Inclusive hc production and energy spectrum from e+e− annihilation at a super B factory
Inclusive hc production and energy spectrum from e+e− annihilation at a super B factory
复制标题
超级 B 工厂的 e( ) e(-) 湮灭的包含 h(c) 产量和能谱
DOI:
10.1103/physrevd.98.014039
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发表时间:
2018-01
期刊:
影响因子:
--
通讯作者:
Ruilin Zhu
中科院分区:
文献类型:
--
作者:
Qing-Feng Sun;Yu Jia;Xiaohui Liu;Ruilin Zhu
We calculate the next-to-leading order (NLO) radiative correction to the color-octet hc inclusive production in eþe− annihilation at a super B factory, within the nonrelativistic QCD factorization framework.TheanalyticexpressionfortheNLOshort-distancecoefficient(SDC)accompanyingthecoloroctet production operator Ohc 8 ð1S0Þis obtained after summing both virtual and real corrections. The size of NLO correction for the color-octet production channel is found to be positive and substantial. The NLO prediction to the hc energy spectrum is plagued with unphysical end-point singularity. With the aid of the soft-collinear effective theory, those large end-point logarithms are resummed to the next-to-leading logarithmic (NLL) accuracy. Consequently, further supplemented with the nonperturbative shape function, we obtain the well-behaved predictions for the hc energy spectrum in the entire kinematic range, which awaits examination by the forthcoming Belle II experiment..
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DOI:
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发表时间:
--
期刊:
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影响因子:
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作者:
通讯作者:
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影响因子:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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影响因子:
5
作者:
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通讯作者:
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影响因子:
5
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通讯作者:
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