Related Experiment Video
Updated: Apr 20, 2026

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
Published on: April 13, 2022
Quadrupole transition strength in the (74)Ni nucleus and core polarization effects in the neutron-rich Ni isotopes
T Marchi1, G de Angelis2, J J Valiente-Dobón2
1Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy and Dipartimento di Fisica e Astronomia dell'Università degli Studi di Padova, 35131 Padova, Italy.
Abstract:
The reduced transition probability B(E2;0(+)→2(+)) has been measured for the neutron-rich nucleus (74)Ni in an intermediate energy Coulomb excitation experiment performed at the National Superconducting Cyclotron Laboratory at Michigan State University. The obtained B(E2;0(+)→2(+))=642(-226)(+216) e(2) fm(4) value defines a trend which is unexpectedly small if referred to (70)Ni and to a previous indirect determination of the transition strength in (74)Ni. This indicates a reduced polarization of the Z=28 core by the valence neutrons. Calculations in the pfgd model space reproduce well the experimental result indicating that the B(E2) strength predominantly corresponds to neutron excitations. The ratio of the neutron and proton multipole matrix elements supports such an interpretation.
More Related Videos
Related Concept Videos
Atomic Nuclei: Nuclear Spin State Overview
Atomic Nuclei: Nuclear Spin
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute...
Nuclear Stability
To hold positively...
Atomic Nuclei: Nuclear Spin State Population Distribution
Atomic Nuclei: Nuclear Magnetic Moment
Atomic Nuclei: Nuclear Relaxation Processes

