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CutLoops SIGNED

Loop amplitudes in quantum field theory

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EC-Contrib. €

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Partnership

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Project "CutLoops" data sheet

The following table provides information about the project.

Coordinator
THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN 

Organization address
address: College Green
city: DUBLIN
postcode: 2
website: www.tcd.ie

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Ireland [IE]
 Total cost 1˙954˙065 €
 EC max contribution 1˙954˙065 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-CoG
 Funding Scheme ERC-COG
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2021-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN IE (DUBLIN) coordinator 1˙954˙065.00

Map

 Project objective

The traditional formulation of relativistic quantum theory is ill-equipped to handle the range of difficult computations needed to describe particle collisions at the Large Hadron Collider (LHC) within a suitable time frame. Yet, recent work shows that probability amplitudes in quantum gauge field theories, such as those describing the Standard Model and its extensions, take surprisingly simple forms. The simplicity indicates deep structure in gauge theory that has already led to dramatic computational improvements, but remains to be fully understood. For precision calculations and investigations of the deep structure of gauge theory, a comprehensive method for computing multi-loop amplitudes systematically and efficiently must be found.

The goal of this proposal is to construct a new and complete approach to computing amplitudes from a detailed understanding of their singularities, based on prior successes of so-called on-shell methods combined with the latest developments in the mathematics of Feynman integrals. Scattering processes relevant to the LHC and to formal investigations of quantum field theory will be computed within the new framework.

 Publications

year authors and title journal last update
List of publications.
2017 Andreas von Manteuffel, Robert M. Schabinger
Quark and gluon form factors to four loop order in QCD: the N3f contributions
published pages: 34030, ISSN: 2470-0010, DOI:
Phys. Rev. D 95 2020-03-20
2017 Samuel Abreu, Ruth Britto, Claude Duhr, Einan Gardi
Algebraic Structure of Cut Feynman Integrals and the Diagrammatic Coaction
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.119.051601
Physical Review Letters 119/5 2020-03-20
2017 Samuel Abreu, Ruth Britto, Claude Duhr, Einan Gardi
Diagrammatic Hopf algebra of cut Feynman integrals: the one-loop case
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP12(2017)090
Journal of High Energy Physics 2017/12 2020-03-20
2017 Samuel Abreu, Ruth Britto, Claude Duhr, Einan Gardi
Cuts from residues: the one-loop case
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP06(2017)114
Journal of High Energy Physics 2017/6 2020-03-20
2018 P. Maierhöfer, J. Usovitsch, P. Uwer
Kira—A Feynman integral reduction program
published pages: , ISSN: 0010-4655, DOI: 10.1016/j.cpc.2018.04.012
Computer Physics Communications 2020-03-20
2016 Andreas von Manteuffel, Erik Panzer, Robert M. Schabinger
Computation of form factors in massless QCD with finite master integrals
published pages: , ISSN: 2470-0029, DOI: 10.1103/PhysRevD.93.125014
Physical Review D 93/12 2020-03-20
2017 Mark Harley, Francesco Moriello, Robert M. Schabinger
Baikov-Lee representations of cut Feynman integrals
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP06(2017)049
Journal of High Energy Physics 2017/6 2020-03-20
2017 Andreas von Manteuffel, Robert M. Schabinger
Numerical multi-loop calculations via finite integrals and one-mass EW-QCD Drell-Yan master integrals
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP04(2017)129
Journal of High Energy Physics 2017/4 2020-03-20

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