I report the first results on measurements from the LHCb experiment using 7 TeV proton-proton collisions at the LHC collider. I will concentrate on measurements of the bb cross-section, though other results have been shown. Using semileptonic b decays into a D0 and a µ− we find that the average cross-section to produce b-flavoured or b-flavoured hadrons is (75.3±5.4±13.0) µb in the pseudorapidity interval 2 < η < 6 and integrated over all transverse momenta. Using decays into Jψ meson we find in the same phase space (84.5±6.3±15.6) µb. Averaging the two results and extrapolating over the entire kinematic region gives σ(pp → bbX) = (298 ±15 ±43) µb. (For more material presented at the conference that page constraints have forced me to omit, see http://indico.cern.ch/contributionDisplay.py?contribId=1055&confId=73513.).
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Jan 1 2010|
|Event||35th International Conference of High Energy Physics, ICHEP 2010 - Paris, France|
Duration: Jul 22 2010 → Jul 28 2010
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