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arXiv · 1911.12531

Next-to-leading order QCD corrections to the production of $B_c$ and $B_c^*$ through $W^+$-boson decays

Xu-Chang Zheng·Chao-Hsi Chang·Xing-Gang Wu·Jun Zeng·Xu-Dong Huang
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Abstract

In this paper, we calculate the total decay widths for the $W^+$-boson decays, $W^+ \to B_c+b+\bar{s}+X$ and $W^+ \to B^*_c+b+\bar{s}+X$, up to next-to-leading order (NLO) accuracy within the framework of the nonrelativistic QCD theory. Both the fixed-order and the fragmentation approaches are adopted to do the calculation. Differential decay widths $d\Gamma/dz$ and $d\Gamma/ds_1$ are also given. We find that the NLO corrections are significant in those two $W^+$ decay channels. Our numerical results show that at the LHC, there are about $7.03\times 10^4$ $B_c$-meson events and $5.10\times 10^4$ $B^*_c$-meson events to be produced via the $W^+$-boson decays per operation year.

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Xu-Chang Zheng, Chao-Hsi Chang, Xing-Gang Wu, Jun Zeng, Xu-Dong Huang. 2019-11-28. Next-to-leading order QCD corrections to the production of $B_c$ and $B_c^*$ through $W^+$-boson decays. https://doi.org/10.1103/physrevd.101.034029

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