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CutLoops SIGNED

Loop amplitudes in quantum field theory

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

CutLoops project word cloud

Explore the words cloud of the CutLoops project. It provides you a very rough idea of what is the project "CutLoops" about.

computing found shell describe suitable theories gauge computational calculations integrals precision computations collider combined quantum investigations shows equipped prior improvements forms formal describing particle extensions systematically collisions indicates led feynman relativistic construct dramatic structure frame latest model scattering time loop lhc amplitudes ill probability hadron formulation simplicity difficult framework mathematics singularities complete surprisingly standard computed theory handle successes deep

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 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.	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

List of publications.
year	authors and title	journal	last update
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. MaierhÃ¶fer, J. Usovitsch, P. Uwer Kiraâ€”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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