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Odd-even Z isospin anomaly in heavy-ion reactions
Journal article   Peer reviewed

Odd-even Z isospin anomaly in heavy-ion reactions

L B Yang, E Norbeck, W A Friedman, O Bjarki, F D Ingram, R A Lacey, D J Magestro, M L Miller, A Nadasen, R Pak, …
Physical review. C, Nuclear physics, Vol.60(4), pp.416021-416024
1999
DOI: 10.1103/PhysRevC.60.041602

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Abstract

Intermediate mass fragment (IMF) production is different for the reaction pair Fe-58+Fe-58 and Ni-58+Ni-58 for which the only difference is the ratio N/Z, 1.23 for Fe-58 and 1.07 for Ni-58. For beam-velocity fragments at 5.4 degrees with Z from 3 to 15 the more proton-rich Ni reaction produces more even-Z IMFs than the Fe reaction. The ratio (number of IMFs from Ni-58+Ni-58)/(number of IMFs from Fe-58+Fe-58) as a function of Z is about 10% larger for even-Z values than for odd-Z values. The magnitude of this odd-even effect is about the same for beam energies with E/A=45, 75, and 105 MeV. [S0556-2813(99)50509-8].
Physical Sciences Physics Physics, Nuclear Science & Technology

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