arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.06053hep-ph
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$B_c$介子对的光子产生

Photonic production of the pair of $B_c$ mesons

A. E. Dorokhov, R. N. Faustov, A. P. Martynenko, F. A. Martynenko

摘要:

在微扰量子色动力学和相对论夸克模型的框架下,研究了光子-光子相互作用中$B_c$介子对的产生。在非相对论近似下,考虑相对论效应,构造了一对赝标和矢量$B_c$介子的产生振幅。相对论修正涉及的相对运动的重夸克的生产振幅,以及在波函数的束缚态的重夸克,考虑。给出了$B_c$介子对产生的相对论微分截面和总截面的解析表达式。在此基础上,得到了不同能量和散射角下的产生截面的数值。

英文摘要:

We study the pair production of $B_c$ mesons in the photon-photon interaction in the framework of perturbative quantum chromodynamics and the relativistic quark model. The production amplitudes of a pair of pseudoscalar and vector $B_c$ mesons are constructed in the nonrelativistic approximation and taking into account relativistic effects. Relativistic corrections related to the relative motion of heavy quarks in the production amplitude, as well as in the wave function of the bound state of heavy quarks, are taken into account. Analytical expressions are constructed for the relativistic differential and total cross sections for the pair $B_c$ meson production. Based on them, numerical values of the production cross sections are obtained for various energies and scattering angles.

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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