Zheng, H.W.
E+ E- --> ETA X
E+ E- Scattering
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rivet Analysis
Production of $\eta$ Mesons in $e^+ e^-$ Annihilations at $\sqrt{s}=29$-{GeV}

The HRS collaboration Abachi, S. ; Akerlof, C. ; Baringer, P. ; et al.
Phys.Lett.B 205 (1988) 111-114, 1988.
Inspire Record 250824 DOI 10.17182/hepdata.29979

Data from e + e − annihilations at 29 GeV have been used to measure the production cross section and fragmentation function of η mesons. The signal is observed in the η → γγ decay channel. The fragmentation for p η >1.5 GeV/ c agrees well with the prediction of the Lund model, whereas the prediction of the Webber model lies above the data. The mean multiplicity is measured to be 〈 n η 〉=0.58±0.10 η mesons per hadronic event, of which 0.51 represents the direct production of η and η ′ mesons in the fragmentation chain.

2 data tables
Table 1

Statistical errors only.

Table 2

Extrapolated to full z range using LUND model.


rivet Analysis
Measurement of pi0 and eta meson production in e+ e- annihilation at s**(1/2) near 10-GeV

The Crystal Ball collaboration Bieler, Ch. ; Antreasyan, D. ; Bartels, H.W. ; et al.
Z.Phys.C 49 (1991) 225-234, 1991.
Inspire Record 297905 DOI 10.17182/hepdata.15082

We present a study of inclusive π0 and ŋ production ine+e− annihilation at

6 data tables
Table 1

Particle multiplicities in the continuum.

Table 2

Particle multiplicities in the UPSILON (1S).

Table 3

Inclusive pi0 spectra in the continuum.

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rivet Analysis
Studies of quantum chromodynamics with the ALEPH detector

The ALEPH collaboration Barate, R. ; Buskulic, D. ; Decamp, D. ; et al.
Phys.Rept. 294 (1998) 1-165, 1998.
Inspire Record 428072 DOI 10.17182/hepdata.47582

Previously published and as yet unpublished QCD results obtained with the ALEPH detector at LEP1 are presented. The unprecedented statistics allows detailed studies of both perturbative and non-perturbative aspects of strong interactions to be carried out using hadronic Z and tau decays. The studies presented include precise determinations of the strong coupling constant, tests of its flavour independence, tests of the SU(3) gauge structure of QCD, study of coherence effects, and measurements of single-particle inclusive distributions and two-particle correlations for many identified baryons and mesons.

44 data tables
Table 1

Charged particle sphericity distribution.

Table 2

Charged particle aplanarity distribution.

Table 3

Charged particle Thrust distribution.

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