Minimal supersymmetric standard model prediction for W+/-H-/+ production by gluon fusion at the CERN Large Hadron Collider
Abstract
We discuss the associated W+/-H-/+ production in pp collision for the CERN Large Hadron Collider. A complete one-loop calculation of the loop-induced subprocess gg-->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 reach the size of the hadronic cross section via the subprocess bb¯-->W+/-H-/+ which appears at the tree level.
- Publication:
-
Physical Review D
- Pub Date:
- May 2001
- DOI:
- 10.1103/PhysRevD.63.095001
- arXiv:
- arXiv:hep-ph/0008308
- Bibcode:
- 2001PhRvD..63i5001B
- Keywords:
-
- 12.60.Jv;
- 14.80.Cp;
- Supersymmetric models;
- Non-standard-model Higgs bosons;
- High Energy Physics - Phenomenology
- E-Print:
- 35 pages, 7 figures, version to appear in Physical Review D