The MSSM prediction for W+/- H-/+ production by gluon fusion

Details The MSSM prediction for W+/- H-/+ production by gluon fusion The MSSM prediction for W+/- H-/+ production by gluon fusion

2000-08-29

arxiv.org/abs/hep-ph/0008308v3

Phys.Rev.D63:095001,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pages, 7 figures, version to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.63.095001

We discuss the associated W+/- H-/+ production in p p collision for the Large Hadron Collider. A complete one-loop calculation of the loop-induced subprocess g g -> W+/- H-/+ is presented in the framework of the Minimal Supersymmetric Standard Model (MSSM), and the possible enhancement of the hadronic cross section is investigated under the constraint from the squark direct-search results and the low-energy precision data. Because of the large destructive interplay in the quark-loop contributions between triangle-type and box-type diagrams, the squark-loop contributions turn out to be comparable with the quark-loop ones. In particular, the hadronic cross section via gluon fusion can be extensively enhanced by squark-pair threshold effects in the box-type diagrams, so that it can be as large as the hadronic cross section via the b b-bar -> W+/- H-/+ subprocess which appears at tree level.

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