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Search for single production of scalar leptoquarks in proton-proton collisions at root s=8 TeV

Title
Search for single production of scalar leptoquarks in proton-proton collisions at root s=8 TeV
Author
김태정
Keywords
CONSTRAINTS; QUARKS
Issue Date
2016-02
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 93, NO 3, Article number 032005, Page. 1-1
Abstract
A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. The search is based on a data sample of proton-proton collisions at center-of-mass energy root s = 8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb(-1). Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first- generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.032005http://hdl.handle.net/20.500.11754/31864
ISSN
2470-0010; 2470-0029
DOI
10.1103/PhysRevD.93.032005
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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