Searching for evidence of Split-SUSY at Auger (update)

P. HANSEN; S. J. SCIUTTO; J. ALVAREZ-MUÑIZ; T. PAUL; L. A. ANCHORDOQUI

Malargüe

Encuentro; Auger Collaboration Meeting; 2011

Split SUSY Is a new variant of SUSY which may facilitate the required fine tuning and simultaneously preserves the achievements of the MSSM (Minimal Supersymmetric Standard Model). In this model the bosonic superpartners are heavy, while the extra fermions retain TeV-scale masses thanks to protection by chiral symmetry. The experimental signature is the long-lived gluinos when confined with quark, anti-quark or gluons give rise to the so called R-hadrons (carrying 1 unity of R-parity). The R-Hadrons-air interaction is characterized by a very low inelasticity: The leading particle retains most of its energy all the way to ground; secondary particle cascade to low energies. As a result an ensemble of mini-showers strung along the trajectory of the leading particle. The possibility of detecting such signature with the Auger Observatory is discussed.