Lattice QCD yields continuum-limit HQET LCDA parameters λ_B = 0.340(20) GeV and σ_B^(1) = 1.685(63) at 1 GeV, reducing total uncertainty by a factor of three.
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Continuum-extrapolated lattice QCD yields heavy-meson LCDAs with D-meson peak at y≈0.2-0.3 and HQET inverse moment λ_B=0.340(20) GeV at 1 GeV, consistent with other determinations.
A hybrid renormalization scheme removes linear divergences from baryon quasi-DAs on the lattice, producing smooth continuum distributions at multiple spacings.
Global fit of B to pi, K, D form factors from lattice QCD and LCSR yields lambda_B = 217(19) MeV with model variations and |V_ub| = 3.68(13) x 10^{-3}.
citing papers explorer
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Continuum-Limit HQET LCDAs from Lattice QCD for Tightening B Decay Uncertainties
Lattice QCD yields continuum-limit HQET LCDA parameters λ_B = 0.340(20) GeV and σ_B^(1) = 1.685(63) at 1 GeV, reducing total uncertainty by a factor of three.
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Determination of heavy meson light-cone distribution amplitudes: theoretical framework and lattice simulations
Continuum-extrapolated lattice QCD yields heavy-meson LCDAs with D-meson peak at y≈0.2-0.3 and HQET inverse moment λ_B=0.340(20) GeV at 1 GeV, consistent with other determinations.
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Hybrid Renormalization for Baryon Distribution Amplitudes from Lattice QCD in LaMET
A hybrid renormalization scheme removes linear divergences from baryon quasi-DAs on the lattice, producing smooth continuum distributions at multiple spacings.
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Determination of $B$-meson distribution amplitudes from $B\to \pi,K,D$ transition form factors
Global fit of B to pi, K, D form factors from lattice QCD and LCSR yields lambda_B = 217(19) MeV with model variations and |V_ub| = 3.68(13) x 10^{-3}.