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

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 sqrt(s) = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 inverse-femtobarns 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 leptoquarks and RPV top squarks to date.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-01199144
Contributor : Sylvie Flores <>
Submitted on : Tuesday, September 15, 2015 - 7:29:11 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM

### Citation

V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for pair production of first and second generation leptoquarks in proton-proton collisions at sqrt(s) = 8 TeV. Physical Review D, American Physical Society, 2016, 93, pp. 032004 ⟨10.1103/PhysRevD.93.032004⟩. ⟨in2p3-01199144⟩

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