Photonic production of a pair of $B_c$ mesonsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 28 октября 2020 г.
Аннотация:We study the pair production of Bc mesons in the photon-photon interaction in the framework ofperturbative quantum chromodynamics and the relativistic quark model. The production amplitudes of apair of pseudoscalar and vector Bc mesons are constructed in the nonrelativistic approximation and takinginto account relativistic effects. Relativistic corrections related to the relative motion of heavy quarks in theproduction amplitude, as well as in the wave function of the bound state of heavy quarks, are taken intoaccount. Analytical expressions are constructed for the relativistic differential and total cross sections forthe pair Bc meson production. Based on them, numerical values of the production cross sections areobtained for various energies and scattering angles.