Explore the words cloud of the InsideLoops project. It provides you a very rough idea of what is the project "InsideLoops" about.
The following table provides information about the project.
Coordinator |
EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Organization address contact info |
Coordinator Country | Switzerland [CH] |
Project website | https://people.phys.ethz.ch/ |
Total cost | 175˙419 € |
EC max contribution | 175˙419 € (100%) |
Programme |
1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility) |
Code Call | H2020-MSCA-IF-2016 |
Funding Scheme | MSCA-IF-EF-ST |
Starting year | 2017 |
Duration (year-month-day) | from 2017-10-01 to 2019-09-30 |
Take a look of project's partnership.
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1 | EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH | CH (ZUERICH) | coordinator | 175˙419.00 |
The LHC era of fundamental physics presents a formidable challenge for theorists - the precision of Standard Model predictions should be improved by a factor of two. One of the major bottlenecks is the availability of two-loop scattering amplitudes in quantum chromodynamics (QCD), which is largely limited to 2 -> 2 processes due to the daunting complexity of the perturbative series. The need for amplitudes of higher-multiplicity processes calls for new analytic insights into the intricate structure of gauge theories.
This project centers around one such insight - colour-kinematics duality - and aims to convert it into a powerful ally for future QCD calculations. This will be possible because the duality, recently generalised from the purely gluonic sector to full QCD, contains valuable information about non-Abelian gauge theories. In particular, it relates aspects of QCD calculations that are simpler to aspects, which are thought to be much harder. This input non-trivially constrains the S-matrix and thus can be used to reduce the number of subcalculations needed. To achieve this, we plan to pursue the four following lines of research: - systematise the relations among generalised unitarity cuts, which follow from tree-level amplitude relations induced by the duality of colour and kinematics; - simplify the analytic structure of loop integrands via smart loop momentum parametrisation; - develop tools for tree-level amplitudes in six-dimensional gauge theories, which serve as input for dimensionally-regulated two-loop amplitudes in four dimensions; - calculate previously inaccessible two-loop amplitudes contributing to NNLO corrections to 2 -> 3 QCD processes at the LHC.
This will improve our understanding of gauge theories and open the way to previously intractable calculations of higher-loop scattering amplitudes, such as the next-to-next-to-leading-order amplitude for 2 -> 3 parton scattering, thus making a major impact on the field of perturbative QCD.
year | authors and title | journal | last update |
---|---|---|---|
2019 |
Alfredo Guevara, Alexander Ochirov, Justin Vines Black-hole scattering with general spin directions from minimal-coupling amplitudes published pages: 104024, ISSN: 2470-0010, DOI: 10.1103/physrevd.100.104024 |
Physical Review D 100/10 | 2020-03-23 |
2019 |
Gregor Kälin, Gustav Mogull, Alexander Ochirov, Bram Verbeek Infrared and transcendental structure of two-loop supersymmetric QCD amplitudes published pages: , ISSN: , DOI: |
arXiv preprint 1911.10218 [hep-th] | 2020-03-23 |
2018 |
Alexander Ochirov Helicity amplitudes for QCD with massive quarks published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep04(2018)089 |
Journal of High Energy Physics 2018/4 | 2020-03-23 |
2019 |
Gregor Kälin, Gustav Mogull, Alexander Ochirov Two-loop N $$ mathcal{N} $$ = 2 SQCD amplitudes with external matter from iterated cuts published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep07(2019)120 |
Journal of High Energy Physics 2019/7 | 2020-03-23 |
2019 |
Alfredo Guevar, Alexander Ochirov, Justin Vines Scattering of spinning black holes from exponentiated soft factors published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep09(2019)056 |
Journal of High Energy Physics 2019/9 | 2020-03-23 |
2019 |
Alexander Ochirov, Ben Page Multi-quark colour decompositions from unitarity published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep10(2019)058 |
Journal of High Energy Physics 2019/10 | 2020-03-23 |
2019 |
Henrik Johansson, Alexander Ochirov Double copy for massive quantum particles with spin published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep09(2019)040 |
Journal of High Energy Physics 2019/9 | 2020-03-23 |
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The information about "INSIDELOOPS" are provided by the European Opendata Portal: CORDIS opendata.
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