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Article

Measurement of the B−c meson production fraction and asymmetry in 7 and 13 TeV pp collisions

Ratnikov F., Ustyuzhanin A., Derkach D., Boldyrev A., Maevskiy A., Kazeev N., Belavin V., Borisyak M., Guschin M., Ryzhikov A., Arzymatov K., Chekalina V., Баранов А. С.

The production fraction of the B−c meson with respect to the sum of B− and B¯0 mesons is measured in both 7 and 13 TeV center-of-mass energy pppp collisions produced by the Large Hadron Collider (LHC), using the LHCb detector. The rate, approximately 3.7 per mille, does not change with energy, but shows a transverse momentum dependence. The B−c − Bc+ production asymmetry is also measured, and is consistent with zero within the determined statistical and systematic uncertainties of a few percent.