Study of charged particle species produced in association with neutral anti-B mesons, B- mesons, and neutral anti-B(s) mesons in proton-antiproton collisions at center of mass energy= 1.96 TeV

We study the yields of charged kaons, charged pions, and protons produced in a association with B mesons produced in proton-antiproton collisions at center of mass energy 1960 GeV using 355 pb-1 of data collected with the CDF detector at the Fermilab Tevatron. This is the first reported measurements of these yields at a hadron collider. The B mesons are reconstructed using the their semileptonic decays:[special characters omitted] The K, π, and p are identified using the Time of Flight detector (TOF), the CDF spectrometer, and the specific ionization (dE/dx) measured in the central drift chamber (COT). The fraction of charged kaons produced in association with [special characters omitted] mesons is found to be larger than the fraction produced in association with the B¯0 and B - mesons, as expected from naive models of heavy quark hadronization to mesons. The particle species yields are found to be in qualitative agreement with simulation of B meson production in hadron collisions from the PYTHIA Monte Carlo, although the yield of kaons around [special characters omitted] mesons is found to be larger in the simulation when compared to the data. These studies are important for understanding methods of identifying the flavor of [special characters omitted] mesons in measurements of [special characters omitted] flavor oscillations and charge conjugation-parity (CP) violation in [special characters omitted] meson decays