First Measurement of the <em>b</em>-Jet Cross Section in Events with a <em><strong>W</strong></em> Boson in <em>pp</em> Collisions at s√=1.96  TeV

6 The p T distributions of the B and J= mesons in the data are slightly softer than those of the simulation; this difference is not relevant for the result of the study because the B

Two data sets are used for this measurement: a sample of jets from inclusive jet production, containing only a negligible amount of b -jets, and a sample where the heavy-flavor

We present the first measurement of the production cross section of a W boson with a single charm quark (c) in pp collisions at s√=1.96  TeV, using soft muon tagging of c jets.. In

This work was supported by the US Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture,

Since the Z þ c jet cross section in the data is unknown and the simulation may not accurately describe the rate of light jets that are reconstructed with a secondary vertex,

From the LO QCD predictions for the background and signal cross sections, we would expect about 1% of the events in the fit region of the dijet invariant mass spectrum (60–126 GeV=c 2

Table I sum- marizes the number of b-tagged jets expected from Monte Carlo simulation for each t t decay mode satisfying the kinematical and 1 b-tag requirements, as well as

Systematic uncertainties have been assigned to each of these contributions (see Sec. VII), and the M S distribution in a Monte Carlo simulation of b jets has been compared with