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Collectivity of neutron-rich Ti isotopes

Abstract : The structure of the neutron-rich nucleus 58Ti was investigated via proton inelastic scattering in inverse kinematics at a mean energy of 42.0 MeV/nucleon. By measuring the deexcitation γ 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 δp,p′ was extracted from the cross section to be 0.83−0.30+0.22 fm. The energy of the first 2+ state and the δp,p′ value are comparable to the ones of 56Ti, which indicates that the collectivity of the Ti isotopes does not increase significantly with neutron number until N=36. This fact indicates that 58Ti is outside of the region of the deformation known in the neutron-rich nuclei around N=40.
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http://hal.in2p3.fr/in2p3-00865441
Contributor : Sophie Heurteau <>
Submitted on : Tuesday, September 24, 2013 - 2:41:12 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:30 PM

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H. Suzuki, N. Aoi, E. Takeshita, S. Takeuchi, S. Ota, et al.. Collectivity of neutron-rich Ti isotopes. Physical Review C, American Physical Society, 2013, 88, pp.024326. ⟨10.1103/PhysRevC.88.024326⟩. ⟨in2p3-00865441⟩

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