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Chinese Physics C> 2014, Vol. 38> Issue(1) : 014001 DOI: 10.1088/1674-1137/38/1/014001

Projectile fragment emission in the fragmentation of 56Fe on C, Al and CH2 targets at 471 A MeV

  • The emission angle and the transverse momentum distributions of projectile fragments produced in the fragmentation of 56Fe on CH2, C and Al targets at 471 A MeV are measured. It is found that for the same target, the average value and width of the angular distribution decrease with an increase of the projectile fragment charge; 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 a 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 a projectile fragment can be explained well by a single Rayleigh distribution. The temperature parameter of the emission source of the projectile fragment, calculated from the cumulated squared transverse momentum distribution, decreases with the increase of the size of the projectile fragment.
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LI Yan-Jing, ZHANG Dong-Hai, YAN Shi-Wei, WANG Li-Chun, CHENG Jin-Xia and LI Jun-Sheng. Projectile fragment emission in the fragmentation of 56Fe on C, Al and CH2 targets at 471 A MeV[J]. Chinese Physics C, 2014, 38(1): 014001. doi: 10.1088/1674-1137/38/1/014001
LI Yan-Jing, ZHANG Dong-Hai, YAN Shi-Wei, WANG Li-Chun, CHENG Jin-Xia and LI Jun-Sheng. Projectile fragment emission in the fragmentation of 56Fe on C, Al and CH2 targets at 471 A MeV[J]. Chinese Physics C, 2014, 38(1): 014001.  doi: 10.1088/1674-1137/38/1/014001 shu
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Received: 2013-01-28
Revised: 1900-01-01
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Projectile fragment emission in the fragmentation of 56Fe on C, Al and CH2 targets at 471 A MeV

    Corresponding author: ZHANG Dong-Hai,
  • Received Date: 2013-01-28
  • Accepted Date: 1900-01-01
  • Available Online: 2014-01-05

Abstract: The emission angle and the transverse momentum distributions of projectile fragments produced in the fragmentation of 56Fe on CH2, C and Al targets at 471 A MeV are measured. It is found that for the same target, the average value and width of the angular distribution decrease with an increase of the projectile fragment charge; 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 a 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 a projectile fragment can be explained well by a single Rayleigh distribution. The temperature parameter of the emission source of the projectile fragment, calculated from the cumulated squared transverse momentum distribution, decreases with the increase of the size of the projectile fragment.

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