Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-12-03
PoS ICHEP2010:341,2010
Physics
High Energy Physics
High Energy Physics - Experiment
4 pages, 4 figures, Proceedings of 35th International Conference of High Energy Physics (ICHEP 2010), Paris, France, July 22-2
Scientific paper
Various strange and charmed hadrons were reconstructed with the ATLAS detector in pp collisions at sqrt{s}=7 TeV. The data sample was collected in March-May of 2010 using a minimum-bias trigger. The K^0_S and Lambda^0 kinematic distributions were studied using data corresponding to an integrated luminosity of 190 mub^{-1}. The Xi-+ and Omega-+ baryons were reconstructed in their cascade decays in data corresponding to an integrated luminosity of 250 mub^{-1}. The D*+-, D+- and D_s+- charmed mesons were reconstructed in the range of transverse momentum pT(D^(*))>3.5 GeV and pseudorapidity |eta(D^(*))|<2.1 in data corresponding to an integrated luminosity of 1.4 nb^{-1}. The fitted mass values were found to be in agreement with their world averages while the observed invariant mass resolutions agree with Monte Carlo expectations. This study confirms the high performance of the ATLAS detector for precision tracking measurements.
for the ATLAS Collaboration
Gladilin Leonid
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