Production of doubly heavy baryons via Higgs boson decays

Abstract

We systematically analyzed the production of semi-inclusive doubly heavy baryons (Xi _{cc}, Xi _{bc} and Xi _{bb}) for the process H^0 rightarrow Xi _{QQ'}+ bar{Q'} + {bar{Q}} through four main Higgs decay channels within the framework of non-relativistic QCD. The contributions from the intermediate diquark states, langle ccrangle [^{1}S_{0}]_{mathbf {6}}, langle ccrangle [^{3}S_{1}]_{bar{mathbf {3}}}, langle bcrangle [^{3}S_{1}]_{bar{mathbf {3}}/ mathbf {6}}, langle bcrangle [^{1}S_{0}]_{bar{mathbf {3}}/ mathbf {6}}, langle bbrangle [^{1}S_{0}]_{mathbf {6}} and langle bbrangle [^{3}S_{1}]_{bar{mathbf {3}}}, have been taken into consideration. The differential distributions and three main sources of the theoretical uncertainties have been discussed. At the High Luminosity Large Hadron Collider, there will be about 0.43times 10^4 events of Xi _{cc}, 6.32times 10^4 events of Xi _{bc} and 0.28times 10^4 events of Xi _{bb} produced per year. There are fewer events produced at the Circular Electron Positron Collider and the International Linear Collider, about 0.26times 10^{2} events of Xi _{cc}, 3.83times 10^{2} events of Xi _{bc} and 0.17times 10^{2} events of Xi _{bb} in operation.