Evidence of octupole-phonons at high spin in 207Pb

Ralet, D.; Clément, E.; Георгиев, Г.; Stuchbery, A.E.; Rejmund, M.; Isacker, P. Van; Lemasson, A.; Ljungvall, J.; Michelagnoli, C.; Navin, A.; Balabanski, D. L.; Atanasova, L.; Blazhev, A.; Bocchi, G.; Carroll, R.; Dudouet, J.; Dupont, E.; Fornal, B.; Franchoo, S.; Fransen, C.; Müller-Gatermann, C.; Goasduff, A.; Gadea, A.; John, P. R.; Kocheva, D.; Konstantinopoulos, T.; Korichi, A.; Kuşoğlu, A.; Lenzi, S. M.; Leoni, S.; Lozeva, R.; Maj, A.; Perez, R.B.; Pietralla, N.; Shand, C.; Stézowski, O.; Wilmsen, D.; Yordanov, Deyan T.; Barrientos, D.; Bednarczyk, P.; Birkenbach, B.; Boston, A. J.; Boston, H. C.; Cederwall, B.; Ciemała, M.; Collado, J.; Crespi, F. C. L.; Cullen, D. M.; Eberth, H; Goupil, J.; Harkness, L.J.; Hess, H.; Jungclaus, A.; Körten, W.; Labiche, M.; Menegazzo, R.; Mengoni, D.; Million, B.; Nyberg, J.; Podolyák, Zs.; Pullia, A.; Arnés, B. Quintana; Recchia, F.; Reiter, P.; Saillant, F.; Salsac, M. D.; Sanchís, E.; Theisen, Ch.; Dobón, J. J. Valiente; Wieland, O.

doi:10.1016/j.physletb.2019.134797

Cited by 7 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the individual terms in the sums in Eq. ( 13) are small, they all act coherently to yield a large off-diagonal matrix element [18]. The coefficients α and β in Eq.…”

mentioning

confidence: 99%

Shell-model study of octupole collectivity near 208Pb

Isacker¹,

Rejmund²

2022

Preprint

Self Cite

View full text Add to dashboard Cite

We show that the collectivity of the particle-hole wave function of low-lying octupole 3 − states in doubly magic nuclei is mainly due to the neutron-proton interaction. Both the enhanced reduced transition probability to the ground state, B(E3; 3 − 1 → 0 + 1 ), and the coupling of the octupole excitation to a nucleon result from the coherent action of all the components of the collective state. The results obtained with a realistic shell-model interaction both for 208 Pb and 209 Pb agree with the geometric collective model of Bohr and Mottelson, where octupole excitations are associated with phonons corresponding to collective shape oscillations of the surface of the nucleus.

show abstract

“…Although the individual terms in the sums in Eq. ( 13) are small, they all act coherently to yield a large off-diagonal matrix element [18]. The coefficients α and β in Eq.…”

mentioning

confidence: 99%

Shell-model study of octupole collectivity near 208Pb

Isacker¹,

Rejmund²

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Fast trajectory reconstruction techniques for the large acceptance magnetic spectrometer VAMOS++

Lemasson

Rejmund

2023

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

Gamma spectroscopy with AGATA in its first phases: New insights in nuclear excitations along the nuclear chart

Bracco

Duchêne

Podolyák

et al. 2021

Progress in Particle and Nuclear Physics

Self Cite

View full text Add to dashboard Cite

The Advanced GAmma Tracking Array (AGATA), the new generation high-resolution γray spectrometer, has seen the realization of the first phases of its construction and exploitation. A number of nuclear structure studies based on experiments utilizing the principle of γ -ray tracking were carried out in this decade. The combination of highest detection efficiency and position sensitivity allowed very selective spectroscopic studies with stable beams and the use of instable ion beams with the lowest intensities. Nuclear-structure studies commenced already at INFN-LNL (Legnaro, Italy) with a first implementation of the array consisting of five AGATA modules. A larger array of AGATA modules was used at GSI (Darmstadt, Germany) for experiments with unstable ion beams at relativistic energies. The spectrometer was then mounted in a beam line at GANIL (Caen, France). This review discusses several of the obtained results, underlying the progress made and future perspectives. The performed experiments give insights into nuclear structure issues which are connected to single particles, collective degrees of freedom, nucleon interactions and symmetries. Most of the investigated nuclei are located outside the stability line and for stable nuclei the investigations concern unexplored configurations. Altogether the obtained results represent advances which could test theory in exclusive way and motivate new theoretical developments.Opportunities for further γ -ray spectroscopy with the foreseen more advanced phase of the AGATA emerge in the discussions of the presented data.

show abstract

Evidence of octupole-phonons at high spin in 207Pb

Cited by 7 publications

References 31 publications

Shell-model study of octupole collectivity near 208Pb

Shell-model study of octupole collectivity near 208Pb

Fast trajectory reconstruction techniques for the large acceptance magnetic spectrometer VAMOS++

Gamma spectroscopy with AGATA in its first phases: New insights in nuclear excitations along the nuclear chart

Contact Info

Product

Resources

About