ELECTROMAGNETIC DISSOCIATION OF 200 GEV/NUCLEON O-16 AND S-32 IONS IN NUCLEAR-EMULSIONS

被引：39

作者：

BARONI, G

BISI, V

BRESLIN, AC

DAVIS, DH

DELLUOMO, S

DILIBERTO, S

GIUBELLINO, P

GRELLA, G

HOSHINO, K

KAZUNO, M

KOBAYASHI, M

KODAMA, K

MARZARICHIESA, A

MAZZONI, MA

MEDDI, F

MUCIACCIA, MT

NIU, K

RAMELLO, L

ROMANO, G

ROSA, G

SGARBI, C

SHIBUYA, H

SIMONE, S

TOVEE, DN

USHIDA, N

WILKIN, C

YUEN, SKC

机构：

[1] IST NAZL FIS NUCL,BARI,ITALY

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] NATL UNIV IRELAND UNIV COLL DUBLIN,DEPT PHYS,DUBLIN 4,IRELAND

[4] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN

[5] AICHI UNIV EDUC,KARIYA,JAPAN

[6] UNIV LONDON UNIV COLL,DEPT PHYS & ASTRON,LONDON WC1E 6BT,ENGLAND

[7] NAGOYA UNIV,DEPT PHYS,NAGOYA,AICHI 464,JAPAN

[8] UNIV ROME LA SAPIENZA,DEPARTIMENTO FIS,I-00185 ROME,ITALY

[9] UNIV SALERNO,DEPARTIMENTO FIS,I-84100 SALERNO,ITALY

[10] IST NAZL FIS NUCL,ROME,ITALY

[11] IST NAZL FIS NUCL,SALERNO,ITALY

[12] UNIV SALERNO,SEZ MAT SCI & APPLICATA,I-84100 SALERNO,ITALY

[13] IST NAZL FIS NUCL,TURIN,ITALY

[14] UNIV TURIN,DEPARTIMENTO FIS,I-10124 TURIN,ITALY

来源：

NUCLEAR PHYSICS A | 1990年 / 516卷 / 3-4期

关键词：

Nuclear reactions;

D O I：

10.1016/0375-9474(90)90134-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

This work represents the results of an experimental investigation of the electromagnetic dissociation of 200 GeV/nucleon 16O and 32S 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. © 1990.

引用

页码：673 / 714

页数：42

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