Collectivity of neutron-rich Ti isotopes

Autor: Kensuke Kusaka, M. K. Suzuki, Taro Nakao, Hiroyoshi Sakurai, Toshiyuki Minemura, K. Kurita, Takahiro Fukui, Hidetada Baba, M. Tamaki, N. Imai, Kazuo Ieki, R. Sugo, T. Nakabayashi, Eiji Ideguchi, Megumi Niikura, Satoshi Takeuchi, Yasuhiro Togano, E. Takeshita, Takashi Nakamura, Y. Hashimoto, Susumu Shimoura, Hiroshi Suzuki, H. Iwasaki, N. Aoi, K. Tanaka, Tsuyoshi Ohnishi, T. Kubo, S. Kanno, Yosuke Kondo, D. Suzuki, Masamichi Ishihara, Shinsuke Ota, Shawn Bishop, Hooi Jin Ong, K. Yamada, Tohru Motobayashi, T. Okumura
Přispěvatelé: Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Physical Review C
Physical Review C, American Physical Society, 2013, 88, pp.024326. ⟨10.1103/PhysRevC.88.024326⟩
ISSN: 2469-9985
2469-9993
DOI: 10.1103/PhysRevC.88.024326⟩
Popis: The structure of the neutron-rich nucleus ${}^{58}$Ti was investigated via proton inelastic scattering in inverse kinematics at a mean energy of 42.0 MeV/nucleon. By measuring the deexcitation $\ensuremath{\gamma}$ rays, three transitions with the energies of 1046(11) keV, 1376(18) keV, and 1835(27) keV were identified. The angle-integrated cross section for the 1046-keV excitation, which corresponds to the decay from the first 2${}^{+}$ state, was determined to be 13(7) mb. The deformation length ${\ensuremath{\delta}}_{p,{p}^{\ensuremath{'}}}$ was extracted from the cross section to be ${0.83}_{\ensuremath{-}0.30}^{+0.22}$ fm. The energy of the first 2${}^{+}$ state and the ${\ensuremath{\delta}}_{p,{p}^{\ensuremath{'}}}$ value are comparable to the ones of ${}^{56}$Ti, which indicates that the collectivity of the Ti isotopes does not increase significantly with neutron number until $N=36$. This fact indicates that ${}^{58}$Ti is outside of the region of the deformation known in the neutron-rich nuclei around $N=40$.
Databáze: OpenAIRE