@article{oai:tsukuba.repo.nii.ac.jp:00018227,
 author = {原, 和彦 and 金, 信弘 and 武内, 勇司 and 受川, 史彦 and CDF Collaboration and Hare, K. and Kim, S. H. and Takeuchi, Y. and Ukegawa, F.},
 issue = {3},
 journal = {Physical review D},
 month = {Feb},
 note = {We present a new measurement of the inclusive and differential production cross sections of J/ψ mesons and b hadrons in proton-antiproton collisions at sqrt[s]=1960??GeV. The data correspond to an integrated luminosity of 39.7??pb-1 collected by the CDF run II detector. We find the integrated cross section for inclusive J/ψ production for all transverse momenta from 0 to 20??GeV/c in the rapidity rangey <0.6 to be 4.08±0.02(stat)-0.33+0.36(syst)??μb. We separate the fraction of J/ψ events from the decay of the long-lived b hadrons using the lifetime distribution in all events with pT(J/ψ)>1.25??GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/ψ with transverse momenta greater than 1.25??GeV/c in the rapidity range y(J/ψ) <0.6 is 0.330±0.005(stat)-0.033+0.036(syst)??μb. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/ψ, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at sqrt[s]=1960??GeV. We find the total single b-hadron cross section integrated over all transverse momenta for b hadrons in the rapidity rangey <0.6 to be 17.6±0.4(stat)-2.3+2.5(syst)??μb.},
 title = {Measurement of the J/ψ meson and b-hadron production cross sections in pp- collisions at sqrt[s]=1960??GeV},
 volume = {71},
 year = {2005}
}