Measurement of sigma(p[overline p]-->Z)·Br(Z-->tautau) at sqrt(s)=1.96 TeV

DO Collaboration, The and Bertram, Iain A. and Borissov, Guennadi V. and Ratoff, Peter N. and Sopczak, Andre (2005) Measurement of sigma(p[overline p]-->Z)·Br(Z-->tautau) at sqrt(s)=1.96 TeV. Physical Review D, 71 (7). 072004. ISSN 1550-7998

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We present a measurement of the cross section for Z production times the branching fraction to tau leptons, sigma·Br(Z-->tau+tau-), in p[overline p] collisions at sqrt(s)=1.96 TeV in the channel in which one tau decays into µnuµnutau, and the other into hadrons+nutau or enuenutau. The data sample corresponds to an integrated luminosity of 226 pb-1 collected with the D0 detector at the Fermilab Tevatron collider. The final sample contains 2008 candidate events with an estimated background of 55%. From this we obtain sigma·Br(Z-->tau+tau-)=237±15(stat)±18(sys)±15(lum)pb, in agreement with the standard model prediction.

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Journal Article
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Physical Review D
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08 Oct 2016 00:06
Last Modified:
19 Sep 2023 23:49