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Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $γγ$-coincidence technique

Fuente: arXiv

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Main Authors:	Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H., Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J., Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., öderström, P. -A., Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielińska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B, Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., González, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, J., Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobón, J. J., Verney, D.
Format:	Preprint
Published:	2024
Subjects:	Nuclear Experiment
Online Access:	Acceder al recurso
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_version_	1866929554312921088
author	Pasqualato, G. Ansari, S. Heines, J. S. Modamio, V. Görgen, A. Korten, W. Ljungvall, J. Clément, E. Dudouet, J. Lemasson, A. Rodríguez, T. R. Allmond, J. M. Arici, T. Beckmann, K. S. Bruce, A. M. Doherty, D. Esmaylzadeh, A. Gamba, E. R. Gerhard, L. Gerl, J. Georgiev, G. Ivanova, D. P. Jolie, J. Kim, Y. -H. Knafla, L. Korichi, A. Koseoglou, P. Labiche, M. Lalkovski, S. Lauritsen, T. Li, H. -J. Pedersen, L. G. Pietri, S. Ralet, D. Regis, J. M. Rudigier, M. Saha, S. Sahin, E. Siem, S. Singh, P. öderström, P. -A. Theisen, C. Tornyi, T. Vandebrouck, M. Witt, W. Zielińska, M. Barrientos, D. Bednarczyk, P. Benzoni, G. Boston, A. J. Boston, H. C. Bracco, A. Cederwall, B Ciemala, M. de France, G. Domingo-Pardo, C. Eberth, J. Gadea, A. González, V. Gottardo, A. Harkness-Brennan, L. J. Hess, H. Judson, D. S. Jungclaus, A. Lenzi, S. M. Leoni, S. Menegazzo, R. Mengoni, D. Michelagnoli, C. Napoli, D. R. Nyberg, J. Podolyak, Zs. Pullia, A. Recchia, F. Reiter, P. Rezynkina, K. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Simpson, J. Sohler, D. Stezowski, O. Valiente-Dobón, J. J. Verney, D.
author_facet	Pasqualato, G. Ansari, S. Heines, J. S. Modamio, V. Görgen, A. Korten, W. Ljungvall, J. Clément, E. Dudouet, J. Lemasson, A. Rodríguez, T. R. Allmond, J. M. Arici, T. Beckmann, K. S. Bruce, A. M. Doherty, D. Esmaylzadeh, A. Gamba, E. R. Gerhard, L. Gerl, J. Georgiev, G. Ivanova, D. P. Jolie, J. Kim, Y. -H. Knafla, L. Korichi, A. Koseoglou, P. Labiche, M. Lalkovski, S. Lauritsen, T. Li, H. -J. Pedersen, L. G. Pietri, S. Ralet, D. Regis, J. M. Rudigier, M. Saha, S. Sahin, E. Siem, S. Singh, P. öderström, P. -A. Theisen, C. Tornyi, T. Vandebrouck, M. Witt, W. Zielińska, M. Barrientos, D. Bednarczyk, P. Benzoni, G. Boston, A. J. Boston, H. C. Bracco, A. Cederwall, B Ciemala, M. de France, G. Domingo-Pardo, C. Eberth, J. Gadea, A. González, V. Gottardo, A. Harkness-Brennan, L. J. Hess, H. Judson, D. S. Jungclaus, A. Lenzi, S. M. Leoni, S. Menegazzo, R. Mengoni, D. Michelagnoli, C. Napoli, D. R. Nyberg, J. Podolyak, Zs. Pullia, A. Recchia, F. Reiter, P. Rezynkina, K. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Simpson, J. Sohler, D. Stezowski, O. Valiente-Dobón, J. J. Verney, D.
contents	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; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr 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 $γγ$-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 $^{98-104}$Zr carried out to extract reduced transition probabilities. The new lifetime values in $γγ$-coincidence and $γ$-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.
format	Preprint
id	arxiv_https___arxiv_org_abs_2410_17004
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $γγ$-coincidence technique Pasqualato, G. Ansari, S. Heines, J. S. Modamio, V. Görgen, A. Korten, W. Ljungvall, J. Clément, E. Dudouet, J. Lemasson, A. Rodríguez, T. R. Allmond, J. M. Arici, T. Beckmann, K. S. Bruce, A. M. Doherty, D. Esmaylzadeh, A. Gamba, E. R. Gerhard, L. Gerl, J. Georgiev, G. Ivanova, D. P. Jolie, J. Kim, Y. -H. Knafla, L. Korichi, A. Koseoglou, P. Labiche, M. Lalkovski, S. Lauritsen, T. Li, H. -J. Pedersen, L. G. Pietri, S. Ralet, D. Regis, J. M. Rudigier, M. Saha, S. Sahin, E. Siem, S. Singh, P. öderström, P. -A. Theisen, C. Tornyi, T. Vandebrouck, M. Witt, W. Zielińska, M. Barrientos, D. Bednarczyk, P. Benzoni, G. Boston, A. J. Boston, H. C. Bracco, A. Cederwall, B Ciemala, M. de France, G. Domingo-Pardo, C. Eberth, J. Gadea, A. González, V. Gottardo, A. Harkness-Brennan, L. J. Hess, H. Judson, D. S. Jungclaus, A. Lenzi, S. M. Leoni, S. Menegazzo, R. Mengoni, D. Michelagnoli, C. Napoli, D. R. Nyberg, J. Podolyak, Zs. Pullia, A. Recchia, F. Reiter, P. Rezynkina, K. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Simpson, J. Sohler, D. Stezowski, O. Valiente-Dobón, J. J. Verney, D. Nuclear Experiment 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; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr 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 $γγ$-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 $^{98-104}$Zr carried out to extract reduced transition probabilities. The new lifetime values in $γγ$-coincidence and $γ$-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.
title	Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $γγ$-coincidence technique
topic	Nuclear Experiment
url	https://arxiv.org/abs/2410.17004