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

Title
Search for pair production of first and second generation leptoquarks in proton-proton collisions at root s=8 TeV
Author
김태정
Keywords
SU(15) GRAND UNIFICATION; SCALAR LEPTOQUARKS; P(P)OVER-BAR COLLISIONS; CONSTRAINTS; DECAY
Issue Date
2016-02
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 93, NO 3, Article number 032004, Page. 1-1
Abstract
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 to date.
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.032004http://hdl.handle.net/20.500.11754/31863
ISSN
2470-0010; 2470-0029
DOI
10.1103/PhysRevD.93.032004
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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