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• W2773877529 abstract "We study the ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(2S)text{ }text{ }mathrm{K}$, ${ensuremath{eta}}_{c}(2S)text{ }text{ }mathrm{K}$, $ensuremath{psi}(3770)text{ }text{ }mathrm{K}$ decays with perturbative QCD approach based on ${k}_{T}$ factorization. The new orbitally excited charmonium distribution amplitudes $ensuremath{psi}(1{^{3}D}_{1})$ based on the Schrodinger wave function of the $n=1$, $l=2$ state for the harmonic-oscillator potential are employed. By using the corresponding distribution amplitudes, we calculate the branching ratio of ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(2S)text{ }text{ }mathrm{K}$, ${ensuremath{eta}}_{c}(2S)text{ }text{ }mathrm{K}$, $ensuremath{psi}(3770)text{ }text{ }mathrm{K}$ decays and the form factors ${A}_{0,1,2}$ and $V$ for the transition ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(1{^{3}D}_{1})$. We obtain the branching ratio of both ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(2S)text{ }text{ }mathrm{K}$ and ${B}_{c}ensuremath{rightarrow}{ensuremath{eta}}_{c}(2S)text{ }text{ }mathrm{K}$ are at the order of ${10}^{ensuremath{-}5}$. The effects of two sets of the S-D mixing angle $ensuremath{theta}=ensuremath{-}12ifmmode^circelsetextdegreefi{}$ and $ensuremath{theta}=27ifmmode^circelsetextdegreefi{}$ for the decay ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(3770)text{ }text{ }mathrm{K}$ are studied first in this paper. Our calculations show that the branching ratio of the decay ${B}_{c}ensuremath{rightarrow}ensuremath{psi}(3770)text{ }text{ }mathrm{K}$ can be raised from the order of ${10}^{ensuremath{-}6}$ to the order of ${10}^{ensuremath{-}5}$ at the mixing angle $ensuremath{theta}=ensuremath{-}12ifmmode^circelsetextdegreefi{}$, which can be tested by the running LHC-b experiments." @default.
• W2773877529 created "2017-12-22" @default.
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• W2773877529 date "2018-05-16" @default.
• W2773877529 modified "2023-10-14" @default.
• W2773877529 title "Study of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub><mml:mo stretchy=false>→</mml:mo><mml:mi>ψ</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mn>2</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy=false>)</mml:mo><mml:mi>K</mml:mi></mml:mrow></mml:math>,<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml…" @default.
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• W2773877529 doi "https://doi.org/10.1103/physrevd.97.096008" @default.
• W2773877529 hasPublicationYear "2018" @default.
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