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NSR database version of April 26, 2024.

Search: Author = A.S.Mare

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2022MA54      Phys.Rev. C 106, 054306 (2022)

A.S.Mare, A.Petrovici

Shape coexistence and isomeric states in ⁹⁴Pd within a beyond-mean-field approach

NUCLEAR STRUCTURE ⁹⁴Pd; calculated levels, J, π, B(E2), B(M1), E0 transition strength, spectroscopic quadrupole moments, occupation of the 1_p1/2, 1_p3/2, 1_d5/2, and 0_g9/2 valence spherical orbitals for the yrast band and lowest three 6⁺, 8⁺ states. ⁹⁴Ag; calculated levels, J, π. Calculations within the beyond-mean-field complex excited Vampir model using an effective interaction derived from a nuclear matter G matrix based on the charge dependent Bonn CD potential in a large model space. Comparison to experimental results.

RADIOACTIVITY ^94,94mAg(β⁺); calculated Fermi strength distribution for the decay of the 0⁺ ground state, Gamow-Teller strength distribution for the decay of the 7⁺ isomer to 6⁺ and 8⁺ states in ⁹⁴Pd, Gamow-Teller accumulated strength, T_1/2. Comparison to experimental results.

doi: 10.1103/PhysRevC.106.054306
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2022MI15      Phys.Rev. C 106, 024332 (2022)

R.E.Mihai, A.S.Mare, N.Marginean, A.Petrovici, O.Andrei, M.Boromiza, D.Bucurescu, G.Cata-Danil, C.Clisu, C.Costache, I.Dinescu, D.Filipescu, N.Florea, I.Gheorghe, A.Ionescu, R.Lica, R.Marginean, C.Mihai, A.Mitu, A.Negret, C.R.Nita, A.Olacel, A.Oprea, S.Pascu, A.Serban, C.Sotty, L.Stan, R.Suvaila, S.Toma, A.Turturica, S.Ujeniuc, C.A.Ur

Search for isospin-symmetry breaking in the A=62 isovector triplet

NUCLEAR REACTIONS ⁵⁸Ni(⁶Li, 2n)⁶²Ga, E=22 MeV; measured Eγ, Iγ, nγ-coin, (2n)γ-coin, γ(θ) using ROSPHERE array with ten Compton-suppressed HPGe detectors and 11 LaBr3(Ce) detectors for γ rays, and two liquid scintillator neutron detector walls with 12 detectors each neutrons at the IFIN-HH 9-MV Tandem accelerator. ⁶²Ga; deduced levels, J, π, first 2+ state, multipolarities. Comparison with beyond-mean-field complex excited Vampir variational model. Discussed Coulomb energy differences (CED), mirror energy differences (MED), triplet energy differences (TED) for A=62 triplet. ⁵⁹Ni, ⁶²Cu, ⁶²Zn; observed γ rays.

NUCLEAR STRUCTURE ⁶²Ge, ⁶²Ga, ⁶²Zn; calculated energies of low-lying 0+, 2+ and 4+ analog states, B(E2) for ⁶²Zn, superallowed Fermi β decay strength distribution from ⁶²Ga decay to ⁶²Ge g.s., and compared with available experimental values.

doi: 10.1103/PhysRevC.106.024332
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2020PE03      Phys.Rev. C 101, 024307 (2020)

A.Petrovici, A.S.Mare

Triple shape coexistence and β decay of ⁹⁶Y to ⁹⁶Zr

RADIOACTIVITY ^96,96mY(β^-); calculated first-forbidden beta decay of the 0- ground state and Gamow-Teller strengths for beta decay of the 8+ isomer using the beyond-mean-field complex Excited Vampir model. ⁹⁶Zr; calculated E0 transition strengths of the 0+ states. Discussed influence of triple shape coexistence and mixing on the beta decay and E0 transitions. Comparison with experimental results.

doi: 10.1103/PhysRevC.101.024307
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2019PE11      Phys.Rev. C 100, 015810 (2019)

A.Petrovici, A.S.Mare, O.Andrei, B.S.Meyer

Impact of ⁶⁸Se and ⁷²Kr stellar weak interaction rates on rp-process nucleosynthesis and energetics

RADIOACTIVITY ⁶⁸Se, ⁷²Kr(β⁺), (EC); calculated stellar weak interaction rates of ground state and low-lying excited states using the beyond-mean-field complex excited Vampir model. Discussed impact on rp-process nucleosynthesis in type-I x-ray bursts and energetics.

doi: 10.1103/PhysRevC.100.015810
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