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

van der Aa, Olivier;Delaere, Christophe;Leibenguth, Guillaume;Lemaitre, Vincent;et.al.
(2007) Journal of High Energy Physics — Vol. 9, p. 706 (2007)

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Abstract
Inclusive beauty-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of 698 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 sigma(e+ e- --> e+ e- b ar{b} X) = (5.4 +/- 0.8 (stat) +/- 0.8 (syst)) pb which is consistent with Next-to-Leading Order QCD.
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van der Aa, O., Delaere, C., Leibenguth, G., Lemaitre, V., & et al. (2007). Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP. Journal of High Energy Physics, 9, 706. https://doi.org/10.1088/1126-6708/2007/09/102 (Original work published 2007)