Search for pair production of first-generation scalar leptoquarks at s =13 TeV

(CMS Collaboration)

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A search for the pair production of first-generation scalar leptoquarks is performed using proton-proton collision data recorded at 13 TeV center-of-mass energy with the CMS detector at the LHC. The data correspond to an integrated luminosity of 35.9 fb-1. The leptoquarks are assumed to decay promptly to a quark and either an electron or a neutrino, with branching fractions β and 1-β, respectively. The search targets the decay final states comprising two electrons, or one electron and large missing transverse momentum, along with two quarks that are detected as hadronic jets. First-generation scalar leptoquarks with masses below 1435 (1270) GeV are excluded for β=1.0(0.5). These are the most stringent limits on the mass of first-generation scalar leptoquarks to date. The data are also interpreted to set exclusion limits in the context of an R-parity violating supersymmetric model, predicting promptly decaying top squarks with a similar dielectron final state.

Original languageEnglish
Article number052001
JournalPhysical Review D
Volume99
Issue number5
DOIs
Publication statusPublished - 2019 Mar 1

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pair production
scalars
quarks
electrons
protons
decay
exclusion
transverse momentum
center of mass
parity
neutrinos
luminosity
collisions
detectors
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Search for pair production of first-generation scalar leptoquarks at s =13 TeV. / (CMS Collaboration).

In: Physical Review D, Vol. 99, No. 5, 052001, 01.03.2019.

Research output: Contribution to journalArticle

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abstract = "A search for the pair production of first-generation scalar leptoquarks is performed using proton-proton collision data recorded at 13 TeV center-of-mass energy with the CMS detector at the LHC. The data correspond to an integrated luminosity of 35.9 fb-1. The leptoquarks are assumed to decay promptly to a quark and either an electron or a neutrino, with branching fractions β and 1-β, respectively. The search targets the decay final states comprising two electrons, or one electron and large missing transverse momentum, along with two quarks that are detected as hadronic jets. First-generation scalar leptoquarks with masses below 1435 (1270) GeV are excluded for β=1.0(0.5). These are the most stringent limits on the mass of first-generation scalar leptoquarks to date. The data are also interpreted to set exclusion limits in the context of an R-parity violating supersymmetric model, predicting promptly decaying top squarks with a similar dielectron final state.",
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