Improved Measurement of |Vub| with Inclusive Semileptonic B Decays
A. Bornheim, CLEO Collaboration
Abstract
We report a new measurement of the CKM parameter Vub made with a sample of 9.7 million B B-bar events collected with the CLEO II detector. Using Heavy Quark theory, we combine the observed yield of leptons from semileptonic B decay in the end-point momentum interval 2.2-2.6 GeV/c with recent CLEO II data on B --> Xs gamma to find |Vub| = (4.08 +/- 0.34 +/- 0.44 +/- 0.16 +/- 0.24) x 10-3, where the first two uncertainties are experimental and the last two are from theory.
Create a lesson
Related papers
Detecting photons in radiative Bhabha interaction with Si-strip and LYSO crystals at future e+e- colliders
Chentao Bao, Hai Chen, Wang Chen et al.
Exploring Collective Effects in Small Collision Systems via Light-Flavour Particle Production in High-Multiplicity pp Collisions at s= 13 TeV in ALICE
Rajendra Nath Patra for the ALICE Collaboration
Forward decay chain reconstruction with displaced vertices in intense magnetic fields
Sergio Javier Jaimes Elles, Simone Libralon, Fernando Martinez Vidal et al.
Energy-energy correlators within Z-tagged jets in proton-proton collisions at s = 13 TeV
LHCb collaboration, R. Aaij, M. Abdelfatah et al.
Branching fraction measurement of the B0 K+π-μ+μ- decay at high dihadron mass
LHCb collaboration, R. Aaij, M. Abdelfatah et al.
Planck-Scale Constraints on Quantum Gravity-Induced Neutrino Decoherence with IceCube
R. Abbasi, M. Ackermann, J. Adams et al.