Higgs production via gluon fusion in kT-factorisation
Theoretical studies of Higgs production via gluon fusion are frequently carried out in the limit where the top quark mass is much larger than the Higgs mass, an approximation which reduces the top quark loop to an effective vertex. We present a numerical analysis of the error thus introduced by perf...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2011
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| _version_ | 1797084293859639296 |
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| author | Hautmann, F Jung, H Pandis, V |
| author_facet | Hautmann, F Jung, H Pandis, V |
| author_sort | Hautmann, F |
| collection | OXFORD |
| description | Theoretical studies of Higgs production via gluon fusion are frequently carried out in the limit where the top quark mass is much larger than the Higgs mass, an approximation which reduces the top quark loop to an effective vertex. We present a numerical analysis of the error thus introduced by performing a Monte Carlo calculation for gg→h in kT-factorisation, using the parton shower generator CASCADE. By examining both inclusive and exclusive quantities, we find that retaining the top-mass dependence results in only a small enhancement of the cross-section. We then proceed to compare CASCADE to the collinear Monte Carlos PYTHIA, MC@NLO and POWHEG. © 2011 American Institute of Physics. |
| first_indexed | 2024-03-07T01:53:27Z |
| format | Journal article |
| id | oxford-uuid:9aeb2b7d-847f-4729-9e6e-08aa104757d6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:53:27Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:9aeb2b7d-847f-4729-9e6e-08aa104757d62022-03-27T00:24:45ZHiggs production via gluon fusion in kT-factorisationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9aeb2b7d-847f-4729-9e6e-08aa104757d6EnglishSymplectic Elements at Oxford2011Hautmann, FJung, HPandis, VTheoretical studies of Higgs production via gluon fusion are frequently carried out in the limit where the top quark mass is much larger than the Higgs mass, an approximation which reduces the top quark loop to an effective vertex. We present a numerical analysis of the error thus introduced by performing a Monte Carlo calculation for gg→h in kT-factorisation, using the parton shower generator CASCADE. By examining both inclusive and exclusive quantities, we find that retaining the top-mass dependence results in only a small enhancement of the cross-section. We then proceed to compare CASCADE to the collinear Monte Carlos PYTHIA, MC@NLO and POWHEG. © 2011 American Institute of Physics. |
| spellingShingle | Hautmann, F Jung, H Pandis, V Higgs production via gluon fusion in kT-factorisation |
| title | Higgs production via gluon fusion in kT-factorisation |
| title_full | Higgs production via gluon fusion in kT-factorisation |
| title_fullStr | Higgs production via gluon fusion in kT-factorisation |
| title_full_unstemmed | Higgs production via gluon fusion in kT-factorisation |
| title_short | Higgs production via gluon fusion in kT-factorisation |
| title_sort | higgs production via gluon fusion in kt factorisation |
| work_keys_str_mv | AT hautmannf higgsproductionviagluonfusioninktfactorisation AT jungh higgsproductionviagluonfusioninktfactorisation AT pandisv higgsproductionviagluonfusioninktfactorisation |