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Factorization and subtraction

Name: Factorization and subtraction
Keywords: High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type , Conference object 08 Mar 2018Embargo end date: 01 Jan 2018 Italy Publisher:Sissa MedialabJournal:Proceedings of 13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR2017)

Authors: Lorenzo Magnea; Ezio Maina; Paolo Torrielli; Sandro Uccirati;

doi: 10.22323/1.290.0043 , 10.48550/arxiv.1801.06462

arXiv: http://arxiv.org/abs/1801.06462

handle: 2318/1658609

Factorization and subtraction

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Abstract

We explore the connection between the factorisation of virtual corrections to multi-particle massless gauge theory amplitudes and the problem of subtraction at NNLO and beyond. Taking inspiration from virtual factorisation, we provide a set of definitions for local soft and collinear counterterms, expressed in terms of matrix elements of operators involving fields and Wilson lines, and valid to all orders in perturbation theory. We hope that the connection between factorisation and subtraction will help in the construction of minimal, stable, and efficient subtraction algorithms, taking maximal advantage of existing analytic information.

12 pages, contribution to the proceedings of `RADCOR 2017', St. Gilgen (Austria), September 2017

Country

Italy

Related Organizations

University of Turin
Italy

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

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