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Polarisation in sfermion decays: determining \(\tan\beta\) and trilinear couplings

  • E. Boos
  • H.-U. Martyn
  • G. Moortgat-Pick
  • M. Sachwitz
  • A. Sherstnev
  • P. M. Zerwas
theoretical physics

Abstract.

The basic parameters of supersymmetric theories can be determined at future e + e - linear colliders with high precision. We investigate in this report how polarisation measurements in \(\tilde{\tau}\) and \(\tilde{t}\) or \(\tilde{b}\) decays to \(\tau\) leptons and t quarks plus neutralinos or charginos can be used to measure \(\tan\beta\) (in particular for large values) and to determine the trilinear couplings \(A_{\tau}\), A t and A b in sfermion pair production.

Keywords

High Precision Pair Production Basic Parameter Polarisation Measurement Supersymmetric Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • E. Boos
    • 1
    • 2
  • H.-U. Martyn
    • 3
  • G. Moortgat-Pick
    • 2
    • 4
  • M. Sachwitz
    • 5
  • A. Sherstnev
    • 1
  • P. M. Zerwas
    • 2
  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia
  2. 2.DESY, Deutsches Elektronen-SynchrotronHamburgGermany
  3. 3.Rheinisch-Westfälische Technische HochschuleAachenGermany
  4. 4.IPPPUniversity of DurhamDurhamUK
  5. 5.DESY, Deutsches Elektronen-SynchrotronZeuthenGermany

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