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High Energy Physics - Theory

arXiv:1107.5067 (hep-th)
[Submitted on 25 Jul 2011 (v1), last revised 30 Oct 2011 (this version, v2)]

Title:Harmony of Super Form Factors

Authors:Andreas Brandhuber, Omer Gurdogan, Robert Mooney, Gabriele Travaglini, Gang Yang
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Abstract:In this paper we continue our systematic study of form factors of half-BPS operators in N=4 super Yang-Mills. In particular, we extend various techniques known for amplitudes to the case of form factors, including MHV rules, recursion relations, unitarity and dual MHV rules. As an application, we present the solution of the recursion relation for split-helicity form factors. We then consider form factors of the stress-tensor multiplet operator and of its chiral truncation, and write down supersymmetric Ward identities using chiral as well as non-chiral superspace formalisms. This allows us to obtain compact formulae for families of form factors, such as the maximally non-MHV case. Finally we generalise dual MHV rules in dual momentum space to form factors.
Comments: 1+42 pages, 18 figures; v2. affiliation updated, typo fixed
Subjects: High Energy Physics - Theory (hep-th)
Report number: QMUL-11-08, NSF-KITP-11-146
Cite as: arXiv:1107.5067 [hep-th]
  (or arXiv:1107.5067v2 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.1107.5067
Journal reference: JHEP 1110:046,2011
Related DOI: https://doi.org/10.1007/JHEP10%282011%29046

Submission history

From: Gang Yang [view email]
[v1] Mon, 25 Jul 2011 20:27:04 UTC (471 KB)
[v2] Sun, 30 Oct 2011 16:27:32 UTC (471 KB)
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