Measurement of $B_c^{+}$ production in proton-proton collisions at $\sqrt{s}=8$ TeV

Abstract

Production of $B_c^{+}$ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of $2.0{\mathrm{fb}}^{-1}$ recorded by the LHCb experiment. The ratio of production cross-sections times branching fractions between the $B_c^{+}\to J/\psi {\pi }^{+}$ and $B^{+}\to J/\psi K^{+}$ decays is measured as a function of transverse momentum and rapidity in the regions $0<p_{\mathrm{T}}<20\mathrm{GeV}/c$ and $2.0<y<4.5$. The ratio in this kinematic range is measured to be $(0.683\pm 0.018\pm 0.009)\%$, where the first uncertainty is statistical and the second systematic.

17 pages, 12 figures, 1 table, published in PRL

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