The $τ$-polarisation test for the $H/A\toτ^+τ^-$ signal at the LHC

Details The $τ$-polarisation test for the $H/A\toτ^+τ^-$ signal at the LHC The $τ$-polarisation test for the $H/A\toτ^+τ^-$ signal at the LHC

2002-06-21

arxiv.org/abs/hep-ph/0206206v2

Phys.Lett. B545 (2002) 329-336

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, latex, 4 figures, minor changes, version to appear in PLB

Scientific paper

10.1016/S0370-2693(02)02600-X

The correlation between the two $\tau$-polarisations is predicted to be opposite $(+-/-+)$ for the $H/A \to \tau^+\tau^-$ signal, while it corresponds to the same sign combinations for the Drell-Yan $(++/--)$ and $t \bar t$ $(--)$ backgrounds. We show that this correlation can serve as a distinctive test to confirm the presence of the MSSM Higgs bosons $H$ and $A$ in their hadronic $\tau^+\tau^-$ decay channels at the LHC.

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