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• W2034642142 abstract "We calculate the $stackrel{ensuremath{rightarrow}}{B}{D}^{(*)}$ form factors in the heavy-quark and large-recoil limits in the perturbative QCD framework based on the ${k}_{T}$ factorization theorem, assuming the hierachy ${M}_{B}ensuremath{gg}{M}_{{D}^{(*)}}ensuremath{gg}overline{ensuremath{Lambda}},$ with the B meson mass ${M}_{B},$ the ${D}^{(*)}$ meson mass ${M}_{{D}^{(*)}},$ and the heavy meson and heavy quark mass difference $overline{ensuremath{Lambda}}.$ The qualitative behavior of the light-cone ${D}^{(*)}$ meson wave function and the associated Sudakov resummation are derived. The leading-power contributions to the $stackrel{ensuremath{rightarrow}}{B}{D}^{(*)}$ form factors, characterized by the scale $overline{ensuremath{Lambda}}sqrt{{M}_{B}{/M}_{{D}^{(*)}}},$ respect the heavy-quark symmetry. The next-to-leading-power corrections in ${1/M}_{B}$ and ${1/M}_{{D}^{(*)}},$ characterized by a scale larger than $sqrt{overline{ensuremath{Lambda}}{M}_{B}},$ are estimated to be less than 20%. The ${D}^{(*)}$ meson wave function is determined from the fit to the observed $stackrel{ensuremath{rightarrow}}{B}{D}^{(*)}lensuremath{nu}$ decay spectrum, which can be employed to make predictions for nonleptonic decays, such as $stackrel{ensuremath{rightarrow}}{B}{D}^{(*)}ensuremath{pi}(ensuremath{rho}).$" @default.
• W2034642142 created "2016-06-24" @default.
• W2034642142 creator A5004665401 @default.
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• W2034642142 date "2003-03-31" @default.
• W2034642142 modified "2023-10-18" @default.
• W2034642142 title "<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mi>*</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>form factors in perturbative QCD" @default.
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• W2034642142 doi "https://doi.org/10.1103/physrevd.67.054028" @default.
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