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Title: 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, $$0 \to g g g g h$$, $$0 \to \bar{q} q gg h$$ and $$0\to \bar{q} q \bar{q}^\prime q^\prime h$$, 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.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1];  [3]
  1. Durham Univ. (United Kingdom)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Physical Research Lab., Ahmedabad (India)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1606570
Report Number(s):
arXiv:2002.04018; FERMILAB-PUB-20-062-T; IPPP/20/3
Journal ID: ISSN 1029-8479; oai:inspirehep.net:1779473
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2020; Journal Issue: 5; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NLO computations

Citation Formats

Budge, Lucy, Campbell, John M., De Laurentis, Giuseppe, Ellis, R. Keith, and Seth, Satyajit. The one-loop amplitudes for Higgs + 4 partons with full mass effects. United States: N. p., 2020. Web. doi:10.1007/JHEP05(2020)079.
Budge, Lucy, Campbell, John M., De Laurentis, Giuseppe, Ellis, R. Keith, & Seth, Satyajit. The one-loop amplitudes for Higgs + 4 partons with full mass effects. United States. doi:https://doi.org/10.1007/JHEP05(2020)079
Budge, Lucy, Campbell, John M., De Laurentis, Giuseppe, Ellis, R. Keith, and Seth, Satyajit. Mon . "The one-loop amplitudes for Higgs + 4 partons with full mass effects". United States. doi:https://doi.org/10.1007/JHEP05(2020)079. https://www.osti.gov/servlets/purl/1606570.
@article{osti_1606570,
title = {The one-loop amplitudes for Higgs + 4 partons with full mass effects},
author = {Budge, Lucy and Campbell, John M. and De Laurentis, Giuseppe and Ellis, R. Keith and Seth, Satyajit},
abstractNote = {We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, $0 \to g g g g h$, $0 \to \bar{q} q gg h$ and $0\to \bar{q} q \bar{q}^\prime q^\prime h$, 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.},
doi = {10.1007/JHEP05(2020)079},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2020,
place = {United States},
year = {2020},
month = {5}
}

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