The generating functional W[J] of Euclidean correlators of twist-2 operators in SU(N) Yang-Mills theory admits the 't Hooft large-N expansion W[J]=W_{sphere}[J]+W_{torus}[J]. Nonperturbatively, W_{sphere}[J] is a sum of tree diagrams involving glueball propagators and vertices, while W_{torus}[J] is a sum of glueball one-loop diagrams. Moreover, it has been predicted that W_{torus}[J] should admit the structure of the logarithm of a functional determinant summing glueball one-loop diagrams. We work out in a closed form the ultraviolet (UV) asymptotics of W_{sphere}[J,λ]∼W_{asym sphere}[J,λ] and W_{torus}[J,λ]∼W_{asym torus}[J,λ] in the coordinate representation as all the coordinates of the correlators are uniformly rescaled by a factor λ→0. Remarkably, we verify the above prediction that W_{asym torus}[J,λ] -- being asymptotic in the UV to W_{torus}[J,λ] -- admits the structure of the logarithm of a functional determinant as well. Hence, the computation above sets strong UV asymptotic constraints on the nonperturbative solution of large-N YM theory and it may be a pivotal guide for the search of such a solution.
UV asymptotics of n-point correlators of twist-2 operators in SU(N) Yang-Mills theory / Bochicchio, Marco; Papinutto, Mauro; Scardino, Francesco. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 108:5(2023), pp. 1-32. [10.1103/PhysRevD.108.054023]
UV asymptotics of n-point correlators of twist-2 operators in SU(N) Yang-Mills theory
Bochicchio, Marco
;Papinutto, Mauro
;Scardino, Francesco
2023
Abstract
The generating functional W[J] of Euclidean correlators of twist-2 operators in SU(N) Yang-Mills theory admits the 't Hooft large-N expansion W[J]=W_{sphere}[J]+W_{torus}[J]. Nonperturbatively, W_{sphere}[J] is a sum of tree diagrams involving glueball propagators and vertices, while W_{torus}[J] is a sum of glueball one-loop diagrams. Moreover, it has been predicted that W_{torus}[J] should admit the structure of the logarithm of a functional determinant summing glueball one-loop diagrams. We work out in a closed form the ultraviolet (UV) asymptotics of W_{sphere}[J,λ]∼W_{asym sphere}[J,λ] and W_{torus}[J,λ]∼W_{asym torus}[J,λ] in the coordinate representation as all the coordinates of the correlators are uniformly rescaled by a factor λ→0. Remarkably, we verify the above prediction that W_{asym torus}[J,λ] -- being asymptotic in the UV to W_{torus}[J,λ] -- admits the structure of the logarithm of a functional determinant as well. Hence, the computation above sets strong UV asymptotic constraints on the nonperturbative solution of large-N YM theory and it may be a pivotal guide for the search of such a solution.File | Dimensione | Formato | |
---|---|---|---|
Bochicchio_UV-asymptotics_2023.pdf
accesso aperto
Note: Articolo su rivista
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Creative commons
Dimensione
488.62 kB
Formato
Adobe PDF
|
488.62 kB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.