Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay

We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision numerical results. The analytic expressions are given in terms of multiple polylogarithms (MPLs), elliptic multiple polylo...

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Detalles Bibliográficos
Autores principales: Abreu, Samuel, Becchetti, Matteo, Duhr, Claude, Ozcelik, Melih A.
Lenguaje:eng
Publicado: 2022
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP09(2022)194
http://cds.cern.ch/record/2811852
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author Abreu, Samuel
Becchetti, Matteo
Duhr, Claude
Ozcelik, Melih A.
author_facet Abreu, Samuel
Becchetti, Matteo
Duhr, Claude
Ozcelik, Melih A.
author_sort Abreu, Samuel
collection CERN
description We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision numerical results. The analytic expressions are given in terms of multiple polylogarithms (MPLs), elliptic multiple polylogarithms (eMPLs) and iterated integrals of Eisenstein series. As an application of our results, we obtain for the first time an analytic expression for the two-loop amplitude for para-positronium decay to two photons at two loops.
id cern-2811852
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
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spelling cern-28118522023-10-04T08:50:37Zdoi:10.1007/JHEP09(2022)194http://cds.cern.ch/record/2811852engAbreu, SamuelBecchetti, MatteoDuhr, ClaudeOzcelik, Melih A.Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decayParticle Physics - PhenomenologyWe compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision numerical results. The analytic expressions are given in terms of multiple polylogarithms (MPLs), elliptic multiple polylogarithms (eMPLs) and iterated integrals of Eisenstein series. As an application of our results, we obtain for the first time an analytic expression for the two-loop amplitude for para-positronium decay to two photons at two loops.We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision numerical results. The analytic expressions are given in terms of multiple polylogarithms (MPLs), elliptic multiple polylogarithms (eMPLs) and iterated integrals of Eisenstein series. As an application of our results, we obtain for the first time an analytic expression for the two-loop amplitude for para-positronium decay to two photons at two loops.arXiv:2206.03848BONN-TH-2022-14CERN-TH-2022-093TTP22-037oai:cds.cern.ch:28118522022-06-08
spellingShingle Particle Physics - Phenomenology
Abreu, Samuel
Becchetti, Matteo
Duhr, Claude
Ozcelik, Melih A.
Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title_full Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title_fullStr Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title_full_unstemmed Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title_short Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
title_sort two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP09(2022)194
http://cds.cern.ch/record/2811852
work_keys_str_mv AT abreusamuel twoloopmasterintegralsforpseudoscalarquarkoniumandleptoniumproductionanddecay
AT becchettimatteo twoloopmasterintegralsforpseudoscalarquarkoniumandleptoniumproductionanddecay
AT duhrclaude twoloopmasterintegralsforpseudoscalarquarkoniumandleptoniumproductionanddecay
AT ozcelikmeliha twoloopmasterintegralsforpseudoscalarquarkoniumandleptoniumproductionanddecay

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