The energy levels of the nucleus /sup 162/Er have been investigated by standard on-line gamma -ray spectroscopic methods using the /sup 165/Ho(p,4n gamma )/sup 162/Er reaction. Various rotational bands have been excited up to high spins; the ground-state band up to 16/sup +/; the gamma -band up to 11/sup +/ and maybe 12/sup +/; the odd-spin members of the negative-parity octupole band up to 13/sup -/; and a new band, with levels of spins 4, 6, 8, 10 and 12, which could be the even-spin part of the negative-parity octupole band. The results are compared with various theoretical models. The absolute cross sections for the /sup 165/Ho(p,/b x/n)/sup 166-x/Er reactions between /b E //sub p/=30 and 51 MeV have also been measured for /b x/=2 to 6.
Janssens, R., Steyaert, J., Masri, Y. El., Ferte, J. M., Michel, C., & Vervier, J. (1977). Energy levels of /sup 162/Er through the /sup 165/Ho(p,4n gamma )/sup 162/Er reaction. Nuclear Physics, Section A, A283(3), 493-520. https://hdl.handle.net/2078.5/42017 (Original work published 1977)