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Measuring tau-polarisation in neutralino2 decays at the LHC
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 di-tau mass spectrum. Such a measur...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2008
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2009/04/057 http://cds.cern.ch/record/1143064 |
_version_ | 1780915628395200512 |
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author | Nattermann, Till Desch, Klaus Wienemann, Peter Zendler, Carolin |
author_facet | Nattermann, Till Desch, Klaus Wienemann, Peter Zendler, Carolin |
author_sort | Nattermann, Till |
collection | CERN |
description | 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 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. |
id | cern-1143064 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2008 |
record_format | invenio |
spelling | cern-11430642021-05-03T20:18:29Zdoi:10.1088/1126-6708/2009/04/057http://cds.cern.ch/record/1143064engNattermann, TillDesch, KlausWienemann, PeterZendler, CarolinMeasuring tau-polarisation in neutralino2 decays at the LHCDetectors and Experimental TechniquesParticle Physics - PhenomenologyWe 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 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.arXiv:0903.0714oai:cds.cern.ch:11430642008-12-02 |
spellingShingle | Detectors and Experimental Techniques Particle Physics - Phenomenology Nattermann, Till Desch, Klaus Wienemann, Peter Zendler, Carolin Measuring tau-polarisation in neutralino2 decays at the LHC |
title | Measuring tau-polarisation in neutralino2 decays at the LHC |
title_full | Measuring tau-polarisation in neutralino2 decays at the LHC |
title_fullStr | Measuring tau-polarisation in neutralino2 decays at the LHC |
title_full_unstemmed | Measuring tau-polarisation in neutralino2 decays at the LHC |
title_short | Measuring tau-polarisation in neutralino2 decays at the LHC |
title_sort | measuring tau-polarisation in neutralino2 decays at the lhc |
topic | Detectors and Experimental Techniques Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1088/1126-6708/2009/04/057 http://cds.cern.ch/record/1143064 |
work_keys_str_mv | AT nattermanntill measuringtaupolarisationinneutralino2decaysatthelhc AT deschklaus measuringtaupolarisationinneutralino2decaysatthelhc AT wienemannpeter measuringtaupolarisationinneutralino2decaysatthelhc AT zendlercarolin measuringtaupolarisationinneutralino2decaysatthelhc |