arXiv:hep-ph/9705389·v1·High Energy Physics — Phenomenology

The processes $e^{+} e^{-} \to b b ˉ W^{\pm} H^{\mp}$ and $e^{+} e^{-} \to b b ˉ H^{+} H^{-}$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model

S. Moretti · K. Odagiri (Cavendish Laboratory, Cambridge, UK)

Abstract

The complete matrix elements for $e^{+} e^{-} \to b b ˉ W^{\pm} H^{\mp}$ and $e^{+} e^{-} \to b b ˉ H^{+} H^{-}$ 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) $t t ˉ$ pair production followed by the top decays into $b b ˉ W^{\pm} H^{\mp}$ and $b b ˉ H^{+} H^{-}$ final states; (ii) $H^{+} H^{-}$ signals in which $H^{\pm} \to h W^{\pm} \to b b ˉ W^{\pm}$ and $H^{\pm} \to t b \to b b ˉ W^{\pm}$ . Top and Higgs finite width effects are included as well as all those due to the irreducible backgrounds.

Comments: 34 pages, latex, epsfig, 15 postscript figures bitmapped at 1000dpi, complete paper including high resolution plots available at ftp://axpa.hep.phy.cam.ac.uk/moretti/cavendish_9701 and at http://www.hep.phy.cam.ac.uk/theory/papers/

The processes e+e−→bbˉW±H∓ and e+e−→bbˉH+H− at the Next Linear Collider in the Minimal Supersymmetric Standard Model

Abstract

The processes $e^{+} e^{-} \to b b ˉ W^{\pm} H^{\mp}$ and $e^{+} e^{-} \to b b ˉ H^{+} H^{-}$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model