Higher-order QCD effects in the Higgs to ZZ search channel at the LHC
(2008) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 662(4). p.353-359- Abstract
We present a consistent analysis of the signal as well as the irreducible background for the search of the SM Higgs boson in the ZZ decay channel at the LHC. Soft-gluons effects are resummed up to next-to-leading logarithmic accuracy, and the results are compared to those obtained with fixed order calculations and the MC@NLO event generator. The soft-gluon effects are typically modest but should be taken into account when precise predictions are demanded. Our results show that the signal over background ratio can be significantly enhanced with a cut on the transverse momentum pT Z Z of the ZZ pair. We also introduce a fully transverse angular variable that could give information about the... (More)
We present a consistent analysis of the signal as well as the irreducible background for the search of the SM Higgs boson in the ZZ decay channel at the LHC. Soft-gluons effects are resummed up to next-to-leading logarithmic accuracy, and the results are compared to those obtained with fixed order calculations and the MC@NLO event generator. The soft-gluon effects are typically modest but should be taken into account when precise predictions are demanded. Our results show that the signal over background ratio can be significantly enhanced with a cut on the transverse momentum pT Z Z of the ZZ pair. We also introduce a fully transverse angular variable that could give information about the CP nature of the Higgs boson.
(Less)
- author
- Frederix, Rikkert LU and Grazzini, Massimiliano
- publishing date
- 2008-05-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- volume
- 662
- issue
- 4
- pages
- 7 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:41949127856
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2008.03.030
- language
- English
- LU publication?
- no
- id
- 6df63d16-76cb-4ec7-afc4-927534349180
- date added to LUP
- 2019-05-28 14:52:13
- date last changed
- 2022-01-31 21:04:34
@article{6df63d16-76cb-4ec7-afc4-927534349180, abstract = {{<p>We present a consistent analysis of the signal as well as the irreducible background for the search of the SM Higgs boson in the ZZ decay channel at the LHC. Soft-gluons effects are resummed up to next-to-leading logarithmic accuracy, and the results are compared to those obtained with fixed order calculations and the MC@NLO event generator. The soft-gluon effects are typically modest but should be taken into account when precise predictions are demanded. Our results show that the signal over background ratio can be significantly enhanced with a cut on the transverse momentum p<sub>T</sub> <sup>Z Z</sup> of the ZZ pair. We also introduce a fully transverse angular variable that could give information about the CP nature of the Higgs boson.</p>}}, author = {{Frederix, Rikkert and Grazzini, Massimiliano}}, issn = {{0370-2693}}, language = {{eng}}, month = {{05}}, number = {{4}}, pages = {{353--359}}, publisher = {{Elsevier}}, series = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}}, title = {{Higher-order QCD effects in the Higgs to ZZ search channel at the LHC}}, url = {{http://dx.doi.org/10.1016/j.physletb.2008.03.030}}, doi = {{10.1016/j.physletb.2008.03.030}}, volume = {{662}}, year = {{2008}}, }