Scattering Amplitudes from Superconformal Ward Identities

We consider finite superamplitudes of N=1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them. Because of on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information. We show that in the five-...

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Detalles Bibliográficos
Autores principales: Chicherin, Dmitry, Henn, Johannes M., Sokatchev, Emery
Lenguaje:eng
Publicado: 2018
Materias:
hep-ph
Particle Physics - Phenomenology
hep-th
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.121.021602
http://cds.cern.ch/record/2312596
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author Chicherin, Dmitry
Henn, Johannes M.
Sokatchev, Emery
author_facet Chicherin, Dmitry
Henn, Johannes M.
Sokatchev, Emery
author_sort Chicherin, Dmitry
collection CERN
description We consider finite superamplitudes of N=1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them. Because of on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information. We show that in the five-particle case, the solution to the equations is uniquely fixed by the expected analytic behavior. We apply the method to a nonplanar two-loop five-particle integral.
id cern-2312596
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-23125962023-03-14T17:24:19Zdoi:10.1103/PhysRevLett.121.021602http://cds.cern.ch/record/2312596engChicherin, DmitryHenn, Johannes M.Sokatchev, EmeryScattering Amplitudes from Superconformal Ward Identitieshep-phParticle Physics - Phenomenologyhep-thParticle Physics - TheoryWe consider finite superamplitudes of N=1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them. Because of on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information. We show that in the five-particle case, the solution to the equations is uniquely fixed by the expected analytic behavior. We apply the method to a nonplanar two-loop five-particle integral.We consider finite superamplitudes of N=1 matter, and use superconformal symmetry to derive powerful first-order differential equations for them. Due to on-shell collinear singularities, the Ward identities have an anomaly, which is obtained from lower-loop information. We show that in the five-particle case, the solution to the equations is uniquely fixed by the expected analytic behavior. We apply the method to a non-planar two-loop five-particle integral.arXiv:1804.03571CERN-TH-2018-069LAPTH-012/18MPP-2018-42MITP/18-24LAPTH-012-18MITP-18-24oai:cds.cern.ch:23125962018-04-10
spellingShingle hep-ph
Particle Physics - Phenomenology
hep-th
Particle Physics - Theory
Chicherin, Dmitry
Henn, Johannes M.
Sokatchev, Emery
Scattering Amplitudes from Superconformal Ward Identities
title Scattering Amplitudes from Superconformal Ward Identities
title_full Scattering Amplitudes from Superconformal Ward Identities
title_fullStr Scattering Amplitudes from Superconformal Ward Identities
title_full_unstemmed Scattering Amplitudes from Superconformal Ward Identities
title_short Scattering Amplitudes from Superconformal Ward Identities
title_sort scattering amplitudes from superconformal ward identities
topic hep-ph
Particle Physics - Phenomenology
hep-th
Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevLett.121.021602
http://cds.cern.ch/record/2312596
work_keys_str_mv AT chicherindmitry scatteringamplitudesfromsuperconformalwardidentities
AT hennjohannesm scatteringamplitudesfromsuperconformalwardidentities
AT sokatchevemery scatteringamplitudesfromsuperconformalwardidentities

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