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rivet Analysis
Comparison of $p \bar{p}$ and $p p$ Interactions at $\sqrt{s}=53$-{GeV}

The UA5 collaboration Alpgard, K. ; Ansorge, R.E. ; Asman, B. ; et al.
Phys.Lett.B 112 (1982) 183-188, 1982.
Inspire Record 176647 DOI 10.17182/hepdata.30953

Results are presented from the first p p colliding beam runs at the CERN ISR, using the UA5 streamer chamber detector. p p interactions at s = 53 GeV are compared with pp data taken in the same experiment. The results are in good agreement with extrapolations of low-energy p p data.

5 data tables
Table 1

No description provided.

Table 2

MOMENTS OF MULTIPLICITY DISTRIBUTIONS FOR P P AND P AP. MULT(NAME=DQ) IS <(N-<N>)**Q>**1/Q. MULT(NAME=NQ) IS <N**Q>.

Table 3

Data read from plot.

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Observation of Xi- Production in $p \bar{p}$ Interactions at 540-{GeV} {CMS} Energy

The UA5 collaboration Alner, G.J. ; Alpgard, K. ; Anderer, P. ; et al.
Phys.Lett.B 151 (1985) 309-314, 1985.
Inspire Record 204764 DOI 10.17182/hepdata.30437

We have made the first observations of Ξ − production in p p interactions at √ s =540 GeV. In a sample of 6964 non single-diffractive events we observe 17 Ξ − decays with an estimated background of less than one event. This corresponds to 0.04 ± 0.01 Ξ − per event in the transverse momentum range p t >1.0 GeV/ c and in the pseudorapidity range |η| < 3.5. Assuming an exponential p t distribution, we find 〈 p t 〉=1.1 −0.2 +0.3 GeV/ c .

1 data table
Table 1

No description provided.


rivet Analysis
Charged Particle Correlations in $\bar{P} P$ Collisions at c.m. Energies of 200-{GeV}, 546-{GeV} and 900-{GeV}

The UA5 collaboration Ansorge, R.E. ; Åsman, B. ; Booth, C.N. ; et al.
Z.Phys.C 37 (1988) 191-213, 1988.
Inspire Record 263399 DOI 10.17182/hepdata.15683

We present data on two-particle pseudorapidity and multiplicity correlations of charged particles for non single-diffractive\(p\bar p - collisions\) at c.m. energies of 200, 546 and 900 GeV. Pseudorapidity correlations interpreted in terms of a cluster model, which has been motivated by this and other experiments, require on average about two charged particles per cluster. The decay width of the clusters in pseudorapidity is approximately independent of multiplicity and of c.m. energy. The investigations of correlations in terms of pseudorapidity gaps confirm the picture of cluster production. The strength of forward-backward multiplicity correlations increases linearly with ins and depends strongly on position and size of the pseudorapidity gap separating the forward and backward interval. All our correlation studies can be understood in terms of a cluster model in which clusters contain on average about two charged particles, i.e. are of similar magnitude to earlier estimates from the ISR.

3 data tables
Table 1

Correlation strength for different choices of pseudorapidity intervals.

Table 2

Correlation strength as a function of the central gap size for the symmetric data.

Table 3

Correlation strength as a function of the centre of the separating gap for a gap size of 2.