Bottomonium Results from BABAR and BELLE

2009/06/03 by J. Marks, Marks, Joerg
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.0906.0725

openalex publication_date 2009/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

After nine years of operation the BABAR experiment at the B factory PEPII (Standford Linear Accelerator Center) stopped data taking in April 2008. The last three month of data taking were devoted to e+e- collisions at center of mass energies of the Upsilon(2S), Upsilon(3S) and to an energy scan above the Upsilon(4S). Besides the observation of the bottomonium ground state eta_b, the center of mass energy dependent e+e- -> b bbar cross section was measured in the energy range from 10.54 to 11.20 GeV. BELLE observed an enhancement in the production cross section for e+e- -> Upsilon(nS) pi+ pi- -> mu+ mu- pi+ pi- in an energy scan from 10.83 to 11.02 GeV.

Related

• Bottomonium at BaBar
• New results from the B factories Belle and BaBar
• Study of Transitions and Decays of Bottomonia at Belle
• Recent BaBar Studies of Bottomonium States
• Observation of the bottomonium ground state, eta_b, at BaBar