First results from LHCb

Research output: Contribution to journalConference article

Abstract

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 languageEnglish (US)
JournalProceedings of Science
Volume120
StatePublished - Jan 1 2010
Event35th International Conference of High Energy Physics, ICHEP 2010 - Paris, France
Duration: Jul 22 2010Jul 28 2010

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protons
cross sections
decay
transverse momentum
hadrons
kinematics
mesons
intervals
collisions

ASJC Scopus subject areas

  • General

Cite this

First results from LHCb. / Stone, Sheldon.

In: Proceedings of Science, Vol. 120, 01.01.2010.

Research output: Contribution to journalConference article

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