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Study of tau-pair production at HERA
Journal article   Open access   Peer reviewed

Study of tau-pair production at HERA

Aharon Levy, H. Abramowicz, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, V. Aushev, …
The journal of high energy physics, Vol.2011(2), 117
02/01/2011
DOI: 10.1007/JHEP02(2011)117
url
https://doi.org/10.1007/JHEP02(2011)117View
Published (Version of record) Open Access

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.
Physical Sciences Physics Physics, Particles & Fields Science & Technology

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