Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-06-21
Eur.Phys.J.direct C4:15,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, latex, 5 figures, three references added
Scientific paper
We show how a statistically significant signal of heavy charged Higgs bosons of a general Two-Higgs Doublet Model produced in association with tau-neutrino pairs can be established at future Linear Colliders in the $H^+\to t\bar b\to 4$ jet decay channel. This signature is particularly relevant in the kinematic configuration $\sqrt s\lsim2 M_{H^\pm}$, when the pair production channel $e^+e^-\to H^-H^+$ is no longer available. Here, the initially overwhelming background, constituted by top quark pair production and decay, can vigorously be reduced thanks to a dedicated selection procedure that allows one to extract a signal in a region of several tens of GeV around $M_{H^\pm}\approx \sqrt s/2$, for $\tan\beta\gsim40$.
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