Improved description of charged Higgs boson production at hadron colliders

Details Improved description of charged Higgs boson production at hadron colliders Improved description of charged Higgs boson production at hadron colliders

2004-09-08

arxiv.org/abs/hep-ph/0409094v2

JHEP 0412:050,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 9 figures. Revised with updated discussion and references

Scientific paper

10.1088/1126-6708/2004/12/050

We present a new method for matching the two twin-processes gb->H+/-t and gg->H+/-tb in Monte Carlo event generators. The matching is done by defining a double-counting term, which is used to generate events that are subtracted from the sum of these two twin-processes. In this way we get a smooth transition between the collinear region of phase space, which is best described by gb->H+/-t, and the hard region, which requires the use of the gg->H+/-tb process. The resulting differential distributions show large differences compared to both the gb-> H+/-t and gg->H+/-tb processes illustrating the necessity to use matching when tagging the accompanying b-jet.

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