1. New Levels in 162Gd
DOLL Brayton M. (NBPHS, Vanderbilt University) BREWER, N.T. (Vanderbilt University) HAMILTON, J. H. (Vanderbilt University) RAMAYYA, A. V. (Vanderbilt University) HWANG, J.K. (Vanderbilt University) LUO, Y. X. (Vanderbilt University, LBNL) RASMUSSEN, J. O. (LBNL) ZHU, S. J. (Vanderbilt University, Tsinghua University) TER-AKOPIAN, G. M. (JINR)

2. Experimental Details Lawrence Berkeley National Laboratory
Gammasphere Detector Array with 101 Compton-suppressed Ge Detectors
252Cf Source of 62 μCi
Total of 5.7∗1011 triple and higher – fold γ-γ-γ coincidence events (in cube)
Radware software package to analyze data

3. Results 162Gd 64 New levels in red
Yrast states known from J. Phys. G: Nucl. Part. Phys. 30 (2004)
2+ state at assigned in Physica Scripta. Vol. 34, , (1986)
Other assignments based on systematics of other Gd nuclei.

4. 704.5- partner transition from 86Se
Proof of 753.8
Gate on 165 and 254
336.3, 411.9, 480.5
From yrast band
New transition
partner transition from 86Se

5. 162Gd 64
New levels in red

6. Proof of 753.8
Gate on 253 and 753

7. 162Gd 64
New levels in red

8. Physics of Deformed Nuclei
Nuclei near midpoints between spherical shells are known to be well deformed
Elevel = A∗I (I+1)
Small First Exited State
Presence of vibrational bands

9. Members of a gamma vibrational band
Band Structure
Rotational Band
162Gd 64
Members of a gamma vibrational band

10. Conclusion
From our study of the spontaneous fission Californium-252 we found, for the first time:
Six levels and nine gammas in 162Gd. We see nuclear structure consistent with that of a quadrupole deformed nucleus.

11. References and Acknowledgements
J.H. Hamilton et.al., Prog. Part. Nucl. Phys., 35, , (1995)
D.C. Radford, Nucl. Instr. Meth. A, 361, , (1995)
Wahl, A, At. Data Nucl. Data Tables 39, 1, (1988)
E.F. Jones et.al., J. Phys. G: Nucl. Part. Phys. 30 (2004)
G. Løvhøiden, T.F. Thorsteinsen, D.G. Burke, Physica Scripta. Vol. 34, , (1986)