The processes $e^+e^-\to b\bar bW^\pm H^\mp$ and $e^+e^-\to b\bar bH^+H^-$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model

Details The processes $e^+e^-\to b\bar bW^\pm H^\mp$ and $e^+e^-\to b\bar bH^+H^-$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model The processes $e^+e^-\to b\bar bW^\pm H^\mp$ and $e^+e^-\to b\bar bH^+H^-$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model

1997-05-22

arxiv.org/abs/hep-ph/9705389v1

Eur.Phys.J.C1:633-647,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, latex, epsfig, 15 postscript figures bitmapped at 1000dpi, complete paper including high resolution plots available

Scientific paper

10.1007/s100520050112

The complete matrix elements for $e^+e^-\to b\bar bW^\pm H^\mp$ and $e^+e^-\to b\bar bH^+H^-$ are computed at tree-level within the Minimal Supersymmetric Standard Model. Rates of interest to phenomenological analyses at the Next Linear Collider are given. In particular, we analyse: (i) $t\bar t$ pair production followed by the top decays into $b\bar bW^\pm H^\mp$ and $b\bar b H^+H^-$ final states; (ii) $H^+H^-$ signals in which $H^\pm\to h W^\pm \to b\bar b W^\pm$ and $H^\pm\to tb\to b\bar b W^\pm$. Top and Higgs finite width effects are included as well as all those due to the irreducible backgrounds.

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