2 research outputs found

    Measurement of the weak mixing angle using the forward–backward asymmetry of Drell-Yan events in p p collisions at 8 TeV

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    Study of tau-Pair Production at HERA

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    A study of events containing two tau leptons with high transverse momentum has been performed with the ZEUS detector at HERA, using a data sample corresponding to an integrated luminosity of 0.33 fb<sup>−1</sup>. The tau candidates were identified from their decays into electrons, muons or hadronic jets. The number of tau-pair candidates has been compared with the prediction from the Standard Model, where the largest contribution is expected from Bethe-Heitler processes. The total visible cross section was extracted. Standard Model expectations agree well with the measured distributions, also at high invariant mass of the tau pair
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