Year: 2021
Type: article
Abstract: We compute ε-expansions around 4 dimensions of a complete set of master integrals for momentum space five-loop massless propagator integrals in dimensional regularization, up to and including the first order with contributions of transcendental weight nine. Our method is the glue-and-cut technique from Baikov and Chetyrkin, which proves extremely effective in that it determines all expansion coefficients to this order in terms of recursively one-loop integrals and only one further integral. We observe that our results are compatible with conjectures that predict π-dependent contributions.
Source: Journal of High Energy Physics
Institutions: Uppsala University, Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Sorbonne Université, Sorbonne Paris Cité, Laboratoire de Physique de l'Ecole Normale Supérieure, ICTP South American Institute for Fundamental Research, Université Paris Diderot, Universidade Estadual Paulista (Unesp), Universidade do Porto, University of Oxford, Trinity College Dublin, Lomonosov Moscow State University, Moscow Center of Fundamental and Applied Mathematics, Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W3154517564