An additional study of multi-muon events produced in pp¯ collisions at s=1.96 TeV

Abstract : We present one additional study of multi-muon events produced at the Fermilab Tevatron collider and recorded by the CDF II detector. We use a data set acquired with a dedicated dimuon trigger and corresponding to an integrated luminosity of 3.9 fb-1. We investigate the distribution of the azimuthal angle between the two trigger muons in events containing at least four additional muon candidates to test the compatibility of these events with originating from known QCD processes. We find that this distribution is markedly different from what is expected from such QCD processes and this observation strongly disfavors the possibility that multi-muon events result from an underestimate of the rate of misidentified muons in ordinary QCD events.
Type de document :
Article dans une revue
Physics Letters B, Elsevier, 2012, 710, pp.278-283. <10.1016/J.PHYSLETB.2012.02.081>
Domaine :

http://hal.in2p3.fr/in2p3-00648261
Contributeur : Swarna Bassava <>
Soumis le : lundi 5 décembre 2011 - 14:29:51
Dernière modification le : mardi 11 octobre 2016 - 13:26:21

Citation

T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, et al.. An additional study of multi-muon events produced in pp¯ collisions at s=1.96 TeV. Physics Letters B, Elsevier, 2012, 710, pp.278-283. <10.1016/J.PHYSLETB.2012.02.081>. <in2p3-00648261>

Métriques

Consultations de la notice