%0 Journal Article %1 Pasqualato2023 %A Pasqualato, G. %A Ansari, S. %A Heines, J. S. %A Modamio, V. %A Görgen, A. %A Korten, W. %A Ljungvall, J. %A Clément, E. %A Dudouet, J. %A Lemasson, A. %A Rodríguez, T. R. %A Allmond, J. M. %A Arici, T. %A Beckmann, K. S. %A Bruce, A. M. %A Doherty, D. %A Esmaylzadeh, A. %A Gamba, E. R. %A Gerhard, L. %A Gerl, J. %A Georgiev, G. %A Ivanova, D. P. %A Jolie, J. %A Kim, Y.-H. %A Knafla, L. %A Korichi, A. %A Koseoglou, P. %A Labiche, M. %A Lalkovski, S. %A Lauritsen, T. %A Li, H.-J. %A Pedersen, L. G. %A Pietri, S. %A Ralet, D. %A Regis, J. M. %A Rudigier, M. %A Saha, S. %A Sahin, E. %A Siem, S. %A Singh, P. %A Söderström, P.-A. %A Theisen, C. %A Tornyi, T. %A Vandebrouck, M. %A Witt, W. %A Zielińska, M. %A Barrientos, D. %A Bednarczyk, P. %A Benzoni, G. %A Boston, A. J. %A Boston, H. C. %A Bracco, A. %A Cederwall, B. %A Ciemała, M. %A de France, G. %A Domingo-Pardo, C. %A Eberth, J. %A Gadea, A. %A González, V. %A Gottardo, A. %A Harkness-Brennan, L. J. %A Hess, H. %A Judson, D. S. %A Jungclaus, A. %A Lenzi, S. M. %A Leoni, S. %A Menegazzo, R. %A Mengoni, D. %A Michelagnoli, C. %A Napoli, D. R. %A Nyberg, J. %A Podolyák, Zs. %A Pullia, A. %A Recchia, F. %A Reiter, P. %A Rezynkina, K. %A Salsac, M. D. %A Sanchis, E. %A Şenyiğit, M. %A Siciliano, M. %A Simpson, J. %A Sohler, D. %A Stezowski, O. %A Valiente-Dobón, J. J. %A Verney, D. %D 2023 %J The European Physical Journal A %K jolie myown %N 11 %P 276 %R 10.1140/epja/s10050-023-01172-8 %T Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the gamma-gamma-coincidence technique %U https://doi.org/10.1140/epja/s10050-023-01172-8 %V 59 %X The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2+ state and the increase in the transition strength B(E2; 2^+1, 0^+1) going from 98Zr to 100Zr has been the first example of ``quantum phase transition'' in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the gamma gamma -coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in 98-104Zr carried out to extract reduced transition probabilities. The new lifetime values in gamma gamma -coincidence and gamma -single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree--Fock--Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.

@article{Pasqualato2023, abstract = {The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2+ state and the increase in the transition strength B(E2; 2^+1, 0^+1) going from 98Zr to 100Zr has been the first example of ``quantum phase transition'' in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the gamma gamma -coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in 98-104Zr carried out to extract reduced transition probabilities. The new lifetime values in gamma gamma -coincidence and gamma -single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree--Fock--Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.}, added-at = {2024-01-15T10:08:57.000+0100}, author = {Pasqualato, G. and Ansari, S. and Heines, J. S. and Modamio, V. and Görgen, A. and Korten, W. and Ljungvall, J. and Clément, E. and Dudouet, J. and Lemasson, A. and Rodríguez, T. R. and Allmond, J. M. and Arici, T. and Beckmann, K. S. and Bruce, A. M. and Doherty, D. and Esmaylzadeh, A. and Gamba, E. R. and Gerhard, L. and Gerl, J. and Georgiev, G. and Ivanova, D. P. and Jolie, J. and Kim, Y.-H. and Knafla, L. and Korichi, A. and Koseoglou, P. and Labiche, M. and Lalkovski, S. and Lauritsen, T. and Li, H.-J. and Pedersen, L. G. and Pietri, S. and Ralet, D. and Regis, J. M. and Rudigier, M. and Saha, S. and Sahin, E. and Siem, S. and Singh, P. and Söderström, P.-A. and Theisen, C. and Tornyi, T. and Vandebrouck, M. and Witt, W. and Zielińska, M. and Barrientos, D. and Bednarczyk, P. and Benzoni, G. and Boston, A. J. and Boston, H. C. and Bracco, A. and Cederwall, B. and Ciemała, M. and de France, G. and Domingo-Pardo, C. and Eberth, J. and Gadea, A. and González, V. and Gottardo, A. and Harkness-Brennan, L. J. and Hess, H. and Judson, D. S. and Jungclaus, A. and Lenzi, S. M. and Leoni, S. and Menegazzo, R. and Mengoni, D. and Michelagnoli, C. and Napoli, D. R. and Nyberg, J. and Podolyák, Zs. and Pullia, A. and Recchia, F. and Reiter, P. and Rezynkina, K. and Salsac, M. D. and Sanchis, E. and Şenyiğit, M. and Siciliano, M. and Simpson, J. and Sohler, D. and Stezowski, O. and Valiente-Dobón, J. J. and Verney, D.}, biburl = {https://www.bibsonomy.org/bibtex/251b93c543595388c42f30abb9908cdf4/ikpcologne}, day = 21, description = {Shape evolution in even-mass 98-104 Zr isotopes via lifetime measurements using the gamma gamma -coincidence technique | The European Physical Journal A}, doi = {10.1140/epja/s10050-023-01172-8}, interhash = {28ed75c2cd2235fe15e8f43a9c661f47}, intrahash = {51b93c543595388c42f30abb9908cdf4}, issn = {1434-601X}, journal = {The European Physical Journal A}, keywords = {jolie myown}, month = nov, number = 11, pages = 276, timestamp = {2024-01-15T10:12:58.000+0100}, title = {Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the gamma-gamma-coincidence technique}, url = {https://doi.org/10.1140/epja/s10050-023-01172-8}, volume = 59, year = 2023 }