Invariant mass distribution of the selected $ B ^\pm \rightarrow { J \mskip -3mu/\mskip -2mu\psi \mskip 2mu} K^\pm$ \ candidates for one bin {\;\; } ($5.0< p_{\rm T}<5.5 {\mathrm{ Ge V /}c} $). The result of the fit to the model described in the text is superimposed.

Differential production cross-section as a function of the $ B ^\pm$ transverse momentum. The left plot shows the full $p_{\rm T}$ range, the right plot shows a zoom of the $p_{\rm T}$ range of $0-12$ $ {\mathrm{ Ge V /}c}$ . The histogram (left) and the open circles with error bars (right) are the measurements. The red dashed lines in both plots are the upper and lower uncertainty limits of the FONLL computation. A hadronisation fraction $f_{\bar{b}\rightarrow B^+}$ of $(40.1\pm1.3)$% [10] is assumed to fix the overall scale. The uncertainty of the FONLL computation includes the uncertainties of the $b$-quark mass, renormalisation and factorisation scales, and CTEQ 6.6 PDF.

Animated gif made out of all figures.

Differential $ B ^\pm$ \ production cross-section in bins of $ p_{\rm T}$ for $2.0<y<4.5$. The first and second quoted uncertainties are statistical and systematic, respectively.