Authors

M. Derrick, Argonne National Laboratory
D. Krakauer, Argonne National Laboratory
S. Magill, Argonne National Laboratory
D. Mikunas, Argonne National Laboratory
B. Musgrave, Argonne National Laboratory
J. R. Okrasiński, Argonne National Laboratory
J. Repond, Argonne National Laboratory
R. Stanek, Argonne National Laboratory
R. L. Talaga, Argonne National Laboratory
H. Zhang, Argonne National Laboratory
Margarita C. K. Mattingly, Andrews UniversityFollow
F. Anselmo, Alma Mater Studiorum Università di Bologna
P. Antonioli, Alma Mater Studiorum Università di Bologna
G. Bari, Alma Mater Studiorum Università di Bologna
M. Basile, Alma Mater Studiorum Università di Bologna
L. Bellagamba, Alma Mater Studiorum Università di Bologna
D. Boscherini, Alma Mater Studiorum Università di Bologna
A. Bruni, Alma Mater Studiorum Università di Bologna
G. Bruni, Alma Mater Studiorum Università di Bologna
P. Bruni, Alma Mater Studiorum Università di Bologna
G. Cara Romeo, Alma Mater Studiorum Università di Bologna
G. Castellini, Alma Mater Studiorum Università di Bologna
L. Cifarelli, Alma Mater Studiorum Università di Bologna
F. Cindolo, Alma Mater Studiorum Università di Bologna
A. Contin, Alma Mater Studiorum Università di Bologna
M. Corradi, Alma Mater Studiorum Università di Bologna
I. Gialas, Alma Mater Studiorum Università di Bologna
P. Giusti, Alma Mater Studiorum Università di Bologna
G. Iacobucci, Alma Mater Studiorum Università di Bologna
G. Laurenti, Alma Mater Studiorum Università di Bologna
G. Levi, Alma Mater Studiorum Università di Bologna

Document Type

Article

Publication Date

1-1-1997

Abstract

Using the ZEUS detector at the HERA electron-proton collider, we have searched for lepton flavor violation in ep collisions at a center-of-mass energy (√s) of 300 GeV. Events of the type e + p → ℓ + X with a final-state lepton of high transverse momentum, ℓ = μ or τ, were sought. No evidence was found for lepton flavor violation in the combined 1993 and 1994 data samples, for which the integrated luminosities were 0.84 pb-1 for e-p collisions and 2.94 pb-1 for e+p collisions. Limits on coupling vs. mass are provided for leptoquarks and R-parity violating squarks. For flavor violating couplings of electromagnetic strength, we set 95% confidence level lower limits on leptoquark masses between 207 GeV and 272 GeV, depending on the leptoquark species and final-state lepton. For leptoquark masses larger than 300 GeV, limits on flavor-changing couplings are determined, many of which supersede prior limits from rare decay processes. © Springer-Verlag 1997.

Journal Title

Zeitschrift fur Physik C-Particles and Fields

Volume

73

Issue

4

First Page

613

Last Page

628

DOI

10.1007/s002880050352

First Department

Physics

Acknowledgements

Accepted version retrieved July 20, 2021 from https://arxiv.org/pdf/hep-ex/9704018.pdf

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Physics Commons

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