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Equivalence of meson scattering amplitudes in strong coupling lattice and flat space string theory

Adi Armoni Orcid Logo, Edwin Ireson, Davide Vadacchino

Nuclear Physics B, Volume: 928, Pages: 72 - 92

Swansea University Author: Adi Armoni Orcid Logo

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DOI (Published version): 10.1016/j.nuclphysb.2018.01.002

Abstract

We consider meson scattering in the framework of the lattice strong coupling expansion. In particular we derive an expression for the 4-point function of meson operators in the planar limit of scalar Chromodynamics. Interestingly, in the naive continuum limit the expression coincides with an indepen...

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Published in: Nuclear Physics B
ISSN: 05503213
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa38008
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Abstract: We consider meson scattering in the framework of the lattice strong coupling expansion. In particular we derive an expression for the 4-point function of meson operators in the planar limit of scalar Chromodynamics. Interestingly, in the naive continuum limit the expression coincides with an independently known result, that of the worldline formalism. Moreover, it was argued by Makeenko and Olesen that (assuming confinement) the resulting scattering amplitude in momentum space is the celebrated expression proposed by Veneziano several decades ago. This motivates us to also use holography in order to argue that the continuum expression for the scattering amplitude is related to the result obtained from flat space string theory. Our results hint that at strong coupling and large-Nc the naive continuum limit of the lattice formalism can be related to a flat space string theory.
Keywords: lattice, string theory
College: Faculty of Science and Engineering
Start Page: 72
End Page: 92

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