Experimental review on moment analyses

Details Experimental review on moment analyses Experimental review on moment analyses

2003-07-16

arxiv.org/abs/hep-ex/0307040v2

eConf C0304052 (2003) WG103

Physics

High Energy Physics

High Energy Physics - Experiment

Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052)

Scientific paper

Moments of the photon energy spectrum in B -> Xs gamma decays, of the hadronic mass spectrum and of the lepton energy spectrum in B -> Xc l nu decays are sensitive to the masses of the heavy quarks as well as to the non-perturbative parameters of the heavy quark expansion. Several measurements have been performed both at the Upsilon(4S) resonance and at Z0 center of mass energies. They provide constraints on the non-perturbative parameters, give a test of the consistency of the theoretical predictions and of the underlying assumptions and allow to reduce the uncertainties in the extraction of |Vcb|.

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