Measurement of Inclusive Production of Neutral Pions from Upsilon(4S) Decays
Belle Collaboration: K.Abe, et al.
TL;DR
This paper reports the measurement of neutral pion production from Upsilon(4S) decays using the Belle detector, providing precise multiplicity and momentum spectrum data to enhance understanding of bottomonium decay processes.
Contribution
It presents the first detailed measurement of neutral pion multiplicity and spectrum from Upsilon(4S) decays, offering new experimental data for bottomonium decay studies.
Findings
Mean neutral pion multiplicity per Upsilon(4S) decay is 4.70 ± 0.04 ± 0.22.
Provides the momentum spectrum of neutral pions from Upsilon(4S) decays.
Data improves understanding of bottomonium decay mechanisms.
Abstract
Using the Belle detector operating at the KEKB e+e- storage ring, we have measured the mean multiplicity and the momentum spectrum of neutral pions from the decays of the Upsilon(4S) resonance. We measure a mean of 4.70 +/- 0.04 +/- 0.22 neutral pions per Upsilon(4S) decay.
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