Measurement of σ(pp̅ →Z)·Br(Z→TT) at √s=1.96 TeV

Abazov, V. M. ; Mondal, N. K. ; et., al (2005) Measurement of σ(pp̅ →Z)·Br(Z→TT) at √s=1.96 TeV Physical Review D - Particles, Fields, Gravitation and Cosmology, 71 (7). 072004_1-072004_7. ISSN 1550-7998

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We present a measurement of the cross section for Z production times the branching fraction to t leptons, σ·Br(Z→t+t-), in pp¯ collisions at √s=1.96 TeV in the channel in which one τ decays into μνμντ, and the other into hadrons+ντ or eνeνt. The data sample corresponds to an integrated luminosity of 226 pb-1 collected with the D∅ detector at the Fermilab Tevatron collider. The final sample contains 2008 candidate events with an estimated background of 55%. From this we obtain σ·Br(Z→τ+τ-)=237±15(stat)±18(sys)±15(lum)pb, in agreement with the standard model prediction.

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ID Code:88261
Deposited On:27 Mar 2012 11:43
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