منابع مشابه
B Cp -violation, Mixing and Lifetime Results from Belle
Recent results on the B CP -violation parameter sin 2φ1, the B 0 d-B 0 d mixing parameter ∆md and B-meson lifetimes are reported. The results are based on 10.5 fb of data collected with the Belle detector at KEKB. Using both semileptonic and hadronic decay modes the neutral and charged B-meson lifetimes are measured to be τ (B d) = 1.548 ± 0.035 (stat.) ps and τ (B) = 1.656±0.038 (stat.) ps. Th...
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New results on hadron physics from the Belle experiment are presented. Recent results from Belle
متن کاملRecent Results from Belle
The huge data sample accumulated at the KEKB storage ring allows for dedicated analyses in charm spectroscopy. A new, narrow resonance with a mass of 3.872GeV was found in decays of B mesons. Its properties remain unexplained. Results on various properties of the DsJ(2317) resonances have been updated. Older results on the unexpectedly large cross section for double charmonium production in ee ...
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The DIRC (Detection of Internally Reflected Cerenkov light) is a new type of ring imaging Cerenkov detector, which detects images from Cerenkov light produced in precisely machined quartz bars. The Cerenkov images are transported along several meters of bar to the edge of the detector where they are proximity focussed unto an array of conventional photomultiplier tubes. Results from a prototype...
متن کاملBottomonium Results from BABAR and BELLE
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 ee collisions at center of mass energies of the Υ(2S), Υ(3S) and to an energy scan above the Υ(4S). Besides the observation of the bottomonium ground state ηb, the center of mass energy dependent ee...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2001
ISSN: 0168-9002
DOI: 10.1016/s0168-9002(01)00069-9