Pion and kaon distribution amplitudes up to twist-3 in the QCD instanton vacuum

Arthur Kock; Ismail Zahed

doi:10.1103/PhysRevD.104.116028

Pion and kaon distribution amplitudes up to twist-3 in the QCD instanton vacuum

Arthur Kock
, Ismail Zahed

Physics and Astronomy

Stony Brook University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We discuss the pion and kaon distribution amplitudes up to twist-3 in the context of the random instanton vacuum (RIV). We construct explicitly the pertinent quasipion and quasikaon distributions in the RIV, and analyze them in leading order in the diluteness factor, at a resolution fixed by the inverse instanton size. The distribution amplitudes (DA) follow from the large momentum limit. The results at higher resolution are discussed using QCD evolution, and compared to their asymptotic limits and some lattice results.

Original language	English
Article number	116028
Journal	Physical Review D
Volume	104
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.104.116028
State	Published - Dec 1 2021

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title = "Pion and kaon distribution amplitudes up to twist-3 in the QCD instanton vacuum",

abstract = "We discuss the pion and kaon distribution amplitudes up to twist-3 in the context of the random instanton vacuum (RIV). We construct explicitly the pertinent quasipion and quasikaon distributions in the RIV, and analyze them in leading order in the diluteness factor, at a resolution fixed by the inverse instanton size. The distribution amplitudes (DA) follow from the large momentum limit. The results at higher resolution are discussed using QCD evolution, and compared to their asymptotic limits and some lattice results.",

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AB - We discuss the pion and kaon distribution amplitudes up to twist-3 in the context of the random instanton vacuum (RIV). We construct explicitly the pertinent quasipion and quasikaon distributions in the RIV, and analyze them in leading order in the diluteness factor, at a resolution fixed by the inverse instanton size. The distribution amplitudes (DA) follow from the large momentum limit. The results at higher resolution are discussed using QCD evolution, and compared to their asymptotic limits and some lattice results.

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Pion and kaon distribution amplitudes up to twist-3 in the QCD instanton vacuum

Abstract

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