Study of tau-pair Production at HERA

Authors

• Aharon Levy, Tel Aviv University
• H. Abramowicz, Tel Aviv University
• L. Adamczyk, AGH University of Science and Technology
• M. Adamus, Institute of Nuclear Chemistry and Technology, Warsaw
• R. Aggarwal, Panjab University
• S. Antonelli, Alma Mater Studiorum Università di Bologna
• P. Antonioli, Alma Mater Studiorum Università di Bologna
• A. Antonov, National Research Nuclear University MEPhI
• M. Arneodo, Università degli Studi del Piemonte Orientale "Amedeo Avogadro"
• V. Aushev, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• Y. Aushev, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• O. Bachynska, Deutsches Elektronen-Synchrotron (DESY)
• A. Bamberger, Universität Freiburg im Breisgau
• A. N. Barakbaev, Ministry of Education and Science of the Republic of Kazakhstan
• G. Barbagli, Università degli Studi di Firenze
• G. Bari, Alma Mater Studiorum Università di Bologna
• F. Barreiro, Universidad Autónoma de Madrid
• N. Bartosik, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• D. Bartsch, Universität Bonn
• M. Basile, Alma Mater Studiorum Università di Bologna
• O. Behnke, Deutsches Elektronen-Synchrotron (DESY)
• J. Behr, Deutsches Elektronen-Synchrotron (DESY)
• U. Behrens, Deutsches Elektronen-Synchrotron (DESY)
• L. Bellagamba, Alma Mater Studiorum Università di BolognaFollow
• A. Bertolin, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
• S. Bhadra, York University
• M. Bindi, Alma Mater Studiorum Università di Bologna
• C. Blohm, Deutsches Elektronen-Synchrotron (DESY)
• V. Bokhonov, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• T. Bold, AGH University of Science and Technology
• O. Bolilyi, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• Margarita C. K. Mattingly, Andrews UniversityFollow

Document Type

Article

Publication Date

10-4-2011

Keywords

Lepton-nucleon scattering

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.

Journal Title

Journal of High Energy Physics

Volume

2011

Issue

2

DOI

https://doi.org/10.1007/JHEP02(2011)117

First Department

Physics

Recommended Citation

Levy, Aharon; Abramowicz, H.; Adamczyk, L.; Adamus, M.; Aggarwal, R.; Antonelli, S.; Antonioli, P.; Antonov, A.; Arneodo, M.; Aushev, V.; Aushev, Y.; Bachynska, O.; Bamberger, A.; Barakbaev, A. N.; Barbagli, G.; Bari, G.; Barreiro, F.; Bartosik, N.; Bartsch, D.; Basile, M.; Behnke, O.; Behr, J.; Behrens, U.; Bellagamba, L.; Bertolin, A.; Bhadra, S.; Bindi, M.; Blohm, C.; Bokhonov, V.; Bold, T.; Bolilyi, O.; and Mattingly, Margarita C. K., "Study of tau-pair Production at HERA" (2011). Faculty Publications. 1694.
https://digitalcommons.andrews.edu/pubs/1694