الفهرس 
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Abstract
into account.
Table 5.2 The ED cross sections for 325 at 200 Ge1f/nucleon. The experimental
nuclear cross sections (J”~?c; are taken from Ref. [139].
Target expt (J”E’J)(.0,Z = 0) (J”calc(.0,Z> 1) (J”total
(J”nucl ED - ED
(mb) (mb) (mb) (mb)
H 0.17 0.93 1.1
12C 1246 ± 21 5.4 28.32 (23 ± 28) 33.7
27Al 1756 ± 27 24.3 125.76 (79 ± 38) 150.1
64Cu 2370 ± 70 115.9 587.8 (730 ± 85) 703.7
108Ag 2935 ± 100 296.6 1486.2( 1790 ± 120) 1782.8
208Pb 3930 ± 140 873.4 4299.28 (4630 ± 180) 5172.68
5.5 Conclusion
• The total ED cross section has been calculated for 160 and 325 with
different targets at relativistic energies. The calculations agree quantitatively
with the experimental data in the case of 325 as a projectile.
• The ED cross section is enhanced both by the charge of the target
and the energy of the projectile.
• The ED mainly results in production of fragments with charge 1 or
2 units lower than the original nucleus.