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PARTICLE MULTIPLICITIES AND MULTIPLICITY CORRELATIONS OBSERVED IN pi p COLLISIONS WITH HE NE NUCLEI IN A STREAMER CHAMBER

Allen, R.C. ; Kanofsky, A.S. ; Hasan, M.A. ;
Phys.Rev.C 27 (1983) 670-681, 1983.
Inspire Record 8194 DOI 10.17182/hepdata.38068

We have measured the multiplicities of particles emitted in collisions between π's and p's of 1.5 to 2.5 GeV/c momentum with He and Ne nuclei in a streamer chamber. The chamber gas served as the target as well as the detecting medium. Because of the low density and 4π solid angle of the detector, it was possible to detect nuclear fragments with energies less than 5 MeV, and to essentially count all the particles emitted in a collision. Event distributions as a function of track multiplicity were obtained as well as correlated event distributions. NUCLEAR REACTIONS He (proton or pion, fragments and pions), Ne (proton or pion, fragments and pions), E=1.5, 2.0, 2.5 BeV/c; streamer chamber gas used as target with fragment energies as low as 5 MeV. Measured multiplicities and correlations of produced particle types.

7 data tables
Table 1

CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.

Table 2

CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.

Table 3

CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.

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Recent Results From the Na35 Collaboration at {CERN}

The NA35 collaboration Harris, J.W. ; Bamberger, A. ; Bangert, D. ; et al.
Nucl.Phys.A 498 (1989) 133C-150C, 1989.
Inspire Record 271884 DOI 10.17182/hepdata.36948

Recent results from the NA35 Collaboration are presented for the reactions of 60 and 200 GeV/nucleon p and 16 O, and 200 GeV/nucleon 32 S with various targets ranging from S to Au. Midrapidity transverse energy distributions and forward energy flow, p⊥ spectra and rapidity distributions of hadrons are presented. Two-pion interferometry results are discussed. Neutral strange particle yields and p⊥ distributions are presented. Conclusions are drawn from the experimental results.

7 data tables
Table 1

No description provided.

Table 2

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Table 3

No description provided.

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Charged particle multiplicities in nuclear collisions at 200-GeV/N

The NA35 collaboration Bächler, J. ; Bartke, J. ; Bialkowska, H. ; et al.
Z.Phys.C 51 (1991) 157-162, 1991.
Inspire Record 320907 DOI 10.17182/hepdata.14983

Data on multiplicities of charged particles produced in proton-nucleus and nucleus-nucleus collisions at 200 GeV per nucleon are presented. It is shown that the mean multiplicity of negative particles is proportional to the mean number of nucleons participating in the collision both for nucleus-nucleus and proton-nucleus collisions. The apparent consistency of pion multiplicity data with the assumption of an incoherent superposition of nucleon-nucleon collisions is critically discussed.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

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