Measurement of the B+ production cross section in p-pbar collisions at sqrt(s) = 1960 GeV

Abstract

We present a new measurement of the $B^{+}$ meson differential cross section $d\ddot{I}ƒ/d{p}_T$ at $\sqrt{s}=1960$ GeV. The data correspond to an integrated luminosity of 739pb${}^{-1}$ collected with the upgraded CDF detector (CDF II) at the Fermilab Tevatron collider. $B^{+}$ candidates are reconstructed through the decay $B^{+}\to J/\ddot{I}ˆK^{+}$, with $J/\ddot{I}ˆ\to \hat{I}{¼}^{+}\hat{I}{¼}^{-}$. The integrated cross section for producing $B^{+}$ mesons with $p_T\ge 6$ GeV/c and $|y|\le 1$ is measured to be $2.78\pm 0.24\hat{I}¼$b

28 pages, 3 tables, 10 figures Submitted to Phys. Rev. D