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Ward identities for superamplitudes.
- Source :
-
Journal of High Energy Physics . Jun2024, Vol. 2024 Issue 6, p1-16. 16p. - Publication Year :
- 2024
-
Abstract
- We introduce Ward identities for superamplitudes in D-dimensional N -extended supergravities. These identities help to clarify the relation between linearized superinvariants and superamplitudes. The solutions of these Ward identities for an n-partice superamplitude take a simple universal form for half BPS and non-BPS amplitudes. These solutions involve arbitrary functions of spinor helicity and Grassmann variables for each of the n superparticles. The dimension of these functions at a given loop order is exactly the same as the dimension of the relevant superspace Lagrangians depending on half-BPS or non-BPS superfields, given by (D − 2)L + 2 − N or (D − 2)L + 2 − 2 N , respectively. This explains why soft limits predictions from superamplitudes and from superspace linearized superinvariants agree. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SUPERGRAVITY
*SUPERSYMMETRY
*FORECASTING
Subjects
Details
- Language :
- English
- ISSN :
- 11266708
- Volume :
- 2024
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of High Energy Physics
- Publication Type :
- Academic Journal
- Accession number :
- 178443203
- Full Text :
- https://doi.org/10.1007/JHEP06(2024)035