Quenching of Single-Particle Strength in Nuclei
Physical Review Letters, 2022•APS
Absolute cross sections for the addition of s-and d-wave neutrons to C 14 and N 14 have
been determined simultaneously via the (d, p) reaction at 10 MeV/u. The difference between
the neutron and proton separation energies, Δ S, is around-20 MeV for the C 14+ n system
and+ 8 MeV for N 14+ n. The population of the 1 s 1/2 and 0 d 5/2 orbitals for both systems is
reduced by a factor of approximately 0.5 compared with the independent single-particle
model, or about 0.6 when compared with the shell model. This finding strongly contrasts with …
been determined simultaneously via the (d, p) reaction at 10 MeV/u. The difference between
the neutron and proton separation energies, Δ S, is around-20 MeV for the C 14+ n system
and+ 8 MeV for N 14+ n. The population of the 1 s 1/2 and 0 d 5/2 orbitals for both systems is
reduced by a factor of approximately 0.5 compared with the independent single-particle
model, or about 0.6 when compared with the shell model. This finding strongly contrasts with …
Absolute cross sections for the addition of - and -wave neutrons to and have been determined simultaneously via the reaction at . The difference between the neutron and proton separation energies, , is around for the system and for . The population of the and orbitals for both systems is reduced by a factor of approximately 0.5 compared with the independent single-particle model, or about 0.6 when compared with the shell model. This finding strongly contrasts with results deduced from intermediate-energy knockout reactions between similar nuclei on targets of and . The simultaneous technique used removes many systematic uncertainties.
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