Momentum distribution of projectile fragments and nuclear shape

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.R2890· OSTI ID:7116743

Harvey, B G ^[1]

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1. Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

When one or two neutrons are lost in a collision between a projectile with a diffuse neutron-rich surface and a target nucleus, the transverse momentum distribution of the fragments thus produced can be fit with a double Gaussian curve in which a narrow component is superimposed on a much broader one. It is shown that this phenomenon is also observed for fragments from the normal'' projectile [sup 12]C. A density-dependent nucleon Fermi momentum and fragment recoil with the momentum of the lost nucleon give good agreement with experiment. The two Gaussian components do not require the presence near the nuclear surface of nucleons with two widely different binding energies, as often supposed.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7116743
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BINDING ENERGY
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
DISTRIBUTION FUNCTIONS
ENERGY
ENERGY RANGE
FRAGMENTATION
FUNCTIONS
HEAVY ION REACTIONS
LINEAR MOMENTUM
NUCLEAR REACTIONS
OXYGEN 16 REACTIONS
RELATIVISTIC RANGE
TRANSVERSE MOMENTUM