https://doi.org/10.1140/epjc/s10052-021-08996-y
Review
May the four be with you: novel IR-subtraction methods to tackle NNLO calculations
1
Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, 80805, Munich, Germany
2
Instituto de Física Corpuscular, UVEG–CSIC, 46980, Paterna, Spain
3
Deutsches Elektronensynchrotron DESY, 15738, Zeuthen, Germany
4
Paul Scherrer Institute (PSI), 5232, Villigen, Switzerland
5
INFN, Sezione di Firenze, 50019, Sesto Fiorentino, Italy
6
CCNH, Universidade Federal do ABC, 09210-580, Santo André, Brazil
7
INFN, Sezione di Genova, 16146, Genoa, Italy
8
Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland
9
Dipartimento di Fisica, Università di Milano and INFN, Sezione di Milano, 20133, Milan, Italy
10
Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Sinaloa, 80000, Culiacán, Mexico
11
CFisUC, Department of Physics, University of Coimbra, 3004-516, Coimbra, Portugal
12
Institut für Theoretische Physik und Astrophysik, Universität Würzburg, 97074, Würzburg, Germany
13
Laboratório de Instrumentação e Física de Partículas LIP, 1649-003, Lisbon, Portugal
14
Dep. de Física Teórica y del Cosmos and CAFPE, Universidad de Granada, 18071, Granada, Spain
15
Università di Milano-Bicocca and INFN, Sezione di Milano-Bicocca, 20126, Milan, Italy
16
Institut fur Theoretische Teilchenphysik, Karlsruher Institut fur Technologie, 76128, Karlsruhe, Germany
17
Dipartimento di Fisica and Arnold-Regge Center, Università di Torino and INFN, 10125, Torin, Italy
18
Institut für Kern- und Teilchenphysik, TU Dresden, 01062, Dresden, Germany
19
Università di Napoli and INFN, Sezione di Napoli, 80126, Naples, Italy
20
Institute for Particle Physics Phenomenology, DH1 3LE, Durham, UK
Received:
11
December
2020
Accepted:
19
February
2021
Published online:
22
March
2021
In this manuscript, we report the outcome of the topical workshop: paving the way to alternative NNLO strategies (https://indico.ific.uv.es/e/WorkStop-ThinkStart_3.0), by presenting a discussion about different frameworks to perform precise higher-order computations for high-energy physics. These approaches implement novel strategies to deal with infrared and ultraviolet singularities in quantum field theories. A special emphasis is devoted to the local cancellation of these singularities, which can enhance the efficiency of computations and lead to discover novel mathematical properties in quantum field theories.
© The Author(s) 2021
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