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Lattice Results for Low Moments of Light Meson Distribution Amplitudes

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arxiv 1011.5906 v1 pith:BNUA5HLG submitted 2010-11-25 hep-lat

Lattice Results for Low Moments of Light Meson Distribution Amplitudes

R. Arthur , P.A. Boyle , D. Br\"ommel , M.A. Donnellan , J.M. Flynn , A. J\"uttner , T.D. Rae , C.T.C. Sachrajda This is my paper
classification hep-lat
keywords amplitudesdistributionlatticemesonsmomentsablebreakingcalculate
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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As part of the UKQCD and RBC collaborations' N_f=2+1 domain-wall fermion phenomenology programme, we calculate the first two moments of the light-cone distribution amplitudes of the pseudoscalar mesons pion and kaon and the (longitudinally-polarised) vector mesons rho, K-star and phi. We obtain the desired quantities with good precision and are able to discern the expected quark-mass dependence of SU(3)-flavour breaking effects. An important ingredient of the calculation is the nonperturbative renormalisation of lattice operators using the RI'/MOM technique.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Pion Distribution Amplitudes from Functional QCD

    hep-ph 2026-07 conditional novelty 7.0

    fRG-based functional QCD plus LaMET yields a saturated pion quasi-DA at Pz=4.5 GeV and a second moment ⟨ξ²⟩π=0.267, smaller than lattice-LaMET and consistent with other nonperturbative methods.

  2. Pion Distribution Amplitudes from Functional QCD

    hep-ph 2026-07 conditional novelty 6.0

    The pion DA computed from functional QCD via LaMET has ⟨ξ²⟩_π = 0.267 (no quoted error), consistent with sum rules and DSE/BSE and 0.8σ below the lattice-LaMET value 0.300(41).

  3. Vector mesons leading-twist longitudinal distribution amplitudes and related semi-leptonic decays within QCD sum rules

    hep-ph 2026-07 conditional novelty 4.0

    New QCD sum-rule calculation gives ξ-moments up to tenth order and PLP-model distribution amplitudes for ρ, K*, φ, which are then used to recalculate D_(s)→V semileptonic observables.