Search for Selectron and Squark Production in $e^+p$ Collisions at HERA

Details Search for Selectron and Squark Production in $e^+p$ Collisions at HERA Search for Selectron and Squark Production in $e^+p$ Collisions at HERA

1998-06-19

arxiv.org/abs/hep-ex/9806019v1

Phys.Lett.B434:214-230,1998

Physics

High Energy Physics

High Energy Physics - Experiment

22 pages including 4 figures

Scientific paper

10.1016/S0370-2693(98)00817-X

We have searched for the production of a selectron and a squark in $e^+p$ collisions at a center-of-mass energy of 300 GeV using the ZEUS detector at HERA. The selectron and squark are sought in the direct decay into the lightest neutralino in the framework of supersymmetric extensions to the Standard Model which conserve R-parity. No evidence for the production of supersymmetric particles has been found in a data sample corresponding to 46.6~pb$^{-1}$ of integrated luminosity. We express upper limits on the product of the cross section times the decay branching ratios as excluded regions in the parameter space of the Minimal Supersymmetric Standard Model.

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