Large-N QCD and the Veneziano amplitude

We consider four scalar mesons scattering in large-Nc QCD. Using the worldline formalism we show that the scattering amplitude can be written as a formal sum over Wilson loops. The AdS/CFT correspondence maps this sum into a sum over string worldsheets in a confining background. We then argue that f...

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Main Author: Adi Armoni
Format: Article
Language:English
Published: Elsevier 2016-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316300168
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spelling doaj-5c1f32705f0d452c930bdb17f949c6fa2020-11-25T00:36:42ZengElsevierPhysics Letters B0370-26931873-24452016-05-01756C32833110.1016/j.physletb.2016.03.045Large-N QCD and the Veneziano amplitudeAdi ArmoniWe consider four scalar mesons scattering in large-Nc QCD. Using the worldline formalism we show that the scattering amplitude can be written as a formal sum over Wilson loops. The AdS/CFT correspondence maps this sum into a sum over string worldsheets in a confining background. We then argue that for well separated mesons the sum is dominated by flat space configurations. Under additional assumptions about the dual string path integral we obtain the Veneziano amplitude.http://www.sciencedirect.com/science/article/pii/S0370269316300168
collection DOAJ
language English
format Article
sources DOAJ
author Adi Armoni
spellingShingle Adi Armoni
Large-N QCD and the Veneziano amplitude
Physics Letters B
author_facet Adi Armoni
author_sort Adi Armoni
title Large-N QCD and the Veneziano amplitude
title_short Large-N QCD and the Veneziano amplitude
title_full Large-N QCD and the Veneziano amplitude
title_fullStr Large-N QCD and the Veneziano amplitude
title_full_unstemmed Large-N QCD and the Veneziano amplitude
title_sort large-n qcd and the veneziano amplitude
publisher Elsevier
series Physics Letters B
issn 0370-2693
1873-2445
publishDate 2016-05-01
description We consider four scalar mesons scattering in large-Nc QCD. Using the worldline formalism we show that the scattering amplitude can be written as a formal sum over Wilson loops. The AdS/CFT correspondence maps this sum into a sum over string worldsheets in a confining background. We then argue that for well separated mesons the sum is dominated by flat space configurations. Under additional assumptions about the dual string path integral we obtain the Veneziano amplitude.
url http://www.sciencedirect.com/science/article/pii/S0370269316300168
work_keys_str_mv AT adiarmoni largenqcdandthevenezianoamplitude
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