Fragmentation cross-sections and binding energies of neutron-rich nuclei

Abstract

An exponential dependence of the fragmentation cross-section on the average binding energy is observed and reproduced with a statistical model. The observed functional dependence is robust and allows the extraction of binding energies from measured cross-sections. From the systematics of 75,77,78,79Cu isotope cross-sections have been extracted. They are 636.94 +/- 0.40 MeV, 647.1 +/- 0.4 MeV, 651.6 +/- 0.4 MeV and 657.8 +/- 0.5 MeV, respectively. Specifically, the uncertainty of the binding energy of 75Cu is reduced from 980 keV (listed value in the 2003 mass table of Audi and Wapstra) to 400 keV. The predicted cross-sections of two near drip-line nuclei, 39Na and 40Mg, from the fragmentation of 48Ca are discussed.

12 pages, 3 figures

References in corpus (3)

• High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
• Projectile Fragmentation of ${}^{86}$Kr at 64 MeV/nucleon
• Extrapolation of neutron-rich isotope cross-sections from projectile fragmentation

Cited by in corpus (9)

• Production of medium-mass neutron-rich nuclei in reactions induced by 136Xe projectiles at 1 A GeV on a beryllium target
• Transport Model Simulations of Projectile Fragmentation Reactions at 140 MeV/nucleon
• Temperature determined by isobaric yield ratio in heavy-ion collisions
• Bayesian evaluation of residual production cross sections in proton induced spallation reactions
• Neutron Density Distributions of Neutron-Rich Nuclei Studied with the Isobaric Yield Ratio Difference
• Model for projectile fragmentation: case study for Ni on Ta, Be and Xe on Al
• Isotopic ratio, isotonic ratio, isobaric ratio and Shannon information uncertainty
• A new phenomenological formula for ground state binding energies
• Experimental Determination of One- and Two-Neutron Separation Energies for Neutron-Rich Copper Isotopes