Projectile fragment emission in the fragmentation of 56Fe on Al, C and CH2 targets
Authors:
Luo-Huan Wang,
Liang-Di Huo,
Jia-Huan Zhu,
Hui-Ling Li,
Jun-Sheng Li,
S. Kodaira,
N. Yasuda,
Dong-Hai Zhang
Abstract:
The emission angle distribution of projectile fragments (PFs) and the temperature of PFs emission source for fragmentation of $^{56}$Fe on polyethylene, carbon and aluminum targets at the highest energy of 496 A MeV are investigated using CR-39 plastic nuclear track detector. It is found that the averaged emission angle of PFs increases with the decrease of PF charge for the same target, and no ob…
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The emission angle distribution of projectile fragments (PFs) and the temperature of PFs emission source for fragmentation of $^{56}$Fe on polyethylene, carbon and aluminum targets at the highest energy of 496 A MeV are investigated using CR-39 plastic nuclear track detector. It is found that the averaged emission angle of PFs increases with the decrease of PF charge for the same target, and no obvious dependence of angular distribution on the mass of target nucleus is found for the same PF. The cumulated squared transverse momentum distribution of PF can be well represented by a single Rayleigh distribution, the temperature of PFs emission source is extracted from the distribution, which is about 1.0-8.0 MeV and do not depend on the mass of target for PF with charge of 9<=Z<=25.
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Submitted 11 April, 2019;
originally announced April 2019.
Projectile fragment emission in fragmentation of $^{56}$Fe on C, Al,and CH$_{2}$ targets at 471 A MeV
Authors:
Y. J. Li,
D. H. Zhang,
S. W. Yan,
L. C. Wang,
J. X. Cheng,
J. S. Li,
S. Kodaira,
N. Yasuda
Abstract:
The emission angle and the transverse momentum distributions of projectile fragments produced in fragmentation of $^{56}$Fe on CH$_{2}$, C, and Al targets at 471 A MeV are measured. It is found that for the same target the average value and width of angular distribution decrease with increase of the projectile fragment charge, and for the same projectile fragment the average value of the distribut…
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The emission angle and the transverse momentum distributions of projectile fragments produced in fragmentation of $^{56}$Fe on CH$_{2}$, C, and Al targets at 471 A MeV are measured. It is found that for the same target the average value and width of angular distribution decrease with increase of the projectile fragment charge, and for the same projectile fragment the average value of the distribution increases and the width of the distribution decreases with increasing the target charge number. The transverse momentum distribution of projectile fragment can be explained by a single Gaussian distribution and the averaged transverse momentum per nucleon decreases with the increase of the charge of projectile fragment. The cumulated squared transverse momentum distribution of projectile fragment can be well explained by a single Rayleigh distribution. The temperature parameter of emission source of projectile fragment, calculated from the cumulated squared transverse momentum distribution, decreases with the increase of the size of projectile fragment.
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Submitted 17 September, 2013;
originally announced September 2013.