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- W2034604136 abstract "In this paper the next-to-leading order (NLO) corrections to $B_c$ meson exclusive decays to S-wave charmonia and light pseudoscalar or vector mesons, i.e. $pi$, $K$, $rho$, and $K^*$, are performed within non-relativistic (NR) QCD approach. The non-factorizable contribution is included, which is absent in traditional naive factorization (NF). And the theoretical uncertainties for their branching ratios are reduced compared with that of direct tree level calculation. Numerical results show that NLO QCD corrections markedly enhance the branching ratio with a K factor of 1.75 for $B_{c}^{pm}to eta_{c} pi^{pm}$ and 1.31 for $B_{c}^{pm}to J/psi pi^{pm}$. In order to investigate the asymptotic behavior, the analytic form is obtained in the heavy quark limit, i.e. $m_b to infty$. We note that annihilation topologies contribute trivia in this limit, and the corrections at leading order in $z= m_c/m_b$ expansion come from form factors and hard spectator interactions. At last, some related phenomenologies are also discussed." @default.
- W2034604136 created "2016-06-24" @default.
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- W2034604136 date "2014-02-07" @default.
- W2034604136 modified "2023-10-15" @default.
- W2034604136 title "<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>exclusive decays to charmonium and a light meson at next-to-leading order accuracy" @default.
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- W2034604136 doi "https://doi.org/10.1103/physrevd.89.034008" @default.
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