Nuclear structure of
Ni from the (
,
) reaction
Elekes, Z.*; Kripk
,
*; Sohler, D.*; Sieja, K.*; Ogata, Kazuyuki*; Yoshida, Kazuki
; Doornenbal, P.*; Obertelli, A.*; Authelet, G.*; Baba, Hidetada*; Calvet, D.*; Ch
teau, F.*; Corsi, A.*; Delbart, A.*; Gheller, J.-M.*; Gillibert, A.*; Isobe, T.*; Lapoux, V.*; Matsushita, Masafumi*; Momiyama, Satoru*; Motobayashi, Toru*; Otsu, Hideaki*; P
ron, C.*; Peyaud, A.*; Pollacco, E. C.*; Rouss
, J.-Y.*; Sakurai, Hiroyoshi*; Santamaria, C.*; Shiga, Y.*; Takeuchi, S.*; Taniuchi, R.*; Uesaka, T.*; Wang, H.*; Yoneda, Kenichiro*; Browne, F.*; Chung, L. X.*; Dombr
di, Zs.*; Flavigny, F.*; Franchoo, S.*; Giacoppo, F.*; Gottardo, A.*; Hady
ska-Kl
k, K.*; Korkulu, Z.*; Koyama, S.*; Kubota, Y.*; Lee, J.*; Lettmann, M.*; Louchart, C.*; Lozeva, R.*; Matsui, Keishi*; Miyazaki, T.*; Niikura, Megumi*; Nishimura, Shunji*; Olivier, L.*; Ota, Shinsuke*; Patel, Z.*; Sahin, E.*; Shand, C.*; S
derstr
m, P.-A.*; Stefan, I.*; Steppenbeck, D.*; Sumikama, Toshiyuki*; Suzuki, Daisuke*; Vajta, Zs.*; Werner, V.*; Wu, J.*; Xu, Z.*
The nuclear structure of the
Ni nucleus was investigated by (
,
) reaction using a NaI(Tl) array to detect the deexciting prompt
rays. A new transition with an energy of 2227 keV was identified by
and
coincidences. Our shell-model calculations using the Lenzi, Nowacki, Poves, and Sieja interaction produced good candidates for the experimental proton hole states in the observed energy region, and the theoretical cross sections showed good agreement with the experimental values. Although we could not assign all the experimental states to the theoretical ones unambiguously, the results are consistent with a reasonably large Z = 28 shell gap for nickel isotopes in accordance with previous studies.