Typ
Artikel in einem Journal
Gebiet
ATLAS
Autor
T. Nattermann, K. Desch, P. Wienemann, C. Zendler
Titel
Measuring tau-polarisation in Neutralino2 decays at the LHC
Datum
2009-04
Reportnummer
J. High Energy Phys. 04 (2009) 057; ATL-COM-PHYS-2008-242
Kurzfassung
We show how the sum of the two average tau polarisations in the decay chain chi20 -> stau1 tau -> tau tau chi10 in minimal supersymmetry with conserved R-parity can be measured at the LHC. This is accomplished by exploiting the polarisation dependence of the visible di-tau mass spectrum. Such a measurement provides information on the couplings of the involved SUSY particles and allows a more precise determination of the di-tau mass endpoint. If different tau decay modes can be distinguished, the polarisation and endpoint measurement can be improved even further.
Journal
doi:10.1088/1126-6708/2009/04/057