First Measurement of the b-jet Cross Section in Events with a W Boson in p-pbar Collisions at sqrt{s} = 1.96 TeV
arXiv:0909.1505 · doi:10.1103/PhysRevLett.104.131801
Abstract
The cross section for jets from b quarks produced with a W boson has been measured in ppbar collision data from 1.9/fb of integrated luminosity recorded by the CDF II detector at the Tevatron. The W+b-jets process poses a significant background in measurements of top quark production and prominent searches for the Higgs boson. We measure a b-jet cross section of 2.74 +- 0.27(stat.) +- 0.42(syst.) pb in association with a single flavor of leptonic W boson decay over a limited kinematic phase space. This measured result cannot be accommodated in several available theoretical predictions.
8 pages, 2 figures. Slight change to abstract per PRL referee requests. A few additional citations as well per PRL referee request.