Inclusive Σ + and Σ 0 production in hadronic Z decays

Acciarri, M. ; Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2000) Inclusive Σ + and Σ 0 production in hadronic Z decays Physics Letters B, 479 (1-3). pp. 79-88. ISSN 0370-2693

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We report on measurements of the inclusive production rate of Σ+ and Σ 0 baryons in hadronic Z decays collected with the L3 detector at LEP. The Σ+ baryons are detected through the decay Σ+ →pπ0, while the Σ0 baryons are detected via the decay mode Σ0 →Λγ. The average numbers of Σ+ and Σ0 per hadronic Z decay are measured to be: (NΣ+)+ NΣ̅+)=0.114 ±0.011stat±0.009syst (NΣ°)+NΣ̅°)=0.095±0.015 stat±0.013syst.These rates are found to be higher than the predictions from Monte Carlo hadronization models and analytical parameterizations of strange baryon production.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:84063
Deposited On:24 Feb 2012 05:34
Last Modified:24 Feb 2012 05:34

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