Abstract
Using the detector ARGUS at the e+e- storage ring DORIS II, we have investigated inclusive momentum spectra of charged pions, kaons, and protons from decays of the υ(4S) meson. The kaon spectra have been measured in two independent ways, by coherently exploiting the detector's particle identification capabilities, and by detecting decays in-flight. The extracted mean multiplicities for charged hadrons are 7.17±0.05±0.14 pions, 1.56±0.03±0.05 kaons and 0.110±0.010±0.007 protons per υ(4 S) decay, where pions and protons from Ks o and Δ decays have been subtracted.
Original language | English |
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Pages (from-to) | 191-198 |
Number of pages | 8 |
Journal | Zeitschrift für Physik C Particles and Fields |
Volume | 58 |
Issue number | 2 |
DOIs | |
State | Published - Jun 1993 |
Externally published | Yes |