Experimental review on moment analyses
Marta Calvi
Abstract
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|.
Create a lesson
Related papers
A new AI-based Full Event Interpretation model for flavour physics
Matteo Barbieri, Marta Calvi, Elena Graverini et al.
Using Line Segment Tracking to enable ML-based Track Reconstruction in CMS
Aashay Arora on behalf of the CMS Collaboration
RINO: Renormalization Group Distillation with No Labels
Zichun Hao, Raghav Kansal, Abhijith Gandrakota et al.
Real-time Track Reconstruction with FPGAs: an example from MUonE
Michael McGinnis, David Monk, Kristian Hahn
Measurement of the cross sections for e+e- pnπ- at center of mass energies from 3.510 to 4.946 GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov et al.
Measurements of the branching fractions of χcJΣ0Σ0η
BESIII Collaboration