Impact of tau polarization on the study of the MSSM charged Higgs bosons in top quark decays at the ILC

Details Impact of tau polarization on the study of the MSSM charged Higgs bosons in top quark decays at the ILC Impact of tau polarization on the study of the MSSM charged Higgs bosons in top quark decays at the ILC

2005-07-08

arxiv.org/abs/hep-ph/0507100v1

ECONF C050318:0213,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at 2005 International Linear Collider Workshop (LCWS 2005), Stanford, California, USA, 18-22 Mar 2005. 6 pages, LaT

Scientific paper

The process of top quark pair production at the ILC with subsequent decays of one of the top quarks to a charged Higgs boson and b-quark is considered. The charged Higgs decays to tau leptons whose polarization is the opposite to those coming from W bosons. This difference is reflected in the energy distributions of the tau decay products in the top quark rest frame, which can be reconstructed at the ILC using the recoil mass technique. We present an analysis including spin correlations, backgrounds, ISR/FSR and beamstrahlung, and show that a fit of the shape of the pion energy spectrum yields the charged Higgs boson mass with an accuracy of about 1 GeV.

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