反应ppbar -> Lambda_c-Lambda_cbar接近阈值
The reaction ppbar -> Lambda_c-Lambda_cbar close to threshold
摘要：
对阈能附近的粲产生反应反质子-质子-> antiLambda_c-Lambda_c进行了预测。计算是在介子交换框架中进行的，与我们早期通过SU（4）对称性连接两个过程对反质子-质子->反λ-λ的研究非常相似。所获得的反Lambda_c-Lambda_c产生截面为1至7 \mub的量级，即比反Lambda-Lambda的相应截面小约10倍。然而，它们比文献中其他模型计算的预测大100到1000倍。
英文摘要：
Predictions for the charm-production reaction antiproton-proton -> antiLambda_c-Lambda_c for energies near the threshold are presented. The calculations are performed in a meson-exchange framework in close analogy to our earlier study on antiproton-proton -> antiLambda-Lambda by connecting the two processes via SU(4) symmetry. The obtained antiLambda_c-Lambda_c production cross sections are in the order of 1 to 7 \mub, i.e. a factor of around 10 smaller than the corresponding cross sections for antiLambda-Lambda. However, they are 100 to 1000 times larger than predictions of other model calculations in the literature.
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。
