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Geometric soft theorems
Cheung, Clifford ;
Helset
,
Andreas
; Parra-Martinez, Julio
The journal of high energy physics, 2022-04, Vol.2022 (4), p.11-33, Article 11
[Periódico revisado por pares]
Berlin/Heidelberg: Springer Berlin Heidelberg
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Título:
Geometric soft theorems
Autor:
Cheung, Clifford
;
Helset
,
Andreas
;
Parra-Martinez, Julio
Assuntos:
Classical and Quantum Gravitation
;
Coordinate transformations
;
Differential and Algebraic Geometry
;
Dilatons
;
Effective Field Theories
;
Elementary Particles
;
Geometry
;
High energy physics
;
Physics
;
Physics and Astronomy
;
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
;
Quantum Field Theories
;
Quantum Field Theory
;
Quantum Physics
;
Regular Article - Theoretical Physics
;
Relativity Theory
;
Scalars
;
Scattering amplitude
;
Scattering Amplitudes
;
Sigma Models
;
String Theory
;
Symmetry
;
Theorems
É parte de:
The journal of high energy physics, 2022-04, Vol.2022 (4), p.11-33, Article 11
Notas:
SC0011632
USDOE Office of Science (SC), High Energy Physics (HEP)
Descrição:
A bstract We derive a universal soft theorem for every scattering amplitude with at least one massless particle in an arbitrary theory of scalars. Our results follow from the geometry of field space and are valid for any choice of mass spectrum, potential terms, and higher-derivative interactions. For a vanishing potential, the soft limit of every amplitude is equal to the field-space covariant derivative of an amplitude with one fewer particle. Furthermore, the Adler zero and the dilaton soft theorem are special cases of our results. We also discuss more exotic scenarios in which the soft limit is non-trivial but still universal. Last but not least, we derive new theorems for multiple-soft limits which directly probe the field-space curvature, as well as on-shell recursion relations applicable to two-derivative scalar field theories exhibiting no symmetries whatsoever.
Editor:
Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma:
Inglês
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