Stau LSP and comparison with H^+(-) phenomenology

Details Stau LSP and comparison with H^+(-) phenomenology Stau LSP and comparison with H^+(-) phenomenology

2001-07-20

arxiv.org/abs/hep-ph/0107218v3

Phys.Rev. D65 (2002) 015008

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 2 figures, Revtex, short discussion and references added

Scientific paper

10.1103/PhysRevD.65.015008

In supersymmetric models with explicit breaking of R-parity the lightest supersymmetric particle (LSP) may be the lightest stau, $\stau_1$. Such a scenario would provide a clear sign of R-parity violating SUSY, although its phenomenology may resemble that of a charged Higgs boson, $H^\pm$. We discuss various ways of distinguishing a LSP $\stau_1$ from $H^\pm$ at future colliders, and address the case of $\stau_1$ mimicking the signal for $H^\pm$. As an example we suggest that the recent L3 signal for $H^+H^-\to qq'qq'$ and $H^+H^-\to qq'\tau\nu_{\tau}$ could be more easily explained by a LSP $\stau_1$.

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