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(-1). 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.

Study of tau-pair production at HERA / H., A., I., A., L., A., M., A., R., A., S., A., P., A., A., A., M., A., V., A., Y., A., O., B., A., B., A. n., B., G., B., G., B., F., B., D., B., M., B., O., B., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - STAMPA. - 2011:2(2011), p. 117. [10.1007/jhep02(2011)117]

Study of tau-pair production at HERA

D'AGOSTINI, Giulio;NIGRO, Andrea;
2011

Abstract

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(-1). 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.
2011
lepton-nucleon scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Study of tau-pair production at HERA / H., A., I., A., L., A., M., A., R., A., S., A., P., A., A., A., M., A., V., A., Y., A., O., B., A., B., A. n., B., G., B., G., B., F., B., D., B., M., B., O., B., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - STAMPA. - 2011:2(2011), p. 117. [10.1007/jhep02(2011)117]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/389300
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