J/ψ -π截面的高扭转修正

Acta Physica Hungarica Pub Date : 2005-10-01 DOI:10.1556/APH.24.2005.1-4.34

F. Duraes, F. Navarra, M. Nielsen

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引用次数: 0

摘要

J /ψπ→ ]]> ]]> ]]> ]]> ]]> \ 酒吧{\ rm D} {\ rm D} ^ * $, $ \ D酒吧{\ rm D} ^ * $, $ {\ rm D} \酒吧D和美元\酒吧{\ rm D} ^ * $ D $ ^ * $横截面的函数√{年代}是一个量子色动力学中的评估求和规则计算。我们发现我们的结果与基于介子交换的模型得到的J/ψπ→粲介子截面是相容的，如果使用1 GeV的截断阶。

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Higher Twist Corrections to the J/ψ–π Cross Section

The J/ψπ → ]]> ]]> ]]> ]]> ]]> \bar{\rm D}{\rm D}^*$, D$\bar{\rm D}^*$, $\bar{\rm D}$D and $\bar{\rm D}^*$D$^*$ cross sections as a function of √{s} are evaluated in a QCD sum rule calculation. We find that our results are compatible with the J/ψπ → charmed mesons cross sections obtained with models based on meson exchange if a cut-off of order of 1 GeV is used.

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Acta Physica Hungarica

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