On non-factorisable contributions to t-channel single-top production

Abstract We compute the non-factorisable contribution to the two-loop helicity amplitude for t-channel single-top production, the last missing piece of the two-loop virtual corrections to this process. Our calculation employs analytic reduction to master integrals and the auxiliary mass flow method...

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Autores principales:	Christian Brønnum-Hansen, Kirill Melnikov, Jérémie Quarroz, Chen-Yu Wang
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Perturbative QCD Scattering Amplitudes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/5e11a4589b5a4d1da65e32c8361758f7
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spelling	oai:doaj.org-article:5e11a4589b5a4d1da65e32c8361758f72021-11-21T12:41:14ZOn non-factorisable contributions to t-channel single-top production10.1007/JHEP11(2021)1301029-8479https://doaj.org/article/5e11a4589b5a4d1da65e32c8361758f72021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)130https://doaj.org/toc/1029-8479Abstract We compute the non-factorisable contribution to the two-loop helicity amplitude for t-channel single-top production, the last missing piece of the two-loop virtual corrections to this process. Our calculation employs analytic reduction to master integrals and the auxiliary mass flow method for their fast numerical evaluation. We study the impact of these corrections on basic observables that are measured experimentally in the single-top production process.Christian Brønnum-HansenKirill MelnikovJérémie QuarrozChen-Yu WangSpringerOpenarticlePerturbative QCDScattering AmplitudesNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-24 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Perturbative QCD Scattering Amplitudes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Perturbative QCD Scattering Amplitudes Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Christian Brønnum-Hansen Kirill Melnikov Jérémie Quarroz Chen-Yu Wang On non-factorisable contributions to t-channel single-top production
description	Abstract We compute the non-factorisable contribution to the two-loop helicity amplitude for t-channel single-top production, the last missing piece of the two-loop virtual corrections to this process. Our calculation employs analytic reduction to master integrals and the auxiliary mass flow method for their fast numerical evaluation. We study the impact of these corrections on basic observables that are measured experimentally in the single-top production process.
format	article
author	Christian Brønnum-Hansen Kirill Melnikov Jérémie Quarroz Chen-Yu Wang
author_facet	Christian Brønnum-Hansen Kirill Melnikov Jérémie Quarroz Chen-Yu Wang
author_sort	Christian Brønnum-Hansen
title	On non-factorisable contributions to t-channel single-top production
title_short	On non-factorisable contributions to t-channel single-top production
title_full	On non-factorisable contributions to t-channel single-top production
title_fullStr	On non-factorisable contributions to t-channel single-top production
title_full_unstemmed	On non-factorisable contributions to t-channel single-top production
title_sort	on non-factorisable contributions to t-channel single-top production
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/5e11a4589b5a4d1da65e32c8361758f7
work_keys_str_mv	AT christianbrønnumhansen onnonfactorisablecontributionstotchannelsingletopproduction AT kirillmelnikov onnonfactorisablecontributionstotchannelsingletopproduction AT jeremiequarroz onnonfactorisablecontributionstotchannelsingletopproduction AT chenyuwang onnonfactorisablecontributionstotchannelsingletopproduction
_version_	1718418885425758208

On non-factorisable contributions to t-channel single-top production

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