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Improved description of charged Higgs boson production at hadron colliders

Alwall, Johan and Rathsman, Johan LU (2004) In Journal of High Energy Physics 8(12). p.1119-1138
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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author
and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hadronic Colliders, Higgs Physics, Phenomenological Models, QCD
in
Journal of High Energy Physics
volume
8
issue
12
pages
20 pages
publisher
Springer
external identifiers
  • scopus:21444438391
ISSN
1029-8479
language
English
LU publication?
no
id
2975e9d7-54e2-4787-be7f-605140145ac8
date added to LUP
2019-05-14 13:46:13
date last changed
2022-04-18 04:54:08
@article{2975e9d7-54e2-4787-be7f-605140145ac8,
  abstract     = {{<p>We present a new method for matching the two twin-processes gb → H<sup>±</sup>t and gg → H<sup>±</sup>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 <sup>±</sup>t, and the hard region, which requires the use of the gg → H<sup>±</sup>tb process. The resulting differential distributions show large differences compared to both the gb → H<sup>±</sup>t and gg → H<sup>±</sup>tb processes illustrating the necessity to use matching when tagging the accompanying b-jet.</p>}},
  author       = {{Alwall, Johan and Rathsman, Johan}},
  issn         = {{1029-8479}},
  keywords     = {{Hadronic Colliders; Higgs Physics; Phenomenological Models; QCD}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{12}},
  pages        = {{1119--1138}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Improved description of charged Higgs boson production at hadron colliders}},
  volume       = {{8}},
  year         = {{2004}},
}