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Search for direct top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in √s=7TeV pp collisions using 4.7fb-1 of ATLAS data

  • Author(s): Aad, G
  • Abajyan, T
  • Abbott, B
  • Abdallah, J
  • Abdel Khalek, S
  • Abdelalim, AA
  • Abdinov, O
  • Aben, R
  • Abi, B
  • Abolins, M
  • Abouzeid, OS
  • Abramowicz, H
  • Abreu, H
  • Acharya, BS
  • Adamczyk, L
  • Adams, DL
  • Addy, TN
  • Adelman, J
  • Adomeit, S
  • Adragna, P
  • Adye, T
  • Aefsky, S
  • Aguilar-Saavedra, JA
  • Agustoni, M
  • Aharrouche, M
  • Ahlen, SP
  • Ahles, F
  • Ahmad, A
  • Ahsan, M
  • Aielli, G
  • Akdogan, T
  • Akesson, TPA
  • Akimoto, G
  • Akimov, AV
  • Alam, MS
  • Alam, MA
  • Albert, J
  • Albrand, S
  • Aleksa, M
  • Aleksandrov, IN
  • Alessandria, F
  • Alexa, C
  • Alexander, G
  • Alexandre, G
  • Alexopoulos, T
  • Alhroob, M
  • Aliev, M
  • Alimonti, G
  • Alison, J
  • Allbrooke, BMM
  • Allport, PP
  • Allwood-Spiers, SE
  • Almond, J
  • Aloisio, A
  • Alon, R
  • Alonso, A
  • Alonso, F
  • Altheimer, AD
  • Alvarez Gonzalez, B
  • Alviggi, MG
  • Amako, K
  • Amelung, C
  • Ammosov, VV
  • Amorim, A
  • Amram, N
  • Anastopoulos, C
  • Ancu, LS
  • Andari, N
  • Andeen, T
  • Anders, CF
  • Anders, G
  • Anderson, KJ
  • Andreazza, A
  • Andrei, V
  • Anduaga, XS
  • Anger, P
  • Angerami, A
  • Anghinolfi, F
  • Anisenkov, A
  • Anjos, N
  • Annovi, A
  • Antonaki, A
  • Antonelli, M
  • Antonov, A
  • Antos, J
  • Anulli, F
  • Aoki, M
  • Aoun, S
  • Aperio Bella, L
  • et al.
Abstract

A search is presented for direct top squark pair production in final states with one isolated electron or muon, jets, and missing transverse momentum in proton-proton collisions at √s=7TeV. The measurement is based on 4.7fb-1 of data collected with the ATLAS detector at the LHC. Each top squark is assumed to decay to a top quark and the lightest supersymmetric particle (LSP). The data are found to be consistent with standard model expectations. Top squark masses between 230GeV and 440GeV are excluded with 95% confidence for massless LSPs, and top squark masses around 400GeV are excluded for LSP masses up to 125GeV. © 2012 CERN.

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