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arXiv 1012.5753hep-ph
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B介子衰变中的粲夸克碎裂

Charmed quark fragmentation in B-mesons decays

Alexey Novoselov

摘要:

众所周知,在低能时,非碎裂效应对粲粒子的产生有很大的贡献。在$B$ -介子衰变的粲产生中,这些贡献来自于来自$B$ -介子的轻价夸克的参与,并且可以很容易地唯象地描述。这些贡献影响了$D$ -介子谱,并从本质上改变了不同$D$ -介子态的产额比。

英文摘要:

It is well known that large nonfragmentational contributions to inclusive production of charmed particles appear at low energies. In the case of charm production in $B$-meson decays these contributions arise from the participation of the light valent quark from the $B$-meson and can be easily described phenomenologically. These contributions affect $D$-meson spectra and essentially change ratios between yields of different $D$-meson states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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