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Search for first generation scalar leptoquarks in pp collisions at vs = 7 TeV with the ATLAS detector

journal contribution
posted on 2023-06-08, 17:56 authored by Iacopo Vivarelli, Alessandro CerriAlessandro Cerri, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, Umberto De Sanctis, Kerim Suruliz, Tina Potter, Carlos Chavez Barajas, Mark SuttonMark Sutton, ATLAS Colaboration
We report a search for first generation scalar leptoquarks using 1.03 fb-1 of proton–proton collisions data produced by the Large Hadron Collider at vs = 7 TeV and recorded by the ATLAS experiment. Leptoquarks are sought via their decay into an electron or neutrino and a quark, producing events with two oppositely charged electrons and at least two jets, or events with an electron, missing transverse momentum and at least two jets. Control data samples are used to validate background predictions from Monte Carlo simulation. In the signal region, the observed event yields are consistent with the background expectations. We exclude at 95% confidence level the production of first generation scalar leptoquark with masses mL Q < 660 (607) GeV when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5). © 2012 CERN. Published by Elsevier B.V. All rights reserved.

History

Publication status

  • Published

File Version

  • Published version

Journal

Physics Letters B

ISSN

0370-2693

Publisher

Elsevier

Issue

3

Volume

709

Page range

158-176

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2014-07-28

First Compliant Deposit (FCD) Date

2014-07-26

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