Investigation of the Production of Slow Particles in 60 A GeV 16O Induced Nuclear Emulsion Reaction

  • The multiplicity distributions and correlations of grey track producing particles(Ng), black track producing particles(Nb) and heavy track producing particles(Nh) have been studied in 60 A GeV 16O induced nuclear emulsion reaction. The multiplicity distributions of grey particles,black particles and heavy track producing particles can be reproduced by FRITIOF(version 1.7) taking cascade mechanism into account and DTUNUC 2.0 with an incident energy of 200 A GeV. The mean multiplicity of black particles b> increases with the number of grey particle Ng up to 10 and then exhibits a saturation for peripheral,central and mini-bias events;the average values of grey particles g>(heavy track producing particlesh>)inerease with increasing values of black particle Nb(grey particle Ng).
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  • [1] . Adamovich M I et al.(EMU01 Collaboration) .Phys.Lett.,1990 ,B234:180;1991,B262:369 2. Awes T ,Sorensen S P .Nucl.Phys.,1989,A498:123c 3. Barkas W H .Nuclear Research Emulsion ,New York :Academic Press,1963 4. Andersson B ,Otterlund I,Stenlund E.Phys.Lett.,1978,B73:343 5. Stenlund E ,Otterlund I.Nucl.Phys.,1982,B198:4076. Adamovich M I et al(EMU01 Collaboration).Z.Phys.,1995,C65:421 7. Capella A,Sukhatme U,Tan C I et al.Phys.Rep.,1994 ,236:227 8. Ferrari A ,Ranft J,Roseler S et al.Z.Phys.,1996,C71:75
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ZHANG Dong-Hai and SUN Han-Cheng. Investigation of the Production of Slow Particles in 60 A GeV 16O Induced Nuclear Emulsion Reaction[J]. Chinese Physics C, 2001, 25(7): 651-657.
ZHANG Dong-Hai and SUN Han-Cheng. Investigation of the Production of Slow Particles in 60 A GeV 16O Induced Nuclear Emulsion Reaction[J]. Chinese Physics C, 2001, 25(7): 651-657. shu
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Received: 2000-07-10
Revised: 1900-01-01
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Investigation of the Production of Slow Particles in 60 A GeV 16O Induced Nuclear Emulsion Reaction

    Corresponding author: ZHANG Dong-Hai,
  • Department of Physics,Shanxi Teachers' University,Linfen 041004,China2 China Institute of Atomic Energy,Beijing 102413,China

Abstract: The multiplicity distributions and correlations of grey track producing particles(Ng), black track producing particles(Nb) and heavy track producing particles(Nh) have been studied in 60 A GeV 16O induced nuclear emulsion reaction. The multiplicity distributions of grey particles,black particles and heavy track producing particles can be reproduced by FRITIOF(version 1.7) taking cascade mechanism into account and DTUNUC 2.0 with an incident energy of 200 A GeV. The mean multiplicity of black particles b> increases with the number of grey particle Ng up to 10 and then exhibits a saturation for peripheral,central and mini-bias events;the average values of grey particles g>(heavy track producing particlesh>)inerease with increasing values of black particle Nb(grey particle Ng).

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