Article Dans Une Revue Nature Physics Année : 2015

Determination of the quark coupling strength |Vub| using baryonic decays

R. Aaij
  • Fonction : Auteur

Résumé

In the Standard Model of particle physics, the strength of the coupling of the b quark to the u quark, |Vub|, is governed by the coupling of the quarks to the Higgs boson. Using data from the LHCb experiment at the Large Hadron Collider, it is shown that |Vub|=(3.27±0.23)×10−3, from a measurement of Λ0b→pμ−ν¯μ decays. This is consistent with previous determinations of |Vub| using B meson decays to specific final states and confirms the existing incompatibility with those using an inclusive sample of final states. This measurement is the first ever to use a baryonic decay.

Fichier principal
Vignette du fichier
1504.01568.pdf (664.63 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

in2p3-01140296 , version 1 (28-09-2023)

Licence

Identifiants

Citer

R. Aaij, Y. Amhis, S. Barsuk, M. Borsato, O. Kochebina, et al.. Determination of the quark coupling strength |Vub| using baryonic decays. Nature Physics, 2015, 10, pp.1038. ⟨10.1038/nphys3415⟩. ⟨in2p3-01140296⟩
30 Consultations
1 Téléchargements

Altmetric

Partager

  • More