(CMS Collaboration) Chatrchyan, S.; Brigljević, Vuko; Đurić, Senka; Kadija, Krešo; Luetić, Jelena; Morović, Srećko (2012) Search for pair production of first- and second-generation scalar leptoquarks in pp collisions at √s=7 TeV. Physical Review D, 86 (5). 052013/1-052013/23. ISSN 1550-7998
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Abstract
Results are presented from a search for the pair production of first- and second-generation scalar leptoquarks in proton-proton collisions at √s=7 TeV. The data sample corresponds to an integrated luminosity of 5.0 fb-1, collected by the CMS detector at the LHC. The search signatures involve either two charged leptons of the same flavor (electrons or muons) and at least two jets or a single charged lepton (electron or muon), missing transverse energy, and at least two jets. If the branching fraction of the leptoquark decay into a charged lepton and a quark is assumed to be β=1, leptoquark pair production is excluded at the 95% confidence level for masses below 830 GeV and 840 GeV for the first and second generations, respectively. For β=0.5, masses below 640 GeV and 650 GeV are excluded. These limits are the most stringent to date.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | generation; constraints; mass | ||||||||
| Subjects: | NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields NATURAL SCIENCES > Physics > Astronomy and Astrophysics |
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| Divisions: | Division of Experimental Physics | ||||||||
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| Depositing User: | Krešo Kadija | ||||||||
| Date Deposited: | 13 Sep 2013 12:50 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/603 | ||||||||
| DOI: | 10.1103/PhysRevD.86.052013 |
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