"Table 6" of "Measurement of R and determination of the charged particle multiplicity in e+ e- annihilation at s**(1/2) around 10-GeV"

DESY-DORIS. Measurement of R and determination of the charged particle multiplicity by the ARGUS collaboration in e+ e- annihilation around 10 GeV. Multiplicities are measured for the continuum at sqrt(s) = 10.47 GeV (just below the B.BBAR threshold) and in the UPSILON(4S) resonance decays.

DESY-DORIS装置上，ARGUS合作组针对约10GeV能区的正负电子湮灭（electron-positron annihilation）过程，开展了R值测量与带电粒子多重数（charged particle multiplicity）测定实验。其中，带电粒子多重数的测量分别针对质心系能量√s=10.47GeV（恰好位于B反B对产生阈值下方）的连续谱过程，以及Υ(4S)共振态的衰变过程。