期刊
NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS
卷 273, 期 -, 页码 638-643出版社
ELSEVIER
DOI: 10.1016/j.nuclphysbps.2015.09.096
关键词
Exotica; ATLAS and CMS collaborations; LHC
资金
- Direct For Mathematical & Physical Scien
- Division Of Physics [1410972] Funding Source: National Science Foundation
The most recent results from searches of leptoquark-like signatures are presented using 1.03 and 4.7 fb(-1) of pp collision data collected by the ATLAS detector with root s = 7 TeV and 19.6 fb(-1) of pp collision data collected by the CMS detector with root s = 8 TeV at the LHC. First- and second-generation scalar leptoquarks are looked for in the final states with either two leptons and two jets (ll + jj, l = e, mu) or one lepton, missing transverse energy, and two jets (l nu + jj, l = e, mu). Apart from leptoquark investigations, the ll + jj final states are further studied in a search for W bosons with right-handed couplings that arise in left-right models. Third-generation scalar leptoquarks are looked for in the final state with two tau leptons and two b quarks or two top quarks (tau tau + bb and tau tau + tt). The tau tau + bb final state is also sensitive to stop pairs decaying through R-parity violating and conserving processes that are foreseen in some models of supersymmetry. In addition, results are shown for third-generation scalar leptoquarks in the final states bb + nu nu and tt + nu nu, reinterpreting searches for bottom and top squark pair production. 95% confidence level upper limits are set on the scalar leptoquark pair production cross section times branching fraction in each decay channel as a function of the leptoquark mass and the branching ratio of decay.
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