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"
O. Arslan, Universität Bonn
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, Deutsches Elektronen-Synchrotron (DESY)
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 Bologna
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
Margarita C. K. Mattingly, Andrews UniversityFollow

Document Type

Article

Publication Date

7-18-2012

Abstract

A search for first-generation leptoquarks was performed in electron-proton and positron-proton collisions recorded with the ZEUS detector at HERA in 2003-2007 using an integrated luminosity of 366pb-1. Final states with an electron and jets or with missing transverse momentum and jets were analyzed, searching for resonances or other deviations from the standard model predictions. No evidence for any leptoquark signal was found. The data were combined with data previously taken at HERA, resulting in a total integrated luminosity of 498pb-1. Limits on the Yukawa coupling, λ, of leptoquarks were set as a function of the leptoquark mass for different leptoquark types within the Buchmüller-Rückl-Wyler model. Leptoquarks with a coupling λ=0.3 are excluded for masses up to 699 GeV. © 2012 American Physical Society.

Journal Title

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume

86

Issue

1

DOI

10.1103/PhysRevD.86.012005

First Department

Physics

Acknowledgements

Retrieved January 29, 2021 from https://arxiv.org/pdf/1205.5179.pdf

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Physics Commons

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