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A search for leptoquarks at HERA |
| Reference |
Final paper expected for SUmmer 2005, Summer 2005 |
| Figures |
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| Contact |
S Schmitt, Z Zhang |
| Abstract |
A search for scalar and vector leptoquarks coupling to
first generation fermions is performed
using the e^+p and e^-p scattering data collected by the H1 experiment
between 1994 and 2000.
The data correspond to a total integrated luminosity of more than
100 pb^{-1}.
No evidence for the direct or indirect production of such
particles is found in data samples with a large transverse
momentum final state electron or with large missing transverse
momentum.
Constraints on leptoquark models are established. For
leptoquark couplings of electromagnetic strength,
leptoquarks with masses up to 325 GeV are ruled out.
The new limits improve and supercede earlier limits based on
subsamples of the data used here.
The exclusion limits also apply to squarks predicted by
supersymmetry scenarios with $R$-parity violation. |
| Links |
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