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The explanation of a 200 GeV R-parity violating squark to the DESY HERA high-Q2 anomaly would have an important impact on supersymmetry-breaking models. Here we show that a squark of mass around 200 GeV is disallowed in the minimal gauge-mediated SUSY-breaking models in the parameter space constrained by the radiative electroweak-symmetry breaking and the experimental lower limits on supersymmetric particles, even after including the large R-parity violating couplings. Supergravity-motivated models can, on the other hand, give rise to these scalar quarks in a wide range of parameter space. 1998 The American Physical Society.
author list (cited authors)
Cheung, K., Dicus, D. A., & Dutta, B.