论文标题
$ b_c $梅森对的光子生产
Photonic production of the pair of $B_c$ mesons
论文作者
论文摘要
我们研究了在扰动量子染色体动力学和相对论夸克模型的框架中，在光子 - 光子相互作用中的$ b_c $介子的生产。一对伪尺度和矢量$ b_c $介子的生产幅度是在非依次近似中构建的，并考虑了相对论效应。考虑到与重量夸克在生产振幅中以及重型夸克的结合状态的波函数中相对运动有关的相对论校正。分析表达式是针对对$ b_c $梅森生产的相对论差异和总横截面构建的。基于它们，为各种能量和散射角度获得了生产横截面的数值。
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.
