Study of CMS sensitivity to neutrinoless $\tau$ decay at LHC

• Published in: Nuclear Physics B - Proceedings Supplements
• Main Author: Santinelli, R.
• Language: English
• Published: 2002
• Subjects: Particle Physics - Experiment; Orca
• Online Access: https://doi.org/10.1016/S0920-5632(03)02183-2; http://cds.cern.ch/record/586507

The Large Hadron Collider (LHC), scheduled to start operation in 2006, is foreseen to provide in the first year of running a total of $\sim 10^{12}$ $\tau$ leptons. CMS (Compact Muon Solenoid) is a general-purpose experiment designed to study proton-proton and heavy-ion collisions at LHC. Even if the Susy particles and Higgs searches togheter with the B-physics present its main goal, the large amount of $\tau$-lepton, could allow a systematic study of tau-physics. We have performed a full simulation of CMS using GEANT 3 package and the object-oriented reconstruction program ORCA to study the sensitivity to neutrinoless tau decay $\tau \to \mu^+ \mu^- \mu^- $ and $\tau \to \mu \gamma$. We present the analysis developed for these channels and the results obtained. The Large Hadron Collider (LHC), scheduled to start operation in 2006, is foreseen to provide in the first year of running a total of $\sim 10^{12}$ $\tau$ leptons. CMS (Compact Muon Solenoid) is a general-purpose experiment designed to study proton-proton and heavy-ion collisions at LHC. Even if the Susy particles and Higgs searches togheter with the B-physics present its main goal, the large amount of $\tau$-lepton, could allow a systematic study of tau-physics. We have performed a full simulation of CMS using GEANT 3 package and the object-oriented reconstruction program ORCA to study the sensitivity to neutrinoless tau decay $\tau \to \mu^+ \mu^- \mu^- $ and $\tau \to \mu \gamma$. We present the analysis developed for these channels and the results obtained.