Browsing by Author "Bjerrum-Bohr, Niels Emil Jannik"
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Item New factorization relations for nonlinear sigma model amplitudes(American Physical Society, 2019-02-15) Bjerrum-Bohr, Niels Emil Jannik; Gomez, Humberto; Helset, AndreasWe obtain novel factorization identities for nonlinear sigma model amplitudes using a new integrand in the Cachazo-He-Yuan double-cover prescription. We find that it is possible to write very compact relations using only longitudinal degrees of freedom. We discuss implications for on shell recursion. © 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP 3 .Item New factorization relations for Yang-Mills amplitudes(American Physical Society, 2019-01-15) Bjerrum-Bohr, Niels Emil Jannik; Damgaard, Poul Henrik; Gomez, HumbertoA double-cover extension of the scattering equation formalism of Cachazo, He, and Yuan leads us to conjecture covariant factorization formulas of n-particle scattering amplitudes in Yang-Mills theories. Evidence is given that these factorization relations are related to Berends-Giele recursions through repeated use of partial fraction identities involving linearized propagators. © 2019 authors. Published by the American Physical Society.