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Amplitudes and form factors via integrability

Total Cost €


EC-Contrib. €






Project "AFFINITY" data sheet

The following table provides information about the project.


Organization address
address: 327 MILE END ROAD
city: LONDON
postcode: E1 4NS

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 United Kingdom [UK]
 Total cost 195˙454 €
 EC max contribution 195˙454 € (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 2018
 Duration (year-month-day) from 2018-02-01   to  2020-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    QUEEN MARY UNIVERSITY OF LONDON UK (LONDON) coordinator 195˙454.00


 Project objective

Our theoretical description of natural phenomena is mostly limited to the regime where the interaction among fundamental particles is sufficiently weak, making the understanding of strongly-coupled gauge theories one of the main challenges of current research in theoretical physics. This proposal aims to study the structure of form factors -- important off-shell generalizations of scattering amplitudes of great phenomenological relevance -- in the maximally supersymmetric Yang-Mills theory at all values of the coupling. Importantly, the strong- and finite-coupling regimes are made accessible by the AdS/CFT correspondence and its integrable structure, respectively. The methods required to achieve the goals of this proposal will extend in a non-trivial way the recent beautiful results in the related field of scattering amplitudes. In particular we plan to derive a precise correspondence between form factors and Wilson loops, to exploit this picture to investigate the strong-coupling regime, and to extract finite-coupling predictions for form factors in the spirit of the recent, powerful OPE approach to scattering amplitudes. Finally we will also analyze the properties of form factors under collinear factorization. This proposal includes a detailed program for the dissemination and communication of its results. The former will mostly be based on seminars and posters at major international conferences, while the latter involves a broad spectrum of outreach activities with diverse audiences ranging from primary school pupils to interested adults. In addition, the proposal includes a detailed training program for the researcher, who will be involved in training courses in scientific management and science communication, and will participate in several scientific workshops and conferences. This wide range of complementary activities is distributed in a balanced way over the duration of the fellowship to maximize the benefit for the researcher.


year authors and title journal last update
List of publications.
2020 L. Bianchi, M. Billò, F. Galvagno, A. Lerda
Emitted radiation and geometry
published pages: 75, ISSN: 1029-8479, DOI: 10.1007/jhep01(2020)075
Journal of High Energy Physics 2020/1 2020-04-01
2018 Bianchi, Lorenzo; Lemos, Madalena; Meineri, Marco
Line defects and radiation in $mathcal{N}=2$ theories
published pages: , ISSN: 0031-9007, DOI: 10.3204/PUBDB-2018-03909
Physical review letters 121(14), 141601 (2018). doi:10.1103/PhysRevLett.121.141601 1 2020-01-30
2019 Lorenzo Bianchi, Andreas Brandhuber, Rodolfo Panerai, Gabriele Travaglini
Dual conformal invariance for form factors
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP02(2019)134
Journal of High Energy Physics 2019/2 2020-01-30
2019 Lorenzo Bianchi, Andreas Brandhuber, Rodolfo Panerai, Gabriele Travaglini
Form factor recursion relations at loop level
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP02(2019)182
Journal of High Energy Physics 2019/2 2020-01-30
2019 Lorenzo Bianchi
Marginal deformations and defect anomalies
published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.100.126018
Physical Review D 100/12 2020-01-30
2018 Lorenzo Bianchi, Michelangelo Preti, Edoardo Vescovi
Exact Bremsstrahlung functions in ABJM theory
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP07(2018)060
Journal of High Energy Physics 2018/7 2020-01-30

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