Photonic production of a pair of Bc mesons

被引：8

作者：

Dorokhov, A. E. ^{[1
]}

Faustov, R. N. ^{[2
]}

Martynenko, A. P. ^{[3
]}

Martynenko, F. A. ^{[3
]}

机构：

[1] BLTP, Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[2] FRC CSC RAS, Inst Cybernet & Informat Educ, Moscow 119333, Russia

[3] Samara Natl Res Univ, Samara 443086, Russia

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 01期

关键词：

ANNIHILATION;

D O I：

10.1103/PhysRevD.102.016027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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 arc obtained for various energies and scattering angles.

引用

页数：15

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