A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb -1. Events with an isolated electron or muon and a τ lepton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, σtt-=186±13(stat.)±20(syst.)±7(lumi.) pb, is in good agreement with the Standard Model prediction. © 2012 CERN.

Measurement of the top quark pair cross section with ATLAS in pp collisions at s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton / Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdelalim, A.A., Abdinov, O., Abi, B., Abolins, M., Abouzeid, O.S., Abramowicz, H., Abreu, H., Acerbi, E., Acharya, B.S., Adamczyk, L., Adams, D.L., Addy, T.N., Adelman, J., Adomeit, S., Adragna, P., Adye, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 717:1-3(2012), pp. 89-108. [10.1016/j.physletb.2012.09.032]

Measurement of the top quark pair cross section with ATLAS in pp collisions at s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton

G. Artoni;BAGNAIA, Paolo;BINI, Cesare;DE CECCO, Sandro;DIONISI, Carlo;GAUZZI, Paolo;GENTILE, Simonetta;GIAGU, Stefano;M. Kado;LACAVA, Francesco;LUCI, Claudio;MESSINA, Andrea;MONZANI, SIMONE;A. Policicchio;SOLFAROLI CAMILLOCCI, ELENA;VANADIA, MARCO;VERDUCCI, MONICA;
2012

Abstract

A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb -1. Events with an isolated electron or muon and a τ lepton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, σtt-=186±13(stat.)±20(syst.)±7(lumi.) pb, is in good agreement with the Standard Model prediction. © 2012 CERN.
2012
top quark physics; lepton+τ; cross section
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the top quark pair cross section with ATLAS in pp collisions at s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton / Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdelalim, A.A., Abdinov, O., Abi, B., Abolins, M., Abouzeid, O.S., Abramowicz, H., Abreu, H., Acerbi, E., Acharya, B.S., Adamczyk, L., Adams, D.L., Addy, T.N., Adelman, J., Adomeit, S., Adragna, P., Adye, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 717:1-3(2012), pp. 89-108. [10.1016/j.physletb.2012.09.032]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/488644
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