The decays η → γγ and η′ → ηπ+π- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the η and η′ have been measured. The measured multiplicities for x > 0.1 are 0.298±0.023±0.021 and 0.068±0.016 for η and η′ respectively. While the fragmentation function for the η is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the η′ is a factor of four less than the corresponding prediction.

Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). Measurement of the production rates of η and η′ in hadronic Z decays. PHYSICS LETTERS. SECTION B, 292(1-2), 210-220 [10.1016/0370-2693(92)90633-F].

Measurement of the production rates of η and η′ in hadronic Z decays

CARPINELLI, Massimo;
1992

Abstract

The decays η → γγ and η′ → ηπ+π- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the η and η′ have been measured. The measured multiplicities for x > 0.1 are 0.298±0.023±0.021 and 0.068±0.016 for η and η′ respectively. While the fragmentation function for the η is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the η′ is a factor of four less than the corresponding prediction.
Articolo in rivista - Articolo scientifico
E+E ANNIHILATION; LEP;
English
1992
292
1-2
210
220
none
Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). Measurement of the production rates of η and η′ in hadronic Z decays. PHYSICS LETTERS. SECTION B, 292(1-2), 210-220 [10.1016/0370-2693(92)90633-F].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390442
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