HEPData Search

This paper presents exhaustive, new data on the shower and compound multiplicity charactersties of 24 Mg-emulsion and 12 C-emulsion interactions at incident momentum of 4.5 GeV/ c per nucleon. A comparative study is made (whenever possible) with p-emulsion interaction data at the same incident momentum per nucleon. The linear dependences of different multplicities on shower and compound multiplicity, e.g., 〈 n i 〉 = a ij + k ij n j -( i ≠ j ), are also shown in this paper.

9 data tables

Table 1

NUCLEUS IS EMULSION NIKFI-BR2.

Table 2

NUCLEUS IS EMULSION NIKFI-BR2.

Table 3

NUCLEUS IS EMULSION NIKFI-BR2.

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PROPERTIES OF PROJECTILE FRAGMENTS FROM C-12 EMULSION INTERACTIONS AT 4.5.A/GEV/C

Ahmad, M.S. ; Khan, M.Q.R. ; Hasan, R. ;

Nucl.Phys.A 499 (1989) 821-836, 1989.

Inspire Record 286250 DOI 10.17182/hepdata.36940

2550 interactions of 12 C in emulsion at 4.5 A GeV / c have been used to study the properties of projectile fragments. The multiplicity and projected angular distributions of projectile fragments in different target groups have been studied. The production cross section of the reaction in which projectile 12 C breaks up into two Z = 3 fragments is found to be 6.6 × 10 −3 of the total inelastic cross section. The projected angular distributions of fragments exhibit features of limiting fragmentation. Statistically significant azimuthal correlations among fragments in the azimuthal plane indicates that the fragmenting nucleus gets a transverse momentum during the collision.

13 data tables

Table 1

No description provided.

Table 2

NUCLEUS IS CNO.

Table 3

NUCLEUS IS AGBR.

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The reaction H-3 p --> p n d at a H-3 nucleus momentum 5-GeV/c.

Abdullin, S.K. ; Blinov, A.V. ; Vanyushin, I.A. ; et al.

Sov.J.Nucl.Phys. 50 (1989) 250-254, 1989.

Inspire Record 281654 DOI 10.17182/hepdata.40028

None

1 data table

Table 1

No description provided.

RESULTS OF ELECTRONIC EXPERIMENTS IN STUDYING THE REACTION alpha (pi+-, p) + A (C, Al, Cu, Cd, Pb) ---> LAMBDA0 + X

Vorobev, L.S. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.

ITEP-89-27, 1989.

Inspire Record 278858 DOI 10.17182/hepdata.40114

None

26 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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rivet Analysis
Measurement of Inclusive $\gamma$, $\pi^0$ and $\eta$ Production in $e^+ e^-$ Annihilation at $s^1$/2 = 35-{GeV}

The CELLO collaboration Behrend, H.J. ; Criegee, L. ; Dainton, J.B. ; et al.

Z.Phys.C 47 (1990) 1-10, 1990.

Inspire Record 276764 DOI 10.17182/hepdata.15278

We have measured the inclusive production of γ, π0 and η ine+e− annihilation at the center of mass energy of 35 GeV. The differential cross sections, extended to the kinematical limit and measured with high accuracy, are found to be in good agreement with previously reported results. Using the measured spectra we determine the average multiplicity for each of these particle species.

5 data tables

Table 1

No description provided.

Table 2

Statistical errors only.

Table 3

Statistical errors only.

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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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PRODUCTION OF SOFT PIONS IN H A INTERACTIONS

Vorobev, L.S. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.

JETP Lett. 49 (1989) 670-674, 1989.

Inspire Record 287792 DOI 10.17182/hepdata.16848

None

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Transverse Momentum Distributions of Neutral Pions From Central and Peripheral $^{16}$O + Au Collisions at 200-a/{GeV}

The WA80 collaboration Albrecht, R. ; Awes, T.C. ; Baktash, C. ; et al.

Z.Phys.C 47 (1990) 367-376, 1990.

Inspire Record 276573 DOI 10.17182/hepdata.15159

The production of neutral pions by the interaction of 200A·GeV p and16O projectiles with a Au target has been studied in the pseudorapidity range 1.5≦η≦2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and α+α data from the ISR.

4 data tables

Table 1

Data obtained with minimum bias trigger conditions.

Table 2

Data obtained with minimum bias trigger conditions.

Table 3

Data for central collisions.

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A Study of $K^0_S$, $\Lambda$ and $\bar{\Lambda}$ Production in 60-{GeV} and 200-{GeV} Per Nucleon O Au and $p$ Au Collisions With a Streamer Chamber Detector at the {CERN} {SPS}

The NA35 collaboration Bamberger, A. ; Bartke, J. ; Bialkowska, H. ; et al.

Z.Phys.C 43 (1989) 25, 1989.

Inspire Record 276686 DOI 10.17182/hepdata.15456

The production of neutral strange particlesKso, Λ and$\bar \Lambda $ has been studied in 60 and 200 GeV per nucleon OAu and pAu collisions with the streamer chamber vertex spectrometer of the NA35 experiment at the CERN-SPS accelerator. Ratios of neutral strange particle production to negatively charged particle production in selected regions of phase space were measured to be the same in OAu and pAu reactions. The rates of strange particle production in central OAu collisions are about a factor of 16 higher than in pAu collisions when compared in the same regions of phase space. If an enhancement of strange particle production in OAu collisions relative to pAu collisions is considered to be a signature for quark-gluon plasma formation, no evidence supporting it is observed. The experimental results are compared to the Lund FRITIOF model.

22 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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RESONANCE PATTERN OF LOW MASS MUON PAIRS PRODUCED IN 38-GEV/C PI- C INTERACTIONS.

MULTIPLICITY CHARACTERISTICS OF HEAVY ION INTERACTIONS AT 4.5-GEV/C PER NUCLEON

PROPERTIES OF PROJECTILE FRAGMENTS FROM C-12 EMULSION INTERACTIONS AT 4.5.A/GEV/C

The reaction H-3 p --> p n d at a H-3 nucleus momentum 5-GeV/c.

RESULTS OF ELECTRONIC EXPERIMENTS IN STUDYING THE REACTION alpha (pi+-, p) + A (C, Al, Cu, Cd, Pb) ---> LAMBDA0 + X

rivet Analysis
Measurement of Inclusive $\gamma$, $\pi^0$ and $\eta$ Production in $e^+ e^-$ Annihilation at $s^1$/2 = 35-{GeV}

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

PRODUCTION OF SOFT PIONS IN H A INTERACTIONS

Transverse Momentum Distributions of Neutral Pions From Central and Peripheral $^{16}$O + Au Collisions at 200-a/{GeV}

A Study of $K^0_S$, $\Lambda$ and $\bar{\Lambda}$ Production in 60-{GeV} and 200-{GeV} Per Nucleon O Au and $p$ Au Collisions With a Streamer Chamber Detector at the {CERN} {SPS}