Search for Single-top Production in ep Collisions at HERA

Authors

• H. Abramowicz, Tel Aviv University
• I. Abt, Max Planck Institute for Physics (Werner Heisenberg Institute)
• L. Adamczyk, AGH University of Science and Technology
• M. Adamus, National Centre for Nuclear Research (NCBJ)
• R. Aggarwal, Panjab University
• S. Antonelli, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
• P. Antonioli, Istituto Nazionale di Fisica Nucleare, Sezione 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, Taras Shevchenko National University of Kyiv
• 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, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
• G. Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
• F. Barreiro, Universidad Autónoma de Madrid
• N. Bartosik, Taras Shevchenko National University of Kyiv
• D. Bartsch, Universität Bonn
• M. Basile, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
• O. Behnke, Deutsches Elektronen-Synchrotron (DESY)
• J. Behr, Deutsches Elektronen-Synchrotron (DESY)
• U. Behrens, Deutsches Elektronen-Synchrotron (DESY)
• L. Bellagamba, Istituto Nazionale di Fisica Nucleare, Sezione di BolognaFollow
• A. Bertolin, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
• S. Bhadra, York University
• M. Bindi, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
• C. Blohm, Deutsches Elektronen-Synchrotron (DESY)
• V. Bokhonov, Institute of Nuclear Research, National Academy of Sciences in Ukraine
• T. Bołd, AGH University of Science and Technology
• K. Bondarenko, Taras Shevchenko National University of Kyiv
• Margarita C. K. Mattingly, Andrews UniversityFollow

Document Type

Article

Publication Date

2-14-2012

Abstract

A search for single-top production, ep→etX, has been performed with the ZEUS detector at HERA using data corresponding to an integrated luminosity of 0.37 fb -1. No evidence for top production was found, consistent with the expectation from the Standard Model. Limits were computed for single-top production via flavour changing neutral current transitions involving a neutral electroweak vector boson, γ or Z. The result was combined with a previous ZEUS result yielding a total luminosity of 0.50 fb -1. A 95% credibility level upper limit of 0.13 pb was obtained for the cross section at the centre-of-mass energy of √s=315 GeV. © 2012 Elsevier B.V.

Journal Title

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

708

Issue

1-2

First Page

27

Last Page

36

DOI

https://doi.org/10.1016/j.physletb.2012.01.025

First Department

Physics

Recommended Citation

Abramowicz, H.; Abt, I.; 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.; Bołd, T.; Bondarenko, K.; and Mattingly, Margarita C. K., "Search for Single-top Production in ep Collisions at HERA" (2012). Faculty Publications. 1652.
https://digitalcommons.andrews.edu/pubs/1652

Acknowledgements

Retrieved January 28, 2021 from https://www.sciencedirect.com/science/article/pii/S037026931200038X