Search for pair production of first and second generation leptoquarks in proton-proton collisions at s =8 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106796

Title:	Search for pair production of first and second generation leptoquarks in proton-proton collisions at s =8 TeV
Authors:	余欣珊;Khachatryan, V;Sirunyan, A. M;Tumasyan, A;Adam, W;Asilar, E;Bergauer, T;Brandstetter, J;Brondolin, E;Dragicevic, M;Eroe, J;Flechl, M;Friedl, M;Fruehwirth, R;Ghete, V. M;Hartl, C;Hoermann, N;Hrubec, J;Jeitler, M;Knuenz, V;Koenig, A;Krammer, M;Kraetschmer, I;Liko, D;Matsushita, T;Mikulec, I;Rabady, D;Rahbaran, B;Rohringer, H;Schieck, J;Schoefbeck, R;Strauss, J;Treberer-Treberspurg, W;Waltenberger, W;Wulz, C-E;Mossolov, V;Shumeiko, N;Gonzalez, J. Suarez;Alderweireldt, S;Cor
Contributors:	理學院物理學系
Keywords:	CONSTRAINTS;DECAY;P(P)OVER-BAR COLLISIONS;SCALAR LEPTOQUARKS;SU GRAND UNIFICATION
Date:	2016-02-24
Issue Date:	2026-04-23 13:43:25 (UTC+8)
Publisher:	PHYSICAL REVIEW D
Abstract:	摘要： A search for pair production of first and second generation leptoquarks is performed in final states containing either two charged leptons and two jets, or one charged lepton, one neutrino and two jets, using proton-proton collision data at root s = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb(-1), were recorded with the CMS detector at the LHC. First-generation scalar leptoquarks with masses less than 1010 (850) GeV are excluded for beta = 1.0 (0.5), where beta is the branching fraction of a leptoquark decaying to a charged lepton and a quark. Similarly, second-generation scalar leptoquarks with masses less than 1080 (760) GeV are excluded for beta = 1.0 (0.5). Mass limits are also set for vector leptoquark production scenarios with anomalous vector couplings, and for R-parity violating supersymmetric scenarios of top squark pair production resulting in similar final-state signatures. These are the most stringent limits placed on the masses of vector leptoquarks and RPV top squarks t 出版者： PHYSICAL REVIEW D 出版日期： 2016 識別號： ISSN: 2470-0029 識別號： ISSN: 2470-0010 識別號： EISSN: 2470-0029 識別號： DOI: 10.1103/PhysRevD.93.032004
Appears in Collections:	[Department of Physics] journal & Dissertation

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