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

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 prom...

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Bibliographic Details
Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format: Article
Language:English
English
English
Published: American Physical Society 2019
Subjects:
Online Access:http://irep.iium.edu.my/71695/
http://irep.iium.edu.my/71695/
http://irep.iium.edu.my/71695/
http://irep.iium.edu.my/71695/1/71695_Search%20for%20pair%20production%20of%20first-generation%20scalar_article.pdf
http://irep.iium.edu.my/71695/2/71695_Search%20for%20pair%20production%20of%20first-generation%20scalar_wos.pdf
http://irep.iium.edu.my/71695/13/71695_Search%20for%20pair%20production%20of%20first-generation%20scalar_scopus.pdf
Description
Summary: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 ¼ 1.0ð0.5Þ. 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.