Yu, Intae
E+ E- --> LAMBDABAR X
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Production of charged particles, K0(s), K+-, p and Lambda in Z --> b anti-b events and in the decay of b hadrons

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.
Phys.Lett.B 347 (1995) 447-466, 1995.
Inspire Record 392257 DOI 10.17182/hepdata.48180

A sample of events enriched in bb̄ quark pairs was selected in the data recorded by the DELPHI experiment at LEP during 1992 and 1993, by the presence of secondary decay vertices from short-lived particles. Using this sample, the average multiplicities of K s 0 , K ± , p(p̄), Λ( Λ ) and of charged particles in bb̄ events have been measured, distinguishing the component from fragmentation and the component coming from the decay of b-hadrons. The measurement of the average charge multiplicity in bb̄ events was used to compute the mean fractional beam energy carried by the primary b-hadron, and the difference in charged particle multiplicity between bb̄ events and light quark (uū, dd̄, ss̄) events.

9 data tables
Table 1

Event multiplicity in bottom events.

Table 2

Differential cross section for charged particles in BOTTOM tagged hemispheres.

Table 3

Differential cross section for charged particles in untagged hemispheres.

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rivet Analysis
First measurement of the strange quark asymmetry at the Z0 peak

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.
Z.Phys.C 67 (1995) 1-14, 1995.
Inspire Record 382285 DOI 10.17182/hepdata.48256

None

4 data tables
Table 1

Measured forward backward asymmetries.

Table 2

Forward-backward s-quark asymmetries from the separate processes.

Table 3

Final s-quark forward-backward asymmetries.

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rivet Analysis
Production of Lambda and Lambda anti-Lambda correlations in the hadronic decays of the Z0

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.
Phys.Lett.B 318 (1993) 249-262, 1993.
Inspire Record 360638 DOI 10.17182/hepdata.48369

An analysis of the production of the Λ baryon in the hadronic decays of the Z 0 is presented, based on about 993K multihadronic events collected by the DELPHI detector at LEP during 1991 and 1992. The differencial cross section of the Λ and the correlations between Λ and Λ produced in the same event are compared to current models, based both on string fragmentation and on cluster decay. The predictions of the string fragmentation model are found to give satisfactory agreements with the data, clearly better than those of the cluster model.

6 data tables
Table 1

No description provided.

Table 2

Combined LAMBDA and LAMBDABAR multiplicity.

Table 3

Errors contain systematic uncertainties.

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rivet Analysis
Inclusive production of charged pions, kaons and protons in upsilon (4S) decays

The ARGUS collaboration Albrecht, H. ; Cronstrom, H.I. ; Ehrlichmann, H. ; et al.
Z.Phys.C 58 (1993) 191-198, 1993.
Inspire Record 340894 DOI 10.17182/hepdata.14424

Using the detector ARGUS at thee+e− storage ring DORIS II, we have investigated inclusive momentum spectra of charged pions, kaons, and protons from decays of the υ(4S) meson. The kaon spectra have been measured in two independent ways, by coherently exploiting the detector's particle identification capabilities, and by detecting decays in-flight. The extracted mean multiplicities for charged hadrons are 7.17±0.05±0.14 pions, 1.56±0.03±0.05 kaons and 0.110±0.010±0.007 protons per υ(4S) decay, where pions and protons fromKso and Δ decays have been subtracted.

11 data tables
Table 1

Inclusive pion spectrum from UPSI(4S) decays.

Table 2

Inclusive pion spectrum from UPSI(4S) decays with KS and LAMBDA decay particles included.

Table 3

Inclusive kaon spectrum from UPSI(4S) decays.

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Production of strange particles in the hadronic decays of the Z0

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adami, F. ; et al.
Phys.Lett.B 275 (1992) 231-242, 1992.
Inspire Record 322503 DOI 10.17182/hepdata.29267

An analysis of the production of strange particles from the decays of the Z 0 boson into multihadronic final states is presented. The analysis is based on about 90 000 selected hadronic Z 0 decays collected by the DELPHI detector at LEP in 1990. K s 0 , K ∗± , Λ( Λ ) and Ξ − ( Ξ + ) have been identified by their characteristic decays. The measured production cross sections are compared with predictions of the Lund Monte Carlo tuned to data at PEP/PETRA energies.

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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rivet Analysis
STUDY OF p p AND LAMBDA LAMBDA PRODUCTION IN e+ e- ANNIHILATION AT 10-GeV CENTER-OF-MASS ENERGY

The ARGUS collaboration Albrecht, H. ; Ehrlichmann, H. ; Glaser, R. ; et al.
Z.Phys.C 49 (1991) 349-354, 1991.
Inspire Record 295621 DOI 10.17182/hepdata.15433

None

8 data tables
Table 1

Ratio per multihadron event for continuum data.

Table 2

Ratio per multihadron event for continuum data.

Table 3

Ratio per multihadron event for continuum data.

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