We extract the heavy quark masses and non-perturbative parameters from the DELPHI preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/mc expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of |Vcb|. © 2003 Elsevier Science B.V. All rights reserved.

Battaglia, M., Calvi, M., Gambino, P., Oyanguren, A., Roudeau, P., Salmi, L., et al. (2003). Heavy quark parameters and |Vcb| from spectral moments in semileptonic B decays. PHYSICS LETTERS. SECTION B, 556(1-2), 41-49 [10.1016/S0370-2693(03)00042-X].

Heavy quark parameters and |Vcb| from spectral moments in semileptonic B decays

CALVI, MARTA
Secondo
;
2003

Abstract

We extract the heavy quark masses and non-perturbative parameters from the DELPHI preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/mc expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of |Vcb|. © 2003 Elsevier Science B.V. All rights reserved.
Articolo in rivista - Articolo scientifico
Nuclear and High Energy Physics
English
2003
556
1-2
41
49
none
Battaglia, M., Calvi, M., Gambino, P., Oyanguren, A., Roudeau, P., Salmi, L., et al. (2003). Heavy quark parameters and |Vcb| from spectral moments in semileptonic B decays. PHYSICS LETTERS. SECTION B, 556(1-2), 41-49 [10.1016/S0370-2693(03)00042-X].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/154323
Citazioni
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 40
Social impact