Wicklund, A.B.
EHS/NA22
nucl-ex
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Deuteron production in collisions of 250-GeV/c pi+ and K+ mesons with Al and Au nuclei.

The EHS/NA22 collaboration Agababyan, N.M. ; Boettcher, H. ; Botterweck, F. ; et al.
Z.Phys.C 52 (1991) 231-238, 1991.
Inspire Record 324034 DOI 10.17182/hepdata.14927

Experimental data are presented on deuteron production in the target fragmentation region for 250 GeV/c π+ interactions with Al and Au nuclei, and compared with analogous data on proton production. Indications are observed for narrow structures in the (dπ-) effective mass system at ∼2.04 and ∼2.08 GeV.

18 data tables
Table 1

Number of weighted events as a function of number of forward produced deuterons.

Table 2

Number of weighted events as a function of number of forward produced deuterons.

Table 3

Mean deuteron multiplicity.

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Rapidity and transverse momentum structure in pi+ and K+ collisions with Al and Au nuclei at 250-GeV/c

The EHS/NA22 collaboration Agababyan, N.M. ; Ajinenko, I.V. ; Belokopytov, Yu. A. ; et al.
Z.Phys.C 50 (1991) 361-372, 1991.
Inspire Record 302020 DOI 10.17182/hepdata.14979

An analysis is presented of the rapidity and transverse momentum distributions and of the nuclear stopping power in collisions ofπ+ andK+ mesons with Al and Au nuclei at 250 GeV/c. The experimental results are compared to predictions of the additive quark model and the dual parton model. The AQM offers an overall consistent description of the data in this experiment. The DPM reproduces reasonably well the rapidity spectra in the central and projectile fragmentation regions, but fails to describe the nuclear stopping power.

14 data tables
Table 1

No description provided.

Table 2

Excluding protons of PLAB < 1.2 GeV.

Table 3

No description provided.

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Factorial moments and correlations in meson - nucleus interactions at 250-GeV/c

The EHS/NA22 collaboration Botterweck, F. ; Charlet, M. ; Chliapnikov, P.V. ; et al.
Z.Phys.C 51 (1991) 37-48, 1991.
Inspire Record 302022 DOI 10.17182/hepdata.40466

A sample of 8000 interactions of 250 GeV/c π+ andK+ mesons on Al and Au nuclei, is used to search for intermittency effects by calculating the normalized factorial moments of order two to four. No significant effect is observed in the higher moments. Two-body rapidity correlations and Bose-Einstein correlations in these interactions are presented.

1 data table
Table 1

No description provided.


Multiplicity Distribution in $K^+$ Al and $K^+$ Au Collisions at 250-{GeV}/c and a Test of the Multiple Collision Model.

The EHS/NA22 collaboration Ajinenko, I.V. ; Belokopytoy, Yu. A. ; Bialkowska, H. ; et al.
Z.Phys.C 42 (1989) 377-385, 1989.
Inspire Record 281815 DOI 10.17182/hepdata.15530

Multiplicity distributions, observed inK+ interactions with Al and Au nuclei at 250 GeV/c incident momentum are presented. They are analyzed in the framework of multiple collisions of the incident particle inside a nucleus. The probability distribution of the number of grey tracks is well described by the model of Andersson et al., if a negative binomial distribution is assumed for the distribution of the number of grey protons produced per elementary collision instead of the usual geometrical distribution. The analysis of the average and dispersion of the charge multiplicity distribution supports the validity of the multiple collision model, including results on correlations between forward and backward multiplicities.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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