Direct (anti b)b production in (anti p)p collisions at (radical)s = 1.8 TeV

摘要

The first measurement of bottom quark production in the forward detector at CDF is presented in this thesis. Events from the 1988 /89 Fermilab collider run were selected with forward muons with nearby jets to form a bottom quark tag. The efficiency and acceptance of the detector are then taken into account and the number of events is turned into a cross section: (sigma)(p(sub t)(sup b) > 20 GeV, 1.9 < (vert bar)(eta)(sup b)(vert bar) < 2.5) = (124. (+-) 35. (+-) 76.) nb. The contribution from direct bottom quarks is (sigma)(p(sub t)(sup b) > 20 GeV, p(sub t)(sup (anti b)) > 15 GeV, 1.9 < (vert bar)(eta)(sup b)(vert bar) < 2.5) = (100. (+-) 30.(sub (minus)31.)(sup +30.)) nb.