AI Article Synopsis
- The Doppler shift attenuation method was used to measure the lifetimes of states in the positive parity band of 106Cd, revealing a decrease in B(E2) transition rates as spin increases.
- Cranking and semiclassical model calculations indicate that the observed band has shears-type characteristics due to the coupling of g(9/2) proton holes and aligned pairs of h(11/2) and g(7/2) neutrons.
- This study provides the first clear evidence for "antimagnetic" rotation in nuclear physics.
Article Abstract
Lifetimes of states in the lowest lying positive parity band in 106Cd have been measured using the Doppler shift attenuation method. The deduced B(E2) transition rates show a marked decrease with increasing spin. Cranking and semiclassical model calculations suggest that the structure has the character of a shears-type band resulting from the coupling of g(9/2) proton holes to aligned pairs of h(11/2) and g(7/2) neutron particles. This is the first clear evidence for the phenomenon of "antimagnetic" rotation in nuclei.
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| http://dx.doi.org/10.1103/PhysRevLett.91.162501 | DOI Listing |
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