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Enhancement of strange and multi-strange baryons and anti-baryons in S W interactions at 200-GeV/c

The WA85 collaboration Antinori, F. ; Barnes, R.P. ; Bayes, A.C. ; et al.
Phys.Lett. B447 (1999) 178-182, 1999.
Inspire Record 500180 DOI 10.17182/hepdata.28123
3 data tables

Hyperon to negative production ratios with sulphur beam.

Hyperon to negative production ratios with proton beam.

Strange and multistrange baryon enhancements.


Lambda, Xi and Omega production in Pb Pb collisions at 158-A-GeV/c

The WA97 collaboration Andersen, E. ; Antinori, F. ; Armenise, N. ; et al.
Nucl.Phys. A638 (1998) 115-124, 1998.
Inspire Record 481868 DOI 10.17182/hepdata.36351
5 data tables

No description provided.

No description provided.

No description provided.

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Hyperon production in proton tungsten interactions at 200-GeV/c

The WA85 collaboration Abatzis, S. ; Andrighetto, A. ; Antinori, F. ; et al.
Phys.Lett. B393 (1997) 210-216, 1997.
Inspire Record 456774 DOI 10.17182/hepdata.6511
9 data tables

No description provided.

No description provided.

No description provided.

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Xi and anti-xi production in 158-GeV / nucleon Pb + Pb collisions

The NA49 collaboration Appelshauser, H. ; Bachler, J. ; Bailey, S.J. ; et al.
Phys.Lett. B444 (1998) 523-530, 1998.
Inspire Record 477539 DOI 10.17182/hepdata.31330

We report measurements of Xi and Xi-bar hyperon absolute yields as a function of rapidity in 158 GeV/c Pb+Pb collisions. At midrapidity, dN/dy = 2.29 +/- 0.12 for Xi, and 0.52 +/- 0.05 for Xi-bar, leading to the ratio of Xi-bar/Xi = 0.23 +/- 0.03. Inverse slope parameters fitted to the measured transverse mass spectra are of the order of 300 MeV near mid-rapidity. The estimated total yield of Xi particles in Pb+Pb central interactions amounts to 7.4 +/- 1.0 per collision. Comparison to Xi production in properly scaled p+p reactions at the same energy reveals a dramatic enhancement (about one order of magnitude) of Xi production in Pb+Pb central collisions over elementary hadron interactions.

2 data tables

Data are given at the midrapidity value.

Requested data from authors.


Enhancement of central Lambda, Xi and Omega yields in Pb - Pb collisions at 158 A-GeV/c

Andersen, E. ; Antinori, F. ; Armenise, N. ; et al.
Phys.Lett. B433 (1998) 209-216, 1998.
Inspire Record 471052 DOI 10.17182/hepdata.49545
4 data tables

Measured slope for P-PB with POWER=3/2.

Measured slope for PB-PB with POWER=3/2.

Measured slope for P-PB with POWER=1.0.

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A Study of cascade and strange baryon production in sulphur - sulphur interactions at 200-GeV/c per nucleon

The OMEGA-IONS collaboration Abatzis, S. ; Andersen, E. ; Andrighetto, A. ; et al.
Phys.Lett. B354 (1995) 178-182, 1995.
Inspire Record 395028 DOI 10.17182/hepdata.47883
8 data tables

No description provided.

No description provided.

No description provided.

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Measurement of the Omega / Xi production ratio in central S - W interactions at 200-A-GeV/c

The WA85 collaboration Abatzis, S. ; Andrighetto, A. ; Antinori, F. ; et al.
Phys.Lett. B347 (1995) 158-160, 1995.
Inspire Record 402400 DOI 10.17182/hepdata.27095

Strange baryon and in particular multi-strange baryon production is suggested to be a useful probe in the search for quark gluon plasma formation in heavy ion collisions. We have measured the (Ω − + Ω + ) (Ξ − + Ξ + ) production ratio to be 0.8±0.4 at central rapidity and ϱ T > 1.6 GeV/c.

1 data table

No description provided.


Strange particle production in sulphur - tungsten interactions at 200-GeV/c per nucleon

The WA85 collaboration Kinson, J.B. ; Abatzis, S. ; Antinori, F. ; et al.
Nucl.Phys. A544 (1992) 321-334, 1992.
Inspire Record 321220 DOI 10.17182/hepdata.36664
4 data tables

No description provided.

No description provided.

No description provided.

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Multistrange baryon and anti-baryon production in sulphur tungsten and proton tungsten interactions at 200-GeV/c per nucleon

The WA85 collaboration Abatzis, S. ; Barnes, R.P. ; Benayoun, Maurice ; et al.
Nucl.Phys. A525 (1991) 441C-444C, 1991.
Inspire Record 328918 DOI 10.17182/hepdata.36816
2 data tables

PRODUCTION AT CENTRAL RAPIDITY. 123 XI- AND 53 XIBAR+ CANDIDATES.

PRODUCTION AT CENTRAL RAPIDITY. 82 XI- AND 22 XIBAR+ CANDIDATES.


Xi-, anti-xi-, Lambda and anti-Lambda production in sulphur - tungsten interactions at 200-GeV/c per nucleon

The WA85 collaboration Abatzis, S. ; Antinori, F. ; Barnes, R.P. ; et al.
Phys.Lett. B270 (1991) 123-127, 1991.
Inspire Record 318147 DOI 10.17182/hepdata.29306

Multi-strange baryon and antibaryon production is expected to be a useful probe in the search for quark-gluon plasma formation. We present the transverse mass distributions of negative particles, Λ' s , Λ ' s and Ξ − ' s produced in sulphur-tungsten interactions at 200 GeV/ c per nucleon and give the corrected rations Λ /Λ, Ξ − /Λ and Ξ − / Λ . Our ratio Ξ − / Λ appears to be larger than that from pp interactions.

3 data tables

Inverse slopes for different particle production.

Data from this and other WA85 publications.

Data from this and other WA85 publications.


Production of multistrange baryons and anti-baryons in sulphur - tungsten interactions at 200-GeV/c per nucleon

The WA85 collaboration Abatzis, S. ; Antinori, F. ; Barnes, R.P. ; et al.
Phys.Lett. B259 (1991) 508-510, 1991.
Inspire Record 300857 DOI 10.17182/hepdata.29452

Production of Ξ − and Ξ − has been observed for the first time in heavy ion interactions by the WA85 Experiment. Multistrange baryon and antibaryon production is expected to be a useful probe in the search for quark-gluon plasma formation. We describe the procedure used to select these cascade candidates and show that Ξ − and Ξ − decays can be identified. The ratio of Ξ Ξ production, corrected for geometrical acceptances and reconstruction efficiencies, is 0.39 ± 0.07 for sulphur-tungsten interactions in the central rapidity interval 2.3< Y lab <3.0 and p T >1.1 GeV/ c .

1 data table

No description provided.