2017/10/04 by G. Eigen, Gerald Eigen, Eigen, Gerald
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.48550/arxiv.1710.01603
9 pages, 7 figures, Talk presented at the APS Division of Particles and Fields Meeting (DPF 2017), July 31-August 4, 2017, Fermilab. C170731
arxiv created 2017/10/04 · openalex publication_date 2017/10/04 · arxiv updated 2017/10/05 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
We present results of a new analysis campaign, which combines the final data samples collected by the B factory experiments BABAR and Belle in single physics analyses to achieve a unique sensitivity in time-dependent \CP violation measurements. The data samples contain (471 ± 3) × 106 ~B B pairs recorded by the BABAR detector and (772 ± 11) × 106 ~ B B pairs recorded by the Belle detector in e+e- collisions at the center-of-mass energies corresponding to the mass of the Υ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We present a measurement of sin 2β and cos 2β by a time-dependent Dalitz plot analysis of B0 → D(*) h0 with D → K0S π+π- decays. A first evidence for cos 2β>0, the exclusion of trigonometric multifold solutions of the Unitarity Triangle and an observation of \CP violation are reported.