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    NCU Institutional Repository > 理學院 > 物理學系 > 期刊論文 >  Item 987654321/107603


    請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/107603


    題名: Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV
    作者: 余欣珊;Levine, Aaron;Poehlsen, Jennifer;Apresyan, Artur;Bagliesi, Giuseppe;Velkovska, Julia;Varelas, Nikos;Seva, Tomislav;Innocente, Vincenzo;Swain, Sanjay Kumar;Hadjiiska, Roumyana;Gascon, Susan;Geiser, Achim;Spalding, William J;Shukla, Prashant;Colaleo, Anna;Piotrzkowski, Krzysztof;Steinbrück, Georg;Craig, Nathaniel;Avetisyan, Aram;Rose, Anthony;Li, Qiang;Elliott-Peisert, Anna;Farrell, Chris;Mittal, Monika;Pant, Lalit Mohan;Tricomi, Alessia;Martinez, German;Cockerill, David JA;Ferencek, Dinko;Marchesini, Ivan;Haas, Jeff;Christopher, Grant;Tosi, Nicolò;Ekmedzic, Marko;Lu, Ying;Brooke, James John;Mott, Alexander;Ahmad, Ashfaq;Mohanty, Ajit Kumar;Spiropulu, Maria;De Moraes Gregores, Eduardo;Malcles, Julie;Dewanjee, Ram Krishna;Tamponi, Umberto;Jain, Shilpi;Luyckx, Sten;Danielson, Thomas;Fabbri, Fabrizio;Berry, Edmund;Chwalek, Thorsten;Dupont-Sagorin, Niels;Paktinat Mehdiabadi, Saeid;Szillasi, Zoltan;Bauer, Gerry;Woods, Nathaniel;Hatakeyama, Kenichi;Kazana, Malgorzata;Dumanoglu, Isa;Frueboes, Tomasz;Bachtis, Michail;Costa, Salvatore;Gerosa, Raffaele;Letts, James;Kim, Tae Jeong;Saka, Halil;Skatchkov, Nikolai;Piparo, Danilo;Van Mechelen, Pierre;Castaneda Hernandez, Alfredo;Fulcher, Jonathan;West, Christopher;Gomez, Gervasio;Gninenko, Sergei;Dinardo, Mauro Emanuele;Ptochos, Fotios;Timciuc, Vladlen;Wilken, Rachel;Ford, William T;Damgov, Jordan;Chao, Yuan;Beri, Suman Bala;Cankocak, Kerem;Van Remortel, Nick;Rodozov, Mircho;Halkiadakis, Eva;Navarria, Francesco;Girgis, Semiray;Bellan, Riccardo;Kim, Gui Nyun;Sanders, Stephen;Chang, Sunghyun;Brochet, Sébastien;De La Cruz, Begona;Goldstein, Joel;Naumann-Emme, Sebastian;George, Christopher;Wolszczak, Weronika;Vavilov, Sergey;Dugad, Shashikant;Snow, Gregory R
    貢獻者: 理學院物理學系
    關鍵詞: Bosons;Channels;Decay;Experiment;Fermions;Higgs bosons;High Energy Physics - Experiment;Pair production;Particle Physics;Physics;Searching;Supersymmetry
    日期: 2014-11-21
    上傳時間: 2026-04-23 14:18:41 (UTC+8)
    出版者: American Physical Society
    摘要: 摘要： Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (h) and an LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states states with missing transverse energy E$_{\rm T}^{\rm miss}$. A second aspect is chargino-neutralino pair production, leading to hW states with E$_{\rm T}^{\rm miss}$. The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values. Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, <mml:math display=&quot;inline&quot;>Z</mml:math>, and <mml:math display=&quot;inline&quot;>W</mml:math> bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about <mml:math display=&quot;inline&quot;>19.5 fb−1</mml:math> of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (<mml:math display=&quot;inline&quot;>h</mml:math>) and an LSP or to a <mml:math display=&quot;inline&quot;>Z</mml:math> boson and an LSP, leading to <mml:math display=&quot;inline&quot;>hh</mml:math>, <mml:math display=&quot;inline&quot;>hZ</mml:math>, and <mml:math display=&quot;inline&quot;>ZZ</mml:math> states with missing transverse energy (<mml:math display=&quot;inline&quot;>E<mml:mi mathvariant=&quot;normal&quot;>T</mml:mi>miss</mml:math>). A second aspect is chargino-neutralino pair production, leading to <mml:math display=&quot;inline&quot;>hW</mml:math> states with <mml:math display=&quot;inline&quot;>E<mml:mi mathvariant=&quot;normal&quot;>T</mml:mi>miss</mml:math>. The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the <mml:math display=&quot;inline&quot;>Z</mml:math> and <mml:math display=&quot;inline&quot;>W</mml:math> bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values. Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 inverse femtobarns of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (h) and an LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states with missing transverse energy (ET(miss)). A second aspect is chargino-neutralino pair production, leading to hW states with ET(miss). The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values.
    出版者： American Physical Society
    出版日期： 2014-11-21
    出處： Physical review. D, 2014-11, Vol.90 (9)
    版權： CC0 1.0 - Universal
    識別號： ISSN: 1550-7998
    識別號： ISSN: 2470-0010
    識別號： EISSN: 1550-2368
    識別號： EISSN: 2470-0029
    識別號： DOI: 10.1103/PhysRevD.90.092007
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