Form factors, spectral and Källén-Lehmann representation in nonlocal quantum gravity

Abstract We discuss the conical region of convergence of exponential and asymptotically polynomial form factors and their integral representations. Then, we calculate the spectral representation of the propagator of nonlocal theories with entire form factors, in particular, of the above type. The sp...

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Bibliographic Details
Main Authors: Fabio Briscese, Gianluca Calcagni, Leonardo Modesto, Giuseppe Nardelli
Format: Article
Language:English
Published: SpringerOpen 2024-08-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP08(2024)204
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