2004/08/14 by B. Aubert, BABAR Collaboration, Aubert, B. +1
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0408061
18 pages, 5 figures, contributed to ICHEP'04
arxiv created 2004/08/14 · openalex publication_date 2004/08/14 · arxiv updated 2009/12/01 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
The B --> rho0 rho0 decay mode is searched for in a data sample of about 227 million Upsilon(4S) --> B Bbar decays collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. No significant signal is observed, and an upper limit of 1.1 x 10e-6 (90% C.L.) on the branching fraction is set. Implications on the penguin contribution and constraints on the CKM angle alpha with B --> rho rho decays are discussed. All results are preliminary.