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

We report a search for first generation scalar leptoquarks using 1.03fb-1 of proton-proton collisions data produced by the Large Hadron Collider at s=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...

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Main Authors: Aad, G, Abbott, B, Abdallah, J, Abdelalim, A, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, AbouZeid, O, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, B, Adamczyk, L, Adams, D, Addy, T, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, Aguilar-Saavedra, J
Format: Journal article
Published: 2012
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author Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Acerbi, E
Acerbi, E
Acharya, B
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
author_facet Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Acerbi, E
Acerbi, E
Acharya, B
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
author_sort Aad, G
collection OXFORD
description We report a search for first generation scalar leptoquarks using 1.03fb-1 of proton-proton collisions data produced by the Large Hadron Collider at s=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 mLQ<660(607) GeV when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5). © 2012 CERN.
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spelling oxford-uuid:b35fffe9-74ba-4a8b-bebb-2b39bd84e2a42022-03-27T04:18:33ZSearch for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b35fffe9-74ba-4a8b-bebb-2b39bd84e2a4Symplectic Elements at Oxford2012Aad, GAbbott, BAbdallah, JAbdelalim, AAbdesselam, AAbdinov, OAbi, BAbolins, MAbouZeid, OAbramowicz, HAbreu, HAcerbi, EAcerbi, EAcharya, BAcharya, BAdamczyk, LAdams, DAddy, TAdelman, JAderholz, MAdomeit, SAdragna, PAdye, TAefsky, SAguilar-Saavedra, JWe report a search for first generation scalar leptoquarks using 1.03fb-1 of proton-proton collisions data produced by the Large Hadron Collider at s=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 mLQ<660(607) GeV when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5). © 2012 CERN.
spellingShingle Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Acerbi, E
Acerbi, E
Acharya, B
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title_full Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title_fullStr Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title_full_unstemmed Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title_short Search for first generation scalar leptoquarks in pp collisions at s=7 TeV with the ATLAS detector
title_sort search for first generation scalar leptoquarks in pp collisions at s 7 tev with the atlas detector
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