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A note on connected formula for form factors

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He, Song [ITP, CAS, Beijing] Liu, Zhengwen [UCL]

In this note we study the connected prescription, originally derived from Witten's twistor string theory, for tree-level form factors in N=4 super-Yang-Mills theory. The construction is based on the recently proposed four-dimensional scattering equations with nn massless on-shell states and one off-shell state, which we expect to work for form factors of general operators. To illustrate the universality of the prescription, we propose compact formulas for super form factors with chiral stress-tensor multiplet operator, and bosonic ones with scalar operators Tr(ϕ^m) for arbitrary m.

Document type Article de périodique (Journal article)
Access type Accès libre
Publication date 2016
Language Anglais
Journal information "Journal of High Energy Physics" - Vol. 2016, no.12, p. 1-14 (2016)
Peer reviewed yes
Publisher Institute of Physics (Heidelberg)
issn 1029-8479
e-issn 1029-8479
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
Keywords Form Factor ; Supersymmetric Gauge Theory ; Scattering Amplitude
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Bibliographic reference He, Song ; Liu, Zhengwen. A note on connected formula for form factors. In: Journal of High Energy Physics, Vol. 2016, no.12, p. 1-14 (2016)
Permanent URL http://hdl.handle.net/2078.1/178803