HEPData Search

Showing 8 of 8 results

Central Collisions of 14.6-{GeV}/nucleon, 60-{GeV}/nucleon, and 200-{GeV}/nucleon $^{16}$O Nuclei in Nuclear Emulsion

Barbier, L.M. ; Freier, P.S. ; Holynski, R. ; et al.

Phys.Rev.Lett. 60 (1988) 405-407, 1988.

Inspire Record 264260 DOI 10.17182/hepdata.2969

Central collisions of O16 nuclei with the Ag107 and Br80 nuclei in nuclear emulsion at 14.6, 60, and 200 GeV/nucleon are compared with proton-emulsion data at equivalent energies. The multiplicities of produced charged secondaries are consistent with the predictions of superposition models. At 200 GeV/nucleon the central particle pseudorapidity density is 58±2 for those events with multiplicities exceeding 200 particles.

5 data tables

Table 1

Nucleus is average nucleus of BR-2 emulsion.

Table 2

Nucleus is average nucleus of BR-2 emulsion.

Table 3

Nucleus is average AG107/BR80 nucleus of BR-2 emulsion.

More…

Interactions of ultrarelativistic oxygen nuclei in emulsion

El-Nadi, M. ; El-Nagdy, M.S. ; Abd-Alla, A.M. ;

Phys.Rev.C 48 (1993) 870-876, 1993.

Inspire Record 363778 DOI 10.17182/hepdata.4987

The results of the multiplicity distributions of shower, grey, black, and heavily ionizing charged particles from induced16 reactions at 200A GeV are presented. The results are compared with the predictions of the Lund Monte Carlo code fritiof, the multichain model by Ranft, and the Monte Carlo code venus.

6 data tables

Table 1

NUCLEUS - AVERAGE NUCLEI OF EMULSION.

Table 2

NUCLEUS - AVERAGE NUCLEI OF EMULSION.

Table 3

NUCLEUS - AVERAGE NUCLEI OF EMULSION.

More…

Direct electron pair production by 6.4-TeV S-32 emulsion interactions

Kamel, S. ;

Phys.Lett.B 368 (1996) 291-298, 1996.

Inspire Record 428062 DOI 10.17182/hepdata.28411

A search for direct electron pairs was performed at the 6.4 TeV 32 S emulsion interactions at CERN. A total of 81 directly produced electron pairs have been observed, with an average number per interaction of about two. The results have been analysed in the light of the predictions of quantum electrodynamical calculations. A simple interpretation for the extracted results based on the virtual mass distribution is presented. The experimental results are in partial agreement with the present theories. The virtual mass distribution does not show a 1/m behaviour.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

CORRELATIONS OVER MULTIPLICITY BETWEEN NEGATIVE PIONS AND PROTONS: PARTICIPANTS IN C Ta INTERACTIONS AT 4.2-GeV/c PER NUCLEON MOMENTUM

Backovic, S. ; Boldea, V. ; Grishin, V.G. ; et al.

Sov.J.Nucl.Phys. 50 (1989) 1001-1005, 1989.

Inspire Record 269366 DOI 10.17182/hepdata.38833

None

5 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Characteristics of helium fragments produced in Si-28 emulsion interactions at 14.5-A-GeV

Singh, G. ; Ismail, A.Z.M. ; Jain, P.L. ;

Phys.Rev.C 43 (1991) 2417-2421, 1991.

Inspire Record 323101 DOI 10.17182/hepdata.26112

We report the measurements on partial production cross sections of the multiple helium fragments emitted in the interactions of Si28 ions at 14.5A GeV in nuclear emulsion. Interaction mean free paths of the helium fragments have been investigated on the basis of helium multiplicity and size of the target nucleus as a function of the distance from their production points. Multiplicity scaling in the produced helium fragments is also observed.

5 data tables

Table 1

FIRST REACTION RESPECTS CENTRAL, SECOND - PERIPHERAL INELASTIC INTERACTION.

Table 2

FIRST REACTION RESPECTS CENTRAL, SECOND - PERIPHERAL INTERACTION. THIRD REACTION RESPECT 0HE PRODUCTION.

Table 3

MULT(FRAGT) IS AVERAGED NUMBER OF HEAVY TRACKS FROM THE TARGET NUCLEUS, MULT(SHOWER) IS AVERAGED NUMBER OF MINIMUM IONIZING SHOWER TRACKS WHICH INCLUDED THE NUMBER OF SINGLY CHARGED PROJECTILE PROTON TRACKS.

More…

Comparison of nucleus-nucleus interactions at 14.5-A/GeV - 200-A/GeV with the multistring model VENUS

Jain, P.L. ; Singh, G. ; Sengupta, K. ;

Phys.Rev.C 43 (1991) 2027-2030, 1991.

Inspire Record 314429 DOI 10.17182/hepdata.26179

None

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

On the Production of Helium Fragments in Ultrarelativistic Heavy Ion Collisions

Sengupta, K. ; Singh, G. ; Jain, P.L. ;

Phys.Lett.B 222 (1989) 301-305, 1989.

Inspire Record 25611 DOI 10.17182/hepdata.29805

Partial production cross sections of projectile alpha fragments produced in high-energy interactions of 16 O and 32 S at 200 GeV/n and 16 O at 60 GeV/n in emulsion are studied. Evidence of multiplicity scaling of such produced fragments is presented in the energy range 2–200 GeV/n for various projectiles.

7 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.