A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb(-1) of data at a centre-of-mass energy of 7TeV. In units of the elementary electric charge, the top quark charge is determined to be 0.64 +/- 0.02 (stat.) +/- 0.08 (syst.) from the charges of the top quark decay products in single lepton t (t) over bar candidate events. This excludes models that propose a heavy quark of electric charge -4/3, instead of the Standard Model top quark, with a significance of more than 8 sigma.

Measurement of the top quark charge in pp collisions at root s=7 TeV with the ATLAS detector / G., A., T., A., B., A., J., A., S. A., K., A. A., A., O., A., R., A., B., A., M., A., O. S., A., H., A., H., A., Y., A., B. S., A., L., A., D. L., A., T. N., A., J., A., S., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - (2013), p. 031. [10.1007/jhep11(2013)031]

Measurement of the top quark charge in pp collisions at root s=7 TeV with the ATLAS detector

BAGNAIA, Paolo;BINI, Cesare;GAUZZI, Paolo;GENTILE, Simonetta;GIAGU, Stefano;LACAVA, Francesco;LUCI, Claudio;MESSINA, Andrea;MONZANI, SIMONE;SOLFAROLI CAMILLOCCI, ELENA;VERDUCCI, MONICA;
2013

Abstract

A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb(-1) of data at a centre-of-mass energy of 7TeV. In units of the elementary electric charge, the top quark charge is determined to be 0.64 +/- 0.02 (stat.) +/- 0.08 (syst.) from the charges of the top quark decay products in single lepton t (t) over bar candidate events. This excludes models that propose a heavy quark of electric charge -4/3, instead of the Standard Model top quark, with a significance of more than 8 sigma.
2013
top physics; hadron-hadron scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the top quark charge in pp collisions at root s=7 TeV with the ATLAS detector / G., A., T., A., B., A., J., A., S. A., K., A. A., A., O., A., R., A., B., A., M., A., O. S., A., H., A., H., A., Y., A., B. S., A., L., A., D. L., A., T. N., A., J., A., S., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - (2013), p. 031. [10.1007/jhep11(2013)031]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/555803
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