The top-antitop quark (t (t) over bar) production cross section is measured in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb(-1). The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 +/- 2 (stat.) +/- 11 (syst.) +/- 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.

Measurement of the t(t)over-bar production cross section in the dilepton channel in pp collisions at root s=8 TeV / S., C., V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., C., H., N., H., J., H., M., J., W., K., V., K., M., K., I., K., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - (2014), p. 024. [10.1007/jhep02(2014)024]

Measurement of the t(t)over-bar production cross section in the dilepton channel in pp collisions at root s=8 TeV

BARONE, Luciano Maria;DEL RE, Daniele;LONGO, Egidio;MARGAROLI, Fabrizio;MICHELI, FRANCESCO;ORGANTINI, Giovanni;PARAMATTI, Riccardo;RAHATLOU, SHAHRAM;SOFFI, LIVIA;TRACZYK, PIOTR WOJCIECH;SANTANASTASIO, FRANCESCO;
2014

Abstract

The top-antitop quark (t (t) over bar) production cross section is measured in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb(-1). The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 +/- 2 (stat.) +/- 11 (syst.) +/- 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.
2014
top physics; hadron-hadron scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the t(t)over-bar production cross section in the dilepton channel in pp collisions at root s=8 TeV / S., C., V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., C., H., N., H., J., H., M., J., W., K., V., K., M., K., I., K., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - (2014), p. 024. [10.1007/jhep02(2014)024]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/631219
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