Scattering amplitudes and soft theorems in multi-flavor Galileon theories

A bstract In this paper we initiate the study of multi-flavor Galileon theories using the methods of scattering amplitudes. We explore this topic from different perspectives and extend the techniques employed so far mainly in the single-flavor case. This includes soft theorems, generalized soft theo...

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Bibliographic Details
Published in:The journal of high energy physics 2020-12, Vol.2020 (12), p.1-44, Article 56
Main Authors: Kampf, Karol, Novotný, Jiří
Format: Article
Language:English
Subjects:
Amplitudes
Classical and Quantum Gravitation
Effective Field Theories
Elementary Particles
Flavors
High energy physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scattering
Scattering Amplitudes
Spontaneous Symmetry Breaking
String Theory
Theorems
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Summary:A bstract In this paper we initiate the study of multi-flavor Galileon theories using the methods of scattering amplitudes. We explore this topic from different perspectives and extend the techniques employed so far mainly in the single-flavor case. This includes soft theorems, generalized soft theorems with non-trivial right-hand side, Galileon dualities, soft bootstrap and bonus relations. We demonstrate new properties on two examples, the multi-flavor U( N ) Galileon and the three-flavor U(2) / U(1) Galileon.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP12(2020)056