The one-loop amplitudes for Higgs + 4 partons with full mass effects
Abstract We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, 0 → ggggh, 0 → q ¯ $$ \overline{q} $$ qggh and 0 → q ¯ $$ \overline{q} $$ q q ¯ ′ $$ {\overline{q}}^{\prime } $$ q′h, mediated by a loop of massive coloured quarks. We exploit the correspondenc...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-05-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP05(2020)079 |
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doaj-fb29b96575844b9a96752bd1d2c170bd2020-11-25T02:57:41ZengSpringerOpenJournal of High Energy Physics1029-84792020-05-012020514810.1007/JHEP05(2020)079The one-loop amplitudes for Higgs + 4 partons with full mass effectsLucy Budge0John M. Campbell1Giuseppe De Laurentis2R. Keith Ellis3Satyajit Seth4Institute for Particle Physics Phenomenology, Durham UniversityFermilabInstitute for Particle Physics Phenomenology, Durham UniversityInstitute for Particle Physics Phenomenology, Durham UniversityPhysical Research LaboratoryAbstract We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, 0 → ggggh, 0 → q ¯ $$ \overline{q} $$ qggh and 0 → q ¯ $$ \overline{q} $$ q q ¯ ′ $$ {\overline{q}}^{\prime } $$ q′h, mediated by a loop of massive coloured quarks. We exploit the correspondence with a theory in which a massive coloured scalar circulates in the loop to avoid a proliferation in the number of terms in the result. In addition, we use momentum twistors and high precision numerical evaluations to simplify the expressions. The analytic results in this paper, in terms of spinor products, allow construction of an efficient numerical program to calculate the amplitude.http://link.springer.com/article/10.1007/JHEP05(2020)079NLO Computations |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Lucy Budge John M. Campbell Giuseppe De Laurentis R. Keith Ellis Satyajit Seth |
| spellingShingle |
Lucy Budge John M. Campbell Giuseppe De Laurentis R. Keith Ellis Satyajit Seth The one-loop amplitudes for Higgs + 4 partons with full mass effects Journal of High Energy Physics NLO Computations |
| author_facet |
Lucy Budge John M. Campbell Giuseppe De Laurentis R. Keith Ellis Satyajit Seth |
| author_sort |
Lucy Budge |
| title |
The one-loop amplitudes for Higgs + 4 partons with full mass effects |
| title_short |
The one-loop amplitudes for Higgs + 4 partons with full mass effects |
| title_full |
The one-loop amplitudes for Higgs + 4 partons with full mass effects |
| title_fullStr |
The one-loop amplitudes for Higgs + 4 partons with full mass effects |
| title_full_unstemmed |
The one-loop amplitudes for Higgs + 4 partons with full mass effects |
| title_sort |
one-loop amplitudes for higgs + 4 partons with full mass effects |
| publisher |
SpringerOpen |
| series |
Journal of High Energy Physics |
| issn |
1029-8479 |
| publishDate |
2020-05-01 |
| description |
Abstract We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, 0 → ggggh, 0 → q ¯ $$ \overline{q} $$ qggh and 0 → q ¯ $$ \overline{q} $$ q q ¯ ′ $$ {\overline{q}}^{\prime } $$ q′h, mediated by a loop of massive coloured quarks. We exploit the correspondence with a theory in which a massive coloured scalar circulates in the loop to avoid a proliferation in the number of terms in the result. In addition, we use momentum twistors and high precision numerical evaluations to simplify the expressions. The analytic results in this paper, in terms of spinor products, allow construction of an efficient numerical program to calculate the amplitude. |
| topic |
NLO Computations |
| url |
http://link.springer.com/article/10.1007/JHEP05(2020)079 |
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