2017-07-27 | |
| dc.identifier.citation | [1] Cinzia De Melis. The CERN accelerator complex. Complexe des accélérateurs du CERN, Jul 2016.
[2] CERN, the European Organization for Nuclear Research. CMS detector design. Available at http://cms.web.cern.ch/news/cms-detector-design. [3] D. Sprenger, M. Weber, R. Adolphi, R. Brauer, L. Feld, K. Klein, A. Ostaptchuk, S. Schael, and B. Wittmer. Validation of Kalman Filter alignment algorithm with cosmic-ray data using a CMS silicon strip tracker endcap. JINST, 5:P06007, 2010. [4] The University of Mississippi HEP, high energy physics group. CMS Pixel Detector. Avail- able at http://www.phy.olemiss.edu/HEP/cms/pixel/. [5] CERN, the European Organization for Nuclear Research. Detector Plots. Available at http://cms-project-ecal-p5.web.cern.ch/cms-project-ECAL-P5/ approved/detector.htm. [6] S Chatrchyan et al. Identification and Filtering of Uncharacteristic Noise in the CMS Hadron Calorimeter. JINST, 5:T03014, 2010. [7] P. Paolucci et al. CMS Resistive Plate Chamber overview, from the present system to the upgrade phase I. PoS, RPC2012:004, 2012. [JINST8,P04005(2013)]. [8] P. D. Dauncey, M. Kenzie, N. Wardle, and G. J. Davies. Handling uncertainties in back- ground shapes. JINST, 10(04):P04015, 2015. [9] CMS Collaboration. Search for heavy resonances decaying into a vector boson and a Higgs boson in hadronic final states with 2016 data. 2017. [10] The ATLAS collaboration. Search for Heavy Resonances Decaying to a W or Z Boson and a Higgs Boson in the qq ̄(0)bb ̄ Final State in pp Collisions at ps = 13 TeV with the ATLAS Detector. 2017. [11] CMS Collaboration. Measurements of properties of the Higgs boson in the diphoton decay channel with the full 2016 data set. 2017. [12] Maria Hoffmann, Anna Kaminska, Rosy Nicolaidou, and Stathes Paganis. Probing Com- positeness with Higgs Boson Decays at the LHC. Eur. Phys. J., C74(11):3181, 2014. [13] Albert M Sirunyan et al. Combination of searches for heavy resonances decaying to WW, WZ, ZZ, WH, and ZH boson pairs in proton-proton collisions at sqrt(s) = 8 and 13 TeV. 2017. [14] Florian Beaudette. The CMS Particle Flow Algorithm. pages 295–304, 2013. [15] D. de Florian et al. Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector. 2016. [16] First results on Higgs to gammagamma at 13 TeV. (CMS-PAS-HIG-15-005), 2016. [17] Glen Cowan, Kyle Cranmer, Eilam Gross, and Ofer Vitells. Asymptotic formulae for likelihood-based tests of new physics. Eur. Phys. J., C71:1554, 2011. [Erratum: Eur. Phys. J.C73,2501(2013)]. [18] Pekka Sinervo. Definition and Treatment of Systematic Uncertainties in High Energy Physics and Astrophysics. eConf, C030908:TUAT004, 2003. [122(2003)]. [19] CMS Collaboration. CMS Luminosity Measurements for the 2016 Data Taking Period. 2017. [20] Serguei Chatrchyan et al. Search for the standard model Higgs boson produced in associ- ation with a W or a Z boson and decaying to bottom quarks. Phys. Rev., D89(1):012003, 2014. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/67670 | - |
| dc.description.abstract | 這份研究使用了緊湊緲子線圈所記錄到大強子對撞機於2016年RunII期間，在13TeV對撞質心能量運轉下產生的35.9fb-1的質子與質子的對撞資料，分析了標準模型下，希格斯粒子在雙光子衰變通道下，伴隨了一個弱作用玻色子衰變為雙噴流的事件。此外，我們還提出了一個找尋到TeV能量尺度下超越標準模型之重玻色子的可能性。 | zh_TW |
| dc.description.abstract | The potential of a search for the Standard Model Higgs boson decaying to two photons associated with a W±/Z boson in the hadronic final state is studied, using proton-proton collision data, at center of mass energy √s = 13TeV and integral luminosity of 35.9 fb-1 recorded by the Compact Muon Solenoid detector at the Large Hadron Collider in the year of 2016. In addition, the potential of discovery of new heavy vector bosons predicted by new physics beyond the Standard Model, is presented. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T01:43:15Z (GMT). No. of bitstreams: 1 ntu-106-R04222042-1.pdf: 5512492 bytes, checksum: 0cc8862b8a8fc99f0e80ca9268379121 (MD5) Previous issue date: 2017 | en |
| dc.description.tableofcontents | 1 Introduction.............................. 1
1.1 The Standard Model.............................. 1 1.2 Higgs Mechanism ............................... 2 1.3 Higgs-Strahlung ................................ 3 1.4 Aims and Structure of this Thesis....................... 4 2 The LHC and CMS Experiment.............................. 5 2.1 The Large Hadron Collider........................... 5 2.2 The CMS Experiment ............................. 6 2.2.1 Super conducting Magnet ....................... 7 2.2.2 Inner Tracker.............................. 7 2.2.3 The Electromagnetic Calorimeter and the Preshower Detector . . . . 8 2.2.4 Hadron Calorimeter .......................... 9 2.2.5 Muon Detector............................. 10 2.2.6 Trigger................................. 11 3 Event reconstruction.............................. 12 3.1 Basic Objects ................................. 12 3.1.1 Track Reconstruction ......................... 12 3.1.2 Vertex Reconstruction......................... 13 3.1.3 ECAL Clustering............................ 13 3.1.4 HCAL Towering ............................ 13 3.1.5 Stand alone Muon ........................... 14 3.2 The Particle Flow Event Reconstruction.................... 14 3.2.1 Muon Reconstruction ......................... 14 3.2.2 Electron Reconstruction ........................ 14 3.2.3 Photon Reconstruction......................... 15 3.2.4 Jet Reconstruction........................... 15 4 Data and Simulated Samples.............................. 17 4.1 Data...................................... 17 4.2 Simulation ................................... 17 4.2.1 Background Samples.......................... 18 4.2.2 Signal Samples............................. 18 4.3 Pile-up..................................... 19 4.4 High Level Trigger............................... 19 5 Preselection.............................. 21 5.1 List of Preselection Cuts............................ 21 5.2 Vertex Identification .............................. 22 5.3 Photon Identification.............................. 23 6 Event Selection.............................. 24 6.1 Diphoton Event Selection ........................... 24 6.2 Control Region and Signal Region....................... 24 6.3 Kinematic-Variable distributions from MC................... 25 6.3.1 Correlation between kinematic variables . . . . . . . . . . . . . . . . 27 6.4 Optimization of Event Selection........................ 29 6.4.1 Genetic Algorithm ........................... 29 6.5 Validation of MC using data.......................... 29 7 Signal and Background Modeling.............................. 33 7.1 Signal Modeling ................................ 33 7.2 Background Modeling ............................. 34 8 Systematic Uncertainties.............................. 37 9 Results.............................. 40 9.1 SM Higgs yield from a fit to Mgg distribution................. 40 9.1.1 Final Fits of the Diphoton Mass.................... 40 9.1.2 Higgs Signal Strength ......................... 42 9.2 Discovery Potential of a search for new Heavy Vector Bosons . . . . . . . . 43 10 Conclusions.............................. 48 Reference.............................. 49 | |
| dc.language.iso | en | |
| dc.subject | 雙光子系統 | zh_TW |
| dc.subject | 希格斯粒子 | zh_TW |
| dc.subject | 雙噴流 | zh_TW |
| dc.subject | 重玻色子 | zh_TW |
| dc.subject | diphoton production channel | en |
| dc.subject | Higgs boson | en |
| dc.subject | heavy resonances | en |
| dc.subject | hadronic | en |
| dc.title | 於緊湊緲子線圈質心能量十三兆電子伏特下尋找透過希格斯玻色子衰變為雙光子伴隨弱作用玻色子衰變為雙噴流的事件 | zh_TW |
| dc.title | Search for a Higgs Boson Decaying into Two Photons associated with a Z/W Boson in the Hadronic Final State with √s = 13 TeV at CMS | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 105-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳凱風,張寶棣,余欣珊 | |
| dc.subject.keyword | 希格斯粒子,雙光子系統,雙噴流,重玻色子, | zh_TW |
| dc.subject.keyword | Higgs boson,diphoton production channel,hadronic,heavy resonances, | en |
| dc.relation.page | 50 | |
| dc.identifier.doi | 10.6342/NTU201700795 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2017-07-28 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理學研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
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