Typ

Artikel in einem Journal

Gebiet

ATLAS

Autor

T. Nattermann, P. Wienemann, C. Zendler, K. Desch

Titel

Measuring tau-polarisation in chi20 decays at the LHC

Datum

2008-12

Reportnummer

JHEP04(2009)057

Kurzfassung

We show how the sum of the two average tau polarisations in the decay chain tilde chi02 → tilde tau1τ → ττtilde chi01 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