On the SU(3) Symmetry-Breaking Corrections to Meson Distribution Amplitudes

A.Lenz; V.M.Braun

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On the SU(3) Symmetry-Breaking Corrections to Meson Distribution Amplitudes

V.M.Braun, A.Lenz

High Energy Physics - Phenomenology · Submitted 23 Jul 2004

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Our conclusions essentially support the constituent quark-model picture where the momentum fraction is roughly proportional to the constituent quark mass, but the asymmetry turns out to be smaller compared to the naive quark model estimates.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.35 · human participants 0.01 · controlled comparison 0.13 · randomized assignment 0.01 · states quantitative result 0.13 · compares with prior results 0.95 · mentions code or data availability 0.02.

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We consider constraints on the momentum fraction of the $K$ and $K^*$ meson carried by the strange quark that follow from exact operator identities, similar to those for the divergence of the quark part of the QCD energy-momentum tensor. The existing QCD sum rule estimates are reanalyzed in this context. Our conclusions essentially support the constituent quark-model picture where the momentum fraction is roughly proportional to the constituent quark mass, but the asymmetry turns out to be smaller compared to the naive quark model estimates. As a byproduct of this study, we calculate the SU(3)-breaking quark-antiquark-gluon matrix elements that determine the leading conformal spin contributions to the asymmetry in twist-four distribution amplitudes of strange mesons $K$ and $K^*$, and also update the estimate for the SU(3) breaking for the quark-antiquark-gluon vacuum condensate.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We consider constraints on the momentum fraction of the $K$ and $K^*$ meson carried by the strange quark that follow from exact operator identities, similar to those for the divergence of the quark part of the QCD energy-momentum tensor.	contribution 0.89	0.48	0.06	asserted 0.80
s1	The existing QCD sum rule estimates are reanalyzed in this context.	method 0.61	0.68	0.02	asserted 0.80
s2	Our conclusions essentially support the constituent quark-model picture where the momentum fraction is roughly proportional to the constituent quark mass, but the asymmetry turns out to be smaller compared to the naive quark model estimates.	interpretation 0.53	0.89	0.85	asserted 0.76
s3	As a byproduct of this study, we calculate the SU(3)-breaking quark-antiquark-gluon matrix elements that determine the leading conformal spin contributions to the asymmetry in twist-four distribution amplitudes of strange mesons $K$ and $K^*$, and also update the estimate for the SU(3) breaking for the quark-antiquark-gluon vacuum condensate.	contribution 0.55	0.95	0.09	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from analysis of existing data 0.61.

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Original abstract

We consider constraints on the momentum fraction of the $K$ and $K^*$ meson carried by the strange quark that follow from exact operator identities, similar to those for the divergence of the quark part of the QCD energy-momentum tensor. The existing QCD sum rule estimates are reanalyzed in this context. Our conclusions essentially support the constituent quark-model picture where the momentum fraction is roughly proportional to the constituent quark mass, but the asymmetry turns out to be smaller compared to the naive quark model estimates. As a byproduct of this study, we calculate the SU(3)-breaking quark-antiquark-gluon matrix elements that determine the leading conformal spin contributions to the asymmetry in twist-four distribution amplitudes of strange mesons $K$ and $K^*$, and also update the estimate for the SU(3) breaking for the quark-antiquark-gluon vacuum condensate.

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Cited by 11 Pith papers

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12 arXiv papers cite this in 16 sentences

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Here we quote the recent numerical results [ref] as [equation] where the values are taken at $μ=1$ GeV.

Radiative charmless B_{(s)}\to V \gamma and B_{(s)}\to A \gamma decays in pQCD approach · Light-cone distribution amplitudes of light vector mesons · 1.00
Here we quote the recent numerical results [ref] as [equation] where the values are taken at $μ=1$ GeV.

Transition form factors of B decays into p-wave axial-vector mesons in the perturbative QCD approach · Formalism of the PQCD approach and Inputs · 1.00

Compares with it 1 paper

The values for those moments and Gegenbauer moments by various methods such as QCD sum rules (QCD SR) [ref] , LQCD [ref] , AdS/QCD [ref] and NLChQM [ref] are listed.

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