Abstract
Intruder rotational bands have been investigated to high frequency in 10951Sb. Five decoupled (ΔI=2) bands extending to rotational frequencies above 1.4 MeV/ℏ have been observed. At the highest frequencies, the script J sign(2) dynamic moments of inertia for four of these bands are seen to decrease steadily to unexpectedly low values, script J sign(2) ∼ 10 ℏ2 MeV-1. These four bands, which are interpreted as being based on deformed 2p-2h proton excitations across the Z=50 closed-shell gap, achieve the so-called "smooth band termination" following alignment of the valence nucleons outside of 100Sn. In addition, two strongly coupled (ΔI=1) bands have been observed, which are related to 1p-1h proton excitations across the gap.
Original language | English |
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Pages (from-to) | 1598-1609 |
Number of pages | 12 |
Journal | Physical Review C - Nuclear Physics |
Volume | 54 |
Issue number | 4 |
DOIs | |
Publication status | Published - Oct 1996 |