Measurement of the CP Violation Parameter sin(2phi1) in B0d Meson Decays
A. Abashian
Abstract
We present a measurement of the Standard Model CP violation parameter sin(2phi1) based on a 10.5 fb-1 data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider. One neutral B meson is reconstructed in the J/psi KS, psi(2S) KS, chic1 KS, etac KS, J/psi KL or J/psi pi0 CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its charged particle decay products. From the asymmetry in the distribution of the time interval between the two B-meson decay points, we determine sin(2phi1) = 0.58 +0.32-0.34 (stat) +0.09-0.10 (syst).
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.