A New SUSY mass reconstruction method at the CERN LHC

Details A New SUSY mass reconstruction method at the CERN LHC A New SUSY mass reconstruction method at the CERN LHC

2004-10-12

arxiv.org/abs/hep-ph/0410160v1

Phys.Rev.D71:035008,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex 16 pages, 8 figures

Scientific paper

10.1103/PhysRevD.71.035008

We propose a new mass reconstruction technique for SUSY processes at the LHC. The idea is to completely solve the kinematics of the SUSY cascade decay by using the assumption that the selected events satisfy the same mass shell conditions of the sparticles involved in the cascade decay. Using this technique, we study the measurement of the mass of the bottom squarks in the cascade decay of the gluino. Based on the final state including two high p_T leptons and two b-jets, we investigate different possible approaches to the mass reconstruction of the gluino and the two bottom squarks. In particular we evaluate the performance of different algorithms in discriminating two bottom squark states with a mass difference as low as 5%.

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