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Electromagnetically induced nuclear-charge pickup observed in ultrarelativistic Pb collisions
C Scheidenberger1, I A Pshenichnov, T Aumann
1GSI, Planckstrasse 1, D-64291 Darmstadt, Germany.
Physical Review Letters
|January 22, 2002
Abstract:
A strong increase of inclusive nuclear-charge pickup cross sections, forming 83Bi from 158A GeV 82Pb ions, is observed in comparison to similar measurements at 10.6A GeV. From the dependence of these cross sections on target atomic number, this increase is attributed to the electromagnetic process of pion production by equivalent photons. The observed cross sections can be reproduced quantitatively using the recently developed RELDIS code.