A measurement of the top-quark pair-production cross section in p (p) over bar collisions at root s = 1.96 TeV using data corresponding to an integrated luminosity of 1.12 fb(-1) collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states e nu + jets and mu nu+ jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified b quarks from the top-quark decays. Assuming a top-quark mass of 175 GeV/c(2), a cross section of (8.5 +/- 0.6(stat) +/- 0.7(syst))pb is measured.

T., A., B., Á.G., S., A., D., A., A., A., A., A., et al. (2011). Measurement of the t(t)over-bar production cross section with an in situ calibration of b-jet identification efficiency. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(7), 071102-1-071102-8 [10.1103/PhysRevD.83.071102].

Measurement of the t(t)over-bar production cross section with an in situ calibration of b-jet identification efficiency.

BARRIA, PATRIZIA;GAROSI, PAOLA;RUFFINI, FABRIZIO;SCRIBANO, ANGELO;SQUILLACIOTI, PAOLA;TURINI, NICOLA;
2011-01-01

Abstract

A measurement of the top-quark pair-production cross section in p (p) over bar collisions at root s = 1.96 TeV using data corresponding to an integrated luminosity of 1.12 fb(-1) collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states e nu + jets and mu nu+ jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified b quarks from the top-quark decays. Assuming a top-quark mass of 175 GeV/c(2), a cross section of (8.5 +/- 0.6(stat) +/- 0.7(syst))pb is measured.
2011
T., A., B., Á.G., S., A., D., A., A., A., A., A., et al. (2011). Measurement of the t(t)over-bar production cross section with an in situ calibration of b-jet identification efficiency. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(7), 071102-1-071102-8 [10.1103/PhysRevD.83.071102].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/21166
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