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Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at s=7 TeV
ATLAS Collaboration,Aad, G.,Abbott, B.,Abdallah, J.,Abdelalim, A.A.,Abdesselam, A.,Abdinov, O.,Abi, B.,Abolins, M.,Abramowicz, H.,Abreu, H.,Acerbi, E.,Acharya, B.S.,Adams, D.L.,Addy, T.N.,Adelman, J. North-Holland Pub. Co 2011 Physics letters: B Vol.703 No.4
A search for long-lived charged particles reaching the muon spectrometer is performed using a data sample of 37 pb<SUP>-1</SUP> from pp collisions at s=7 TeV collected by the ATLAS detector at the LHC in 2010. No excess is observed above the estimated background. Stable τ@? sleptons are excluded at 95% CL up to a mass of 136 GeV, in GMSB models with N<SUB>5</SUB>=3, m<SUB>messenger</SUB>=250 TeV, sign(μ)=1 and tanβ=5. Electroweak production of sleptons is excluded up to a mass of 110 GeV. Gluino R-hadrons in a generic interaction model are excluded up to masses of 530 GeV to 544 GeV depending on the fraction of R-hadrons produced as g@?-balls.