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Physics 1999
Study of the determination of the SUGRA parameters using the ATLAS detector in the case of L-violating R parity breakingAbstract: Simulating pp collisions at LHC energies in the framework of the SUGRA model and the detection of the produced leptons and jets by ATLAS we demonstrate that a clean signature of SUSY can be obtained over a large domain of the parameter space in the case of L-violating R parity breaking ($\lambda$ couplings). The obtained signal allows the reconstruction of the SUSY particles and thereby the precise determination of the model parameters $m_0, m_{1/2}, tan\beta$ and sign $\mu$.
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