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- W2783705889 abstract "We derive the ${k}_{T}$ resummation for doubly heavy-flavored ${B}_{c}$ meson decays by including the charm quark mass effect into the known formula for a heavy-light system. The resultant Sudakov factor is employed in the perutrbative QCD study of the ``golden channel'' ${B}_{c}^{+}ensuremath{rightarrow}J/ensuremath{psi}{ensuremath{pi}}^{+}$. With a reasonable model for the ${B}_{c}$ meson distribution amplitude, which maintains approximate on-shell conditions of both the partonic bottom and charm quarks, it is observed that the imaginary piece of the ${B}_{c}ensuremath{rightarrow}J/ensuremath{psi}$ transition form factor appears to be power suppressed, and the ${B}_{c}^{+}ensuremath{rightarrow}J/ensuremath{psi}{ensuremath{pi}}^{+}$ branching ratio is not lower than ${10}^{ensuremath{-}3}$. The above improved perturbative QCD formalism is applicable to ${B}_{c}$ meson decays to other charmonia and charmed mesons." @default.
- W2783705889 created "2018-01-26" @default.
- W2783705889 creator A5030631292 @default.
- W2783705889 creator A5069659037 @default.
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- W2783705889 date "2018-06-06" @default.
- W2783705889 modified "2023-10-18" @default.
- W2783705889 title "Improved perturbative QCD formalism for <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>B</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> meson decays" @default.
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- W2783705889 doi "https://doi.org/10.1103/physrevd.97.113001" @default.
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