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arXiv · hep-ph/0409094

Improved description of charged Higgs boson production at hadron colliders

J. Alwall·J. Rathsman
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Abstract

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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J. Alwall, J. Rathsman. 2005-01-13. Improved description of charged Higgs boson production at hadron colliders. https://doi.org/10.1088/1126-6708%2F2004%2F12%2F050

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