Abstract
We propose a possible scenario in the framework of the MSSM with R-parity breaking interactions of the scalar tops (stops) and the scalar bottoms (sbottoms) to interpret the anomalous events with the high Q 2 recently observed at HERA. In our model, two stops are almost degenerate in mass and decay into (sbottom + W-boson) as well as (positron + d-quark). In this scenario the broad mass distribution in the neutral current (NC) DIS with the high Q 2 observed at HERA could be naturally explained. We show, moreover, that an event excess in the charged current (CC) DIS could be expected if we consider some appropriate decay chains to the stops. Expected event distributions are shown to be consistent with the CC data recently obtained by the H1 and ZEUS groups at HERA. In the present scenario, the existence of a light sbottom with mass smaller than 120GeV is essential. Possibilities of searching for such a sbottom at LEP2 are also discussed.
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