Physics beyond the standard model at hera Cornet Sánchez del Águila, Fernando Rico, Javier Supersymmetric standard model HERA This talk is divided in two parts. In the first one we discuss the signals of the Minimal Supersymmetric Standard Model through the production of eq. The second part is devoted to contact terms. The bounds on the mass scale A obtained from atomic parity violation experiments and from LEP are reviewed. Afterwards, we show that the excess of events at high Q-2 observed at HERA could be explained in terms of these contact terms. 2013-11-07T07:53:20Z 2013-11-07T07:53:20Z 1997-11 conference output Cornet, F.; Rico, J. Physics beyond the standard model at hera. In: XXI International School on Theoretical Physics, Ustron (Poland), september 1997. [http://hdl.handle.net/10481/29057] arXiv:hep-ph/9712275v1 http://hdl.handle.net/10481/29057 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License