Abstract: A measurement of the inclusive Z → ττ cross-section in pp collisions at s=7, TeV is presented based on a dataset of 1.0 fb -1 collected by the LHCb detector. Candidates for Z → τ τ decays are identified through reconstructed final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. The production cross-section for Z bosons, with invariant mass between 60 and 120 GeV/c 2, which decay to τ leptons with transverse momenta greater than 20 GeV/c and pseudorapidities between 2.0 and 4.5, is measured to be σ pp→Z→ττ = 71.4 ± 3.5 ± 2.8 ± 2.5 pb; the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the integrated luminosity. The ratio of the cross-sections for Z → τ τ to Z → μμ is determined to be 0.93 ± 0.09, where the uncertainty is the combination of statistical, systematic, and luminosity uncertainties of the two measurements.[Figure not available: see fulltext.] © 2013 CERN for the benefit of the LHCb collaboration.

A study of the Z production cross-section in pp collisions at s=7 TeV using tau final states / Aaij, R., Beteta, C.A., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P.A., Alves, Jr.A.A., Amato, S., Amhis, Y., Anderlini, L., Anderson, J., Appleby, R.B., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2013:1(2013), pp. N/A-N/A. [10.1007/JHEP01(2013)111]

A study of the Z production cross-section in pp collisions at s=7 TeV using tau final states

Bizzeti A.;
2013

Abstract

Abstract: A measurement of the inclusive Z → ττ cross-section in pp collisions at s=7, TeV is presented based on a dataset of 1.0 fb -1 collected by the LHCb detector. Candidates for Z → τ τ decays are identified through reconstructed final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. The production cross-section for Z bosons, with invariant mass between 60 and 120 GeV/c 2, which decay to τ leptons with transverse momenta greater than 20 GeV/c and pseudorapidities between 2.0 and 4.5, is measured to be σ pp→Z→ττ = 71.4 ± 3.5 ± 2.8 ± 2.5 pb; the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the integrated luminosity. The ratio of the cross-sections for Z → τ τ to Z → μμ is determined to be 0.93 ± 0.09, where the uncertainty is the combination of statistical, systematic, and luminosity uncertainties of the two measurements.[Figure not available: see fulltext.] © 2013 CERN for the benefit of the LHCb collaboration.
2013
2013
1
N/A
N/A
A study of the Z production cross-section in pp collisions at s=7 TeV using tau final states / Aaij, R., Beteta, C.A., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P.A., Alves, Jr.A.A., Amato, S., Amhis, Y., Anderlini, L., Anderson, J., Appleby, R.B., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2013:1(2013), pp. N/A-N/A. [10.1007/JHEP01(2013)111]
Aaij, R.; Beteta, C. A.; Adametz, A.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1209160
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