The production of prompt charmonia was studied using a 32.4 fb -1 data sample collected with the Belle detector. The Belle detector is a large solid-angle spectrometer equipped with a 1.5 T superconducting solenoid magnet. The results showed that the yield of prompt J/ψ mesons in the υ(4S) sample is compatible with that of continuum production.
|Number of pages||6|
|Journal||Physical review letters|
|Publication status||Published - 2002 Feb 4|
ASJC Scopus subject areas
- Physics and Astronomy(all)