Measurement of inclusive production of neutral pions from Υ(4S) decays
K. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara et autres
Using the Belle detector operating at the KEKB e ϩ e Ϫ storage ring, we have measured the mean multiplicity and momentum spectrum of neutral pions from the decays of the ⌼(4S) resonance.We measure a mean of 4.70Ϯ0.04Ϯ0.22neutral pions per ⌼(4S) decay.
jp, kr, us, au, tw, at, cn, Éthiopie, ru, pl, de (code pays fourni par la source)