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Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP (2007)

Abstract
Inclusive \beauty-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of $698\mathrm{pb}^{-1}\,$ collected by the ALEPH detector with $\sqrt{s}$ between 130 and 209 \GeV . The b quarks were identified using lifetime information. The cross section is found to be \[ \mathrm{ \sigma(e^+ e^- \rightarrow e^+ e^- b \bar{b}\, X) = (5.4\pm 0.8\,_{stat} \pm 0.8\,_{syst}} )\,\mathrm{pb},\] which is consistent with Next-to-Leading Order QCD.

Publication details
Download http://arxiv.org/pdf/0706.3150.pdf
http://doc.cern.ch/cgi-bin/setlink?base=preprint&categ=jhep&id=jhep092007102
http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=phep-2007-020
http://cdsweb.cern.ch/record/1043442/files/jhep092007102.pdf
http://cdsweb.cern.ch/record/1043442/files/phep-2007-020.pdf
http://cdsweb.cern.ch/record/1043442/files/phep-2007-020.ps.gz
Repository CERN Document Server (Switzerland)
Keywords Particle Physics - Experimental Results, Particle Physics - Experimental Results
Language eng