Measurement of the ppbar -> W+b+X production cross section at \sqrt{s}=1.96 TeV

• Published in: Physics letters. B 2013, Vol.718, p.1314-1320
• Main Authors: Abazov, V.M., Bassler, U., Bernardi, G., Besançon, M., Brown, D., Brown, J., Chapon, E., Chevalier-Thery, S., Couderc, F., Croc, A., Deliot, F., Deterre, C., Enari, Y., Greder, S., Grenier, G., Grohsjean, A., Hubacek, Z., Kurca, T., Lebrun, P., Lellouch, J., Li, D., Miconi, F., Shary, V., Titov, M., Tuchming, B., Verdier, P., Vilanova, D., Li, H., Sajot, G., Stark, J., Grivaz, J.-F., Guillemin, T., Jaffré, M., Pétroff, P., Badaud, F., Gay, Pascal, Gris, Ph, Cousinou, M.-C., Duperrin, A., Geng, W., Kajfasz, E., Kermiche, S., Nagy, E., Osman, N.
• Format: Article
• Language: English
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2012.12.044

We present a measurement of the cross section for $W$ boson production in association with at least one {$b$-quark} jet in proton-antiproton collisions. The measurement is made using data corresponding to an integrated luminosity of 6.1\ifb recorded with the D0 detector at the Fermilab Tevatron \ppbar Collider at $\sqrt{s}=1.96$ TeV. We measure an inclusive cross section of {$\sigma(W \sim(\to\mu\nu) + b + X) = 1.04 \pm 0.05\thinspace$(stat.) $\pm 0.12 \thinspace$(syst.) pb} and $\sigma(W (\to e\nu) + b + X) = 1.00$ \pm 0.04 \thinspace$(stat.) $\pm 0.12 \thinspace$(syst.) pb in the phase space defined by $p_T^\nu > 25$ GeV, $p_T^{\text{$b$-jet}}>20$ GeV, $|\eta^{\text{$b$-jet}}|20$ GeV and $|\eta^\mu|