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The B-Meson Distribution Amplitude in QCD

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arxiv hep-ph/0309330 v1 pith:WOZI2WUG submitted 2003-09-29 hep-ph

The B-Meson Distribution Amplitude in QCD

classification hep-ph
keywords amplitudedistributionb-mesonb-decayscalculatedestimateexclusiveintegral
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The B-meson distribution amplitude is calculated using QCD sum rules. In particular we obtain an estimate for the integral relevant to exclusive B-decays \lambda_B = 460 \pm 110 MeV at the scale 1 GeV. A simple QCD-motivated parametrization of the distribution amplitude is suggested.

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Forward citations

Cited by 7 Pith papers

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

  1. Three-particle di-light-cone distribution amplitudes of the $B$-meson in heavy-quark effective theory

    hep-ph 2026-06 unverdicted novelty 7.0

    The authors identify eight independent three-particle DLCDAs of the B-meson, perform their complete Lorentz decomposition in definite-twist basis, obtain tree-level relations for integrals and moments from operator id...

  2. Light-cone sum rules with $B$-meson distribution amplitudes for the $B\to p$ form factors in $B$-mesogenesis models

    hep-ph 2026-03 conditional novelty 7.0

    New light-cone sum-rule form factors predict B+→p + dark-antiproton rates and lower limits showing that Belle II/BaBar bounds must reach 10⁻⁸–10⁻⁷ for a decisive test of B-mesogenesis.

  3. SCET sum rules for $B\to D_1(2420)$ and $B\to D_1'(2430)$ form factors at next-to-leading order

    hep-ph 2026-07 conditional novelty 6.0

    First O(αs) SCET light-cone sum rules for B o D1 and B o D1' form factors yield R(D1)=0.070+0.028-0.018 and R(D1')=0.159+0.032-0.025.

  4. Semileptonic $B_q$ decays to heavy tensor mesons

    hep-ph 2026-04 unverdicted novelty 6.0

    Form factors for B_q to J^P=2^+ tensor meson semileptonic decays are computed via light-cone QCD sum rules with external B state, yielding SM decay rates and LFU test ratios.

  5. $\bar{B}_{s,d}^{0} \to J/\psi \mu^{+}\mu^{-}$ Decays in QCD Factorization

    hep-ph 2025-10 unverdicted novelty 6.0

    Computes branching ratios of order 10^{-10} for Bs and 10^{-11} for Bd decays after NLO vertex corrections in QCD factorization, plus dimuon distributions and J/psi polarization.

  6. Determination of $B$-meson distribution amplitudes from $B\to \pi,K,D$ transition form factors

    hep-ph 2025-12 conditional novelty 5.0

    A global fit to B→π,K,D lattice form factors and B→πℓν data yields λ_B=217(19)+82−17 MeV and |V_ub|=3.68(13)+0−1×10−3.

  7. Determination of $B$-meson distribution amplitudes from $B\to \pi,K,D$ transition form factors

    hep-ph 2025-12 unverdicted novelty 4.0

    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}.