Razvan Lica
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Razvan Lica has a total of 1000 co-authors. Here are the top co-authors by number of shared publications:
- Luis Mario Fraile
Universidad Complutense de Madrid
31 shared publications - Alexandru Negret
Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH)
28 shared publications C. Mihai
23 shared publications- Constantin Mihai
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
23 shared publications - Dorel Bucurescu
National Institute for Physics and Nuclear Engineering
21 shared publications N. Mărginean
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
20 shared publications
Latest Publications
- Open Access
- 13 November 2026
- Published by Elsevier in Physics Letters B
Unveiling the structure of excited 0+ states in 32Si
- 13 November 2026
- Published by Elsevier in Physics Letters B
Open AccessUnveiling the structure of excited 0+ states in 32Si
- Open Access
- 13 November 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 114 (5)
Sizeable mixing between the coexisting normal and intruder structures of Zr 96 revealed through lifetime measurements
Lifetimes of excited states of the nucleus Zr 96 were studied with the Doppler-shift attenuation method following the Zr 94 ( O 18 , O 16 ) Zr 96 two-neutron transfer reaction. The obtained B ( E 2 ; 2 2 + → 0 2 + ) and B ( E 2 ; 4 1 + → 2 2 + ) transition strengths, amounting to 26 ( 2 ) and 39 ( 7 ) W . u . , respectively, firmly attribute the 2 2 + and 4 1 + states to the collective intruder band built on top of the 0 2 + state. The nature of this structure is discussed against predictions of the collective model using the Bohr Hamiltonian, the interacting boson model with configuration mixing, and the quasiparticle vacua shell model. The collective, interband B ( E 2 ; 4 1 + → 2 1 + ) = 11.2 ( 8 ) W . u . transition strength, refuting the previously assumed purity of both structures, is reproduced in the calculations. The quasiparticle vacua shell model predicts, in agreement with a simple two-state model based on experimental E 2 transition strengths, considerable mixing between the normal and intruder 2 + states.
- 13 November 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 114 (5)
Open AccessSizeable mixing between the coexisting normal and intruder structures of Zr 96 revealed through lifetime measurements
Lifetimes of excited states of the nucleus Zr 96 were studied with the Doppler-shift attenuation method following the Zr 94 ( O 18 , O 16 ) Zr 96 two-neutron transfer reaction. The obtained B ( E 2 ; 2 2 + → 0 2 + ) and B ( E 2 ; 4 1 + → 2 2 + ) transition strengths, amounting to 26 ( 2 ) and 39 ( 7 ) W . u . , respectively, firmly attribute the 2 2 + and 4 1 + states to the collective intruder band built on top of the 0 2 + state. The nature of this structure is discussed against predictions of the collective model using the Bohr Hamiltonian, the interacting boson model with configuration mixing, and the quasiparticle vacua shell model. The collective, interband B ( E 2 ; 4 1 + → 2 1 + ) = 11.2 ( 8 ) W . u . transition strength, refuting the previously assumed purity of both structures, is reproduced in the calculations. The quasiparticle vacua shell model predicts, in agreement with a simple two-state model based on experimental E 2 transition strengths, considerable mixing between the normal and intruder 2 + states.
- Open Access
- 18 September 2026
- Published by Elsevier in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
- Vol. 581
Production and isomeric ratio of long-lived 11/2− xenon isomers at ISOLDE, CERN
- 18 September 2026
- Published by Elsevier in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
- Vol. 581
Open AccessProduction and isomeric ratio of long-lived 11/2− xenon isomers at ISOLDE, CERN
- Open Access
- 15 September 2026
- Published by Elsevier in Physics Letters B
- Vol. 881
Onset of the j−1 anomaly in 103Ag
- 15 September 2026
- Published by Elsevier in Physics Letters B
- Vol. 881
Open AccessOnset of the j−1 anomaly in 103Ag
- Open Access
- 11 September 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (10)
Evaluation of the \(^{89m}\)Y Half-life DataPrecise determination of the \(^{89m}\)Y isomeric half-life is critical for nuclear structure models and activation analysis. However, historical measurements exhibit a long-standing, unresolved scatter. With the present work, we aim to resolve this statistical tension by introducing a high-resolution low-background half-life measurement and evaluating historical dataset. The \(^{89m}\)Y half-life was measured by using the high-energy resolution HPGe detectors of RoSphere. Statistical analysis was performed on the \(909\gamma (t)\) data, obtained in 11 independent measurements. This dataset is highly consistent, displaying a near-ideal reduced chi-squared (\(\chi ^2\)/n.d.f.) of 0.91. Conversely, the statistical analysis, performed on the historical data, reveals some extreme statistical discrepancies. Grouping the measurements by detection methodology confirms a systematic 188 ms bias between the NaI(Tl) and HPGe data. The new measurement and statistical analysis performed in the present study do not disagree with the most precise measurement of 15.663 (5) s for the \(^{89m}\)Y half-life previously measured in 1995. Half-life of 15.61 (4) s was evaluated by applying the Rajeval technique on all available HPGe data. Published by the Jagiellonian University 2026 authors- 11 September 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (10)
Open AccessEvaluation of the \(^{89m}\)Y Half-life DataPrecise determination of the \(^{89m}\)Y isomeric half-life is critical for nuclear structure models and activation analysis. However, historical measurements exhibit a long-standing, unresolved scatter. With the present work, we aim to resolve this statistical tension by introducing a high-resolution low-background half-life measurement and evaluating historical dataset. The \(^{89m}\)Y half-life was measured by using the high-energy resolution HPGe detectors of RoSphere. Statistical analysis was performed on the \(909\gamma (t)\) data, obtained in 11 independent measurements. This dataset is highly consistent, displaying a near-ideal reduced chi-squared (\(\chi ^2\)/n.d.f.) of 0.91. Conversely, the statistical analysis, performed on the historical data, reveals some extreme statistical discrepancies. Grouping the measurements by detection methodology confirms a systematic 188 ms bias between the NaI(Tl) and HPGe data. The new measurement and statistical analysis performed in the present study do not disagree with the most precise measurement of 15.663 (5) s for the \(^{89m}\)Y half-life previously measured in 1995. Half-life of 15.61 (4) s was evaluated by applying the Rajeval technique on all available HPGe data. Published by the Jagiellonian University 2026 authors - Open Access
- 10 September 2026
- Published by Elsevier in Physics Letters B
- Vol. 881
The Brink-Axel hypothesis and the γ-ray strength function between excited states of 128Te
- 10 September 2026
- Published by Elsevier in Physics Letters B
- Vol. 881
Open AccessThe Brink-Axel hypothesis and the γ-ray strength function between excited states of 128Te
- 12 August 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 114 (2) , 024321
Low-lying level structure of Pm 150 from the ( d , α ) reaction
A study of the $N=89$ odd-odd nucleus $^{150}\mathrm{Pm}$ with the $^{152}\mathrm{Sm}(d,\ensuremath{\alpha})$ reaction at 18 MeV incident energy is presented. A distorted-wave Born approximation (DWBA) analysis of measured angular distributions has been performed for 48 states observed in this nucleus up to ${E}_{x}\ensuremath{\approx}1.4$ MeV, yielding information on their possible spin and parity values. Albeit not unique due to inherent ambiguities of the DWBA analysis, these assignments are the only ones existing now for this nucleus, for which ${J}^{\ensuremath{\pi}}$ values were previously proposed for only two states. A comparison of the observed states is made with theoretical calculations, performed with the Interacting boson-fermion-Fermion Model-2, and the Shell Model, respectively. These results are a first step to a better understanding of the structure of the odd-odd nuclei around the shape phase transition critical point at $N=90$.- 12 August 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 114 (2) , 024321
Low-lying level structure of Pm 150 from the ( d , α ) reaction
A study of the $N=89$ odd-odd nucleus $^{150}\mathrm{Pm}$ with the $^{152}\mathrm{Sm}(d,\ensuremath{\alpha})$ reaction at 18 MeV incident energy is presented. A distorted-wave Born approximation (DWBA) analysis of measured angular distributions has been performed for 48 states observed in this nucleus up to ${E}_{x}\ensuremath{\approx}1.4$ MeV, yielding information on their possible spin and parity values. Albeit not unique due to inherent ambiguities of the DWBA analysis, these assignments are the only ones existing now for this nucleus, for which ${J}^{\ensuremath{\pi}}$ values were previously proposed for only two states. A comparison of the observed states is made with theoretical calculations, performed with the Interacting boson-fermion-Fermion Model-2, and the Shell Model, respectively. These results are a first step to a better understanding of the structure of the odd-odd nuclei around the shape phase transition critical point at $N=90$.- Open Access
- 28 July 2026
- Published by Elsevier in Physics Letters B
- Vol. 880
Experimental Gamow–Teller strength in the β decay of the rp-process waiting-point nucleus 64Ge and its impact on stellar weak-decay rates
- 28 July 2026
- Published by Elsevier in Physics Letters B
- Vol. 880
Open AccessExperimental Gamow–Teller strength in the β decay of the rp-process waiting-point nucleus 64Ge and its impact on stellar weak-decay rates
- Open Access
- 24 July 2026
- Published by Elsevier in Physics Letters B
- Vol. 880
First determination of the isospin mixing in the 8Be 2+ doublet via 8B beta decay
- 24 July 2026
- Published by Elsevier in Physics Letters B
- Vol. 880
Open AccessFirst determination of the isospin mixing in the 8Be 2+ doublet via 8B beta decay
- Open Access
- 9 April 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 113 (4)
Lifetimes of the 2 1 + and 4 1 + states of the neutron-rich nuclide Pt 200
The lifetimes of the 2 1 + and 4 1 + states of Pt 200 were measured by applying the recoil-distance Doppler-shift method. Excited states were populated in the Pt 198 ( O 18 , O 16 ) Pt 200 two-neutron transfer reaction at the 9-MV tandem accelerator at the IFIN-HH in Măgurele, Romania. The resulting B ( E 2 ) values of the 2 1 + → 0 1 + and 4 1 + → 2 1 + transitions as well as the B 4 / 2 ratio of 2.10(31) indicate an evolution of the nuclear structure toward sphericity when approaching the neutron shell closure at N = 126 . The B ( E 2 ; 2 1 + → 0 1 + ) values of Pt and Hg are compared to values of Te, Xe, and Ba where similar structural effects are exhibited.
- 9 April 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 113 (4)
Open AccessLifetimes of the 2 1 + and 4 1 + states of the neutron-rich nuclide Pt 200
The lifetimes of the 2 1 + and 4 1 + states of Pt 200 were measured by applying the recoil-distance Doppler-shift method. Excited states were populated in the Pt 198 ( O 18 , O 16 ) Pt 200 two-neutron transfer reaction at the 9-MV tandem accelerator at the IFIN-HH in Măgurele, Romania. The resulting B ( E 2 ) values of the 2 1 + → 0 1 + and 4 1 + → 2 1 + transitions as well as the B 4 / 2 ratio of 2.10(31) indicate an evolution of the nuclear structure toward sphericity when approaching the neutron shell closure at N = 126 . The B ( E 2 ; 2 1 + → 0 1 + ) values of Pt and Hg are compared to values of Te, Xe, and Ba where similar structural effects are exhibited.