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Investigations into light-front interactions for massless fields (I): Non-constructibility of higher spin quartic amlplitudes
University of Borås, Faculty of Textiles, Engineering and Business.
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 12, 134- p., 134Article in journal (Refereed) Published
Abstract [en]

The dynamical commutators of the light-front Poincar{\'e} algebra yield first order differential equations in the $p^+$ momenta for the interaction vertex operators. The homogeneous solution to the equation for the quartic vertex is studied. Consequences as regards the constructibility assumption of quartic higher spin amplitudes from cubic amplitudes are discussed. The existence of quartic contact interactions unrelated to cubic interactions by Poincar{\'e} symmetry indicates that the higher spin S-matrix is not constructible. Thus quartic amplitude based no-go results derived by BCFW recursion for Minkowski higher spin massless fields may be circumvented.

Place, publisher, year, edition, pages
2016. Vol. 12, 134- p., 134
Keyword [en]
High spin symmetry, Higher spin gravity, Scattering amplitudes
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:hb:diva-11755DOI: 10.1007/JHEP12(2016)134OAI: oai:DiVA.org:hb-11755DiVA: diva2:1063781
Available from: 2017-01-11 Created: 2017-01-11 Last updated: 2017-01-11Bibliographically approved

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