Published May 13, 2024
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Five-parton scattering in QCD at two loops
Creators
- 1. Institute for Theoretical Physics, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
- 2. Physik Department, James-Franck-Straße 1, Technische Universität München, D–85748 Garching, Germany
- 3. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
- 4. New College, University of Oxford, Holywell Street, Oxford OX1 3BN, United Kingdom
- 5. Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany
- 6. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
Description
We compute all helicity amplitudes for the scattering of five partons in two-loop QCD in all the relevant flavor configurations, retaining all contributing color structures. We employ tensor projection to obtain helicity amplitudes in the 't Hooft-Veltman scheme starting from a set of primitive amplitudes. Our analytic results are expressed in terms of massless pentagon functions, and are easy to evaluate numerically. These amplitudes provide important input to investigations of soft-collinear factorization and to studies of the high-energy limit.
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10.1103_PhysRevD.109.094025.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.109.094025;
- arXiv
- arXiv:2311.09870;
- Crossref Funder ID
- 10.13039/501100001659; 10.13039/501100000288; 10.13039/100000001; 10.13039/501100000781; 10.13039/100010661;
Publishing Information
- Journal Title
- Physical Review D
- Journal Volume
- 109
- Journal Issue
- 9
- Journal Page Range
- 10 pgs.
- ISSN
- 1089-4918
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- AMPLITUDES; ASYMPTOTIC SOLUTIONS; COLOR MODEL; FACTORIZATION; FEYNMAN DIAGRAM; FLAVOR MODEL; GLUONS; HELICITY; MANDELSTAM REPRESENTATION; MASSLESS PARTICLES; PARTICLE STRUCTURE; QUANTUM CHROMODYNAMICS; QUARKS; SCATTERING AMPLITUDES; STRUCTURE FUNCTIONS; TENSORS
- Descriptors DEC
- AMPLITUDES; BOSONS; COMPOSITE MODELS; DIAGRAMS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNCTIONS; INFORMATION; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUARK MODEL
Optional Information
- Contract/Grant/Project number
- 396021762—TRR 257; URF/R1/191125; 2013859; 949279 HighPHun; 804394 hipQCD; EXC-2094–390783311
- Notes
- Contact Email: bakul.agarwal@kit.edu; Contact Email: federico.buccioni@tum.de; Contact Email: federica.devoto@physics.ox.ac.uk; Contact Email: giulio.gambuti@physics.ox.ac.uk; Contact Email: manteuffel@ur.de; Contact Email: lorenzo.tancredi@tum.de; Record automatically processed
- Funding organization
- Deutsche Forschungsgemeinschaft; Royal Society; National Science Foundation; European Research Council; Horizon 2020 Framework Programme; Germany's Excellence Strategy