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].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390442
Citazioni
  • Scopus 35
  • ???jsp.display-item.citation.isi??? 31
Social impact