Interactions of 10.6 GeV/n gold nuclei with light and heavy target nuclei in nuclear emulsion

Cherry, M.L. ; Dabrowska, A. ; Deines-Jones, P. ; et al.
Z.Phys.C 63 (1994) 549-556, 1994.
Inspire Record 1385260 DOI 10.17182/hepdata.14108

We have investigated the particle production and fragmentation of nuclei participating in the interactions of 10.6 GeV/n gold nuclei in nuclear emulsions. A new criterion has been found to distinguish between the interactions of these gold nuclei with the light (H,C,N,O) and heavy (Ag, Br) target nuclei in the emulsion. This has allowed separate analyses of the multiplicity and pseudo-rapidity distributions of the singly charged particles emitted in Au-(H,C,N,O) and Au-(Ag,Br) interactions, as well as of the modes of breakup of the projectile and target nuclei. The pseudo-rapidity distributions show strong forward asymmetries, particularly for the interactions with the light nuclei. Heavy target nuclei produce a more severe breakup of the projectile gold nucleus than do the lighter targets. A negative correlation between the number of fragments emitted from the target nuclei and the degree of centrality of the collisions has been observed, which can be attributed to the total destruction of the relatively light target nuclei by these very heavy projectile nuclei.

4 data tables

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APPLICATION OF ROBUST FITTING TO DETERMINATION OF ISOBARIC CROSS-SECTIONS OF RESIDUAL NUCLEI IN RELATIVISTIC INTERACTIONS

Damdinsuren, Ts. ; Kozma, P. ; Zlokazov, V.B. ;
JINR-P1-88-312, 1988.
Inspire Record 265677 DOI 10.17182/hepdata.39436

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3 data tables

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Electromagnetic Dissociation of 200-{GeV}/$N ^{16}$O and $^{32}$S Ions in Nuclear Emulsions

Baroni, G. ; Bisi, V. ; Breslin, A.C. ; et al.
Nucl.Phys.A 516 (1990) 673-714, 1990.
Inspire Record 294682 DOI 10.17182/hepdata.36830

This work represents the results of an experimental investigation of the electromagnetic dissociation of 200 GeV/nucleon 16 O and 32 S ions in nuclear emulsions. Exclusive channels involving charged fragments have been studied as a function of the energy released, and, assuming a Weizsäcker-Williams spectrum of virtual photons, there is a good agreement with results for the (γ, p) processes obtained with real photons. However, the rates found for other processes are larger, in particular for the (γ, α) on both nuclei. The values of the total integrated absorption cross sections are generally larger than those obtained from real photon experiments but the extent of the discrepancy depends strongly upon which photon results are used in the comparison.

6 data tables

ELECTROMAGNETIC DISSOCIATION IN NUCLEAR EMULSION.

ELECTROMAGNETIC DISSOCIATION IN NUCLEAR EMULSION.

NUCLEUS IS THE EMULSION.

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