24 results on '"Scholey, C"'
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2. Transition probability studies in ¹⁷⁵Au
- Author
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Grahn, T., Watkins, H., Joss, D. T., Page, R. D., Carroll, R. J., Dewald, A., Greenlees, P. T., Hackstein, M., Herzberg, R.-D., Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Kröll, Thorsten, Krücken, R., Labiche, M., Leino, M., Lumley, N., Maierbeck, P., Nyman, M., Nieminen, P., O'Donnell, D., Ollier, J., Pakarinen, J., Peura, P., Pissulla, Th., Rahkila, P., Revill, J. P., Rother, W., Ruotsalainen, P., Rigby, S. V., Sarén, J., Sapple, P. J., Scheck, M., Scholey, C., Simpson, J., Sorri, J., Uusitalo, J., Venhart, M., Grahn, T., Watkins, H., Joss, D. T., Page, R. D., Carroll, R. J., Dewald, A., Greenlees, P. T., Hackstein, M., Herzberg, R.-D., Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Kröll, Thorsten, Krücken, R., Labiche, M., Leino, M., Lumley, N., Maierbeck, P., Nyman, M., Nieminen, P., O'Donnell, D., Ollier, J., Pakarinen, J., Peura, P., Pissulla, Th., Rahkila, P., Revill, J. P., Rother, W., Ruotsalainen, P., Rigby, S. V., Sarén, J., Sapple, P. J., Scheck, M., Scholey, C., Simpson, J., Sorri, J., Uusitalo, J., and Venhart, M.
- Abstract
Transition probabilities have been measured between the low-lying yrast states in ¹⁷⁵Au by employing the recoil distance Doppler-shift method combined with the selective recoil-decay tagging technique. Reduced transition probabilities and magnitudes of transition quadrupole moments have been extracted from measured lifetimes allowing dramatic changes in nuclear structure within a low excitation-energy range to probed. The transition quadrupole moment data are discussed in terms of available systematics as a function of atomic number and aligned angular momentum.
- Published
- 2024
3. First observation of high-K isomeric states in 249251Md and 249251Md
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Goigoux, T., Theisen, Ch., Sulignano, B., Airiau, M., Auranen, K., Badran, H., Briselet, R., Calverley, T., Cox, D., Déchery, F., Bisso, F. Defranchi, Drouart, A., Favier, Z., Gall, B., Grahn, T., Greenlees, P. T., Hauschild, K., Herzáň, A., Herzberg, R.-D., Jakobsson, U., Julin, R., Juutinen, S., Konki, J., Leino, M., Lightfoot, A., Lopez-Martens, A., Mistry, A., Nieminen, P., Pakarinen, J., Papadakis, P., Partanen, J., Peura, P., Rahkila, P., Rey-Herme, E., Rubert, J., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Sorri, J., Stolze, S., Uusitalo, J., Vandebrouck, M., Ward, A., Zielińska, M., Jachimowicz, P., Kowal, M., and Skalski, J.
- Published
- 2021
- Full Text
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4. Direct observation of E0 transitions in 188Pb through in-beam spectroscopy
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Papadakis, P., Pakarinen, J., Briscoe, A.D., Cox, D.M., Julin, R., Auranen, K., Grahn, T., Greenlees, P.T., Hadyńska-Klek, K., Herzáň, A., Herzberg, R.-D., Jakobsson, U., Juutinen, S., Konki, J., Leino, M., Mistry, A., O'Donnell, D., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Stoltze, S., Sorri, J., Uusitalo, J., and Wrzosek-Lipska, K.
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- 2024
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5. Properties of the new α -decaying isotope At190
- Author
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Kokkonen, H., primary, Auranen, K., additional, Uusitalo, J., additional, Eeckhaudt, S., additional, Grahn, T., additional, Greenlees, P. T., additional, Jones, P., additional, Julin, R., additional, Juutinen, S., additional, Leino, M., additional, Leppänen, A.-P., additional, Nyman, M., additional, Pakarinen, J., additional, Rahkila, P., additional, Sarén, J., additional, Scholey, C., additional, Sorri, J., additional, and Venhart, M., additional
- Published
- 2023
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6. Lifetime measurement of the yrast 2+state in118Te
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Cederlof, E. Ahlgren, Back, T., Nyberg, J., Qi, C., Atac, A., Badran, H., Braunroth, T., Calverley, T., Cox, D. M., Doncel Monasterio, Maria, Grahn, T., Greenlees, P., Hilton, J., Julin, R., Juutinen, S., Konki, J., Li, H., Matta, S., Modamio, V., Singh, B. S. Nara, Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Scholey, C., Stolze, S., Subramaniam, P., Uusitalo, J., Valiente-Dobon, J. J., Cederlof, E. Ahlgren, Back, T., Nyberg, J., Qi, C., Atac, A., Badran, H., Braunroth, T., Calverley, T., Cox, D. M., Doncel Monasterio, Maria, Grahn, T., Greenlees, P., Hilton, J., Julin, R., Juutinen, S., Konki, J., Li, H., Matta, S., Modamio, V., Singh, B. S. Nara, Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Scholey, C., Stolze, S., Subramaniam, P., Uusitalo, J., and Valiente-Dobon, J. J.
- Abstract
The electromagnetic transition probabilities of the yrast 2+ states in the midshell Te isotopes, two protons above the closed shell at Sn, are of great importance for the understanding of nuclear collectivity in these isotopes and the role played by the neutron-proton interactions and cross-shell excitations. However, the large uncertainty of the experimental data for the midshell nucleus Te-118 and the missing data for Te-116 make it difficult to pin down the general trend of the evolution of transition probabilities as a function of the neutron number. In this work, the lifetime of the yrast 2(+) state in Te-118 was measured, with the aim of reducing the uncertainty of the previous measurement. The result is tau(2+)=7.46(19) ps. In addition, the lifetime of the 4(+) state was measured to be tau(4+)=4.25(23) ps. The experimental transition rates are extracted from the measured lifetimes and compared with systematic large-scale shell-model calculations. The trend of the B(E2;0(+)-> 2(+)) values in the midshell area is in good agreement with the calculations and the calculated B-4/2 ratio provide evidence for Te-118 as a near perfect harmonic vibrator.
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- 2023
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7. Decay spectroscopy of Os171,172 and Ir171,172,174
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Zhang, W., primary, Cederwall, B., additional, Doncel, M., additional, Aktas, Ö., additional, Ertoprak, A., additional, Qi, C., additional, Grahn, T., additional, Nara Singh, B. S., additional, Cullen, D. M., additional, Hodge, D., additional, Giles, M., additional, Stolze, S., additional, Auranen, K., additional, Badran, H., additional, Braunroth, T., additional, Calverley, T., additional, Cox, D. M., additional, Fang, Y. D., additional, Greenlees, P. T., additional, Hilton, J., additional, Ideguchi, E., additional, Julin, R., additional, Juutinen, S., additional, Kumar Raju, M., additional, Leino, M., additional, Li, H., additional, Liu, H., additional, Matta, S., additional, Subramaniam, P., additional, Modamio, V., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Petrache, C. M., additional, Rahkila, P., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Sorri, J., additional, Taylor, M. J., additional, Uusitalo, J., additional, and Valiente-Dobón, J. J., additional
- Published
- 2023
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8. New collective structures in Au179 and their implications for the triaxial deformation of the Pt178 core
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Balogh, M., primary, Jajčišinová, E., additional, Venhart, M., additional, Herzáň, A., additional, Wood, J. L., additional, Joss, D. T., additional, Ali, F. A., additional, Auranen, K., additional, Bánovská, S., additional, Bírová, M., additional, Carroll, R. J., additional, Cox, D. M., additional, Cubiss, J. G., additional, Davis, T., additional, Drummond, M. C., additional, Greenlees, P. T., additional, Grahn, T., additional, Gredley, A., additional, Henderson, J., additional, Jakobsson, U., additional, Julin, R., additional, Juutinen, S., additional, Kantay, G., additional, Konki, J., additional, Konopka, P., additional, Leino, M., additional, Matoušek, V., additional, Mistry, A. K., additional, McPeake, C. G., additional, O'Donnell, D., additional, Page, R. D., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Peura, P., additional, Rahkila, P., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Saygı, B., additional, Sedlák, M., additional, Seweryniak, D., additional, Scholey, C., additional, Sorri, J., additional, Špaček, A., additional, Stolze, S., additional, Taylor, M., additional, Thornthwaite, A., additional, Uusitalo, J., additional, Veselský, M., additional, Vielhauer, S., additional, and Wearing, F. P., additional
- Published
- 2022
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9. Decay spectroscopy of 171,172Os and 171,172,174Ir
- Author
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Zhang, W., Cederwall, B., Doncel, M., Aktas, Ö., Ertoprak, A., Qi, C., Grahn, T., Nara Singh, B. S., Cullen, D. M., Hodge, D., Giles, M., Stolze, S., Auranen, K., Badran, H., Braunroth, T., Calverley, T., Cox, D. M., Fang, Y. D., Greenlees, P. T., Hilton, J., Ideguchi, E., Julin, R., Juutinen, S., Kumar Raju, M., Leino, M., Li, H., Liu, H., Matta, S., Subramaniam, P., Modamio, V., Pakarinen, J., Papadakis, P., Partanen, J., Petrache, C. M., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Sorri, J., Taylor, M. J., Uusitalo, J., and Valiente-Dobón, J. J.
- Subjects
spektroskopia ,ydinfysiikka - Abstract
We report on a study of the α-decay fine structure and the associated Eα−Eγ correlations in the decays of 171,172Os and 171,172,174Ir. In total, 13 new α-decay energy lines have been resolved, and three new γ-ray transitions have been observed following the new decay branches to 168Re and 167W. The weak α-decay branch from the bandhead of the νi13/2 band in 171Os observed in this work highlights an unusual competition between α, β, and electromagnetic decays from this isomeric state. The nucleus 171Os is therefore one of few nuclei observed to exhibit three different decay modes from the same excited state. The nuclei of interest were produced in 92Mo(83Kr,xpyn) fusion-evaporation reactions at the Accelerator Laboratory of the University of Jyväskylä, Finland. The fusion products were selected using the gas-filled ion separator RITU and their decays were characterized using an array of detectors for charged particles and electromagnetic radiation known as GREAT. Prompt γ-ray transitions were detected and correlated with the decays using the JUROGAM II germanium detector array surrounding the target position. Results obtained from total Routhian surface (TRS) calculations suggest that α-decay fine structure and the associated hindrance factors may be a sensitive probe of even relatively small shape changes between the final states in the daughter nucleus. peerReviewed
- Published
- 2023
10. Experimental observation of the 1 Scissors Mode in No
- Author
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Bello Garrote, F.L., Lopez-Martens, A., Larsen, A.C., Deloncle, I., Péru, S., Zeiser, F., Greenlees, P.T., Kheswa, B.V., Auranen, K., Bleuel, D.L., Cox, D.M., Crespo Campo, L., Giacoppo, F., Görgen, A., Grahn, T., Guttormsen, M., Hagen, T.W., Harkness-Brennan, L., Hauschild, K., Henning, G., Herzberg, R.D., Julin, R., Juutinen, S., Laplace, T.A., Leino, M., Midtbø, J.E., Modamio, V., Pakarinen, J., Papadakis, P., Partanen, J., Renstrøm, T., Rezynkina, K., Sandzelius, M., Sarén, J., Scholey, C., Siem, S., Sorri, J., Stolze, S., and Uusitalo, J.
- Abstract
We present the first experimental evidence of the scissors mode in the superheavy nucleus $^{254}$No produced in the $^{208}$Pb($^{48}$Ca, 2nγ))$^{254}$No reaction. The spectrum of γ rays emitted by the excited $^{254}$No nuclei shows an enhanced γ-ray yield for transition energies of ≈2.5 MeV. By measuring the linear polarization properties of the emitted γ rays, we confirm that the transitions in the enhancement region are predominantly of magnetic-dipole character, characteristic for the scissors mode. To further characterize the enhanced γ-ray yield, simulations of the electromagnetic decay of $^{254}$No were performed. The observed enhancement is reproduced by including an M1 component in the γ strength function with total strength B(M1↑)=11.8(19)μN2. This is in good agreement with the integrated M1 strength from sum-rule estimates and new calculations within the quasi-particle random-phase approximation presented here. Our results provide a stringent test of phenomenological formulae for the scissors mode currently used in stellar nucleosynthesis calculations. We find that those formulae are not satisfactory, and we recommend using sum-rule estimates assuming a rigid-body moment of inertia instead for describing the scissors mode in superheavy nuclei.
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- 2022
11. Experimental observation of the M1 scissors mode in 254No
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Bello Garrote, F.L., primary, Lopez-Martens, A., additional, Larsen, A.C., additional, Deloncle, I., additional, Péru, S., additional, Zeiser, F., additional, Greenlees, P.T., additional, Kheswa, B.V., additional, Auranen, K., additional, Bleuel, D.L., additional, Cox, D.M., additional, Crespo Campo, L., additional, Giacoppo, F., additional, Görgen, A., additional, Grahn, T., additional, Guttormsen, M., additional, Hagen, T.W., additional, Harkness-Brennan, L., additional, Hauschild, K., additional, Henning, G., additional, Herzberg, R.-D., additional, Julin, R., additional, Juutinen, S., additional, Laplace, T.A., additional, Leino, M., additional, Midtbø, J.E., additional, Modamio, V., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Renstrøm, T., additional, Rezynkina, K., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Siem, S., additional, Sorri, J., additional, Stolze, S., additional, and Uusitalo, J., additional
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- 2022
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12. Single-particle states and parity doublets in odd-Z Ac-221 and Pa-225 from alpha-decay spectroscopy
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Parr, E, Smith, JF, Greenlees, PT, Butler, PA, Auranen, K, Chapman, R, Cox, DM, Cullen, DM, Gaffney, LP, Grahn, T, Gregor, ET, Grocutt, L, Herzan, A, Herzberg, R-D, Hodge, D, Jakobsson, U, Julin, R, Juutinen, S, Keatings, JM, Konki, J, Leino, M, McKee, PP, McPeake, C, Mengoni, D, Mistry, AK, Singh, BS Nara, O'Neill, GG, Pakarinen, J, Papadakis, P, Partanen, J, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Saren, J, Scheck, M, Scholey, C, Siciliano, M, Smolen, M, Sorri, J, Spagnoletti, P, Spohr, KM, Stolze, S, Taylor, MJ, and Uusitalo, J
- Published
- 2022
13. Experimental evidence for transverse wobbling bands in Nd136
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Lv, B. F., primary, Petrache, C. M., additional, Budaca, R., additional, Astier, A., additional, Zheng, K. K., additional, Greenlees, P., additional, Badran, H., additional, Calverley, T., additional, Cox, D. M., additional, Grahn, T., additional, Hilton, J., additional, Julin, R., additional, Juutinen, S., additional, Konki, J., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Rahkila, P., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Saren, J., additional, Scholey, C., additional, Sorri, J., additional, Stolze, S., additional, Uusitalo, J., additional, Cederwall, B., additional, Ertoprak, A., additional, Liu, H., additional, Guo, S., additional, Wang, J. G., additional, Ong, H. J., additional, Zhou, X. H., additional, Sun, Z. Y., additional, Kuti, I., additional, Timár, J., additional, Tucholski, A., additional, Srebrny, J., additional, and Andreoiu, C., additional
- Published
- 2022
- Full Text
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14. Single-particle states and parity doublets in odd- Z Ac221 and Pa225 from α -decay spectroscopy
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Parr, E., primary, Smith, J. F., additional, Greenlees, P. T., additional, Butler, P. A., additional, Auranen, K., additional, Chapman, R., additional, Cox, D. M., additional, Cullen, D. M., additional, Gaffney, L. P., additional, Grahn, T., additional, Gregor, E. T., additional, Grocutt, L., additional, Herzáň, A., additional, Herzberg, R.-D., additional, Hodge, D., additional, Jakobsson, U., additional, Julin, R., additional, Juutinen, S., additional, Keatings, J. M., additional, Konki, J., additional, Leino, M., additional, McKee, P. P., additional, McPeake, C., additional, Mengoni, D., additional, Mistry, A. K., additional, Singh, B. S. Nara, additional, O'Neill, G. G., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Peura, P., additional, Rahkila, P., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scheck, M., additional, Scholey, C., additional, Siciliano, M., additional, Smolen, M., additional, Sorri, J., additional, Spagnoletti, P., additional, Spohr, K. M., additional, Stolze, S., additional, Taylor, M. J., additional, and Uusitalo, J., additional
- Published
- 2022
- Full Text
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15. Evidence against the wobbling nature of low-spin bands in Pr
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Lv, B.F., Petrache, C.M., Lawrie, E.A., Guo, S., Astier, A., Zheng, K.K., Ong, H.J., Wang, J.G., Zhou, X.H., Sun, Z.Y., Greenlees, P.T., Badran, H., Calverley, T., Cox, D.M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Sorri, J., Stolze, S., Uusitalo, J., Cederwall, B., Ertoprak, A., Liu, H., Kuti, I., Timár, J., Tucholski, A., Srebrny, J., and Andreoiu, C.
- Abstract
The electromagnetic character of the ΔI=1 transitions connecting the 1- to 0-phonon and the 2- to 1-phonon wobbling bands should be dominated by an E2 component, due to the collective motion of the entire nuclear charge. In the present work it is shown, based on combined angular correlation and linear polarization measurements, that the mixing ratios of all analyzed connecting transitions between low-lying bands in $^{135}$Pr interpreted as 0-, 1-, and 2-phonon wobbling bands, have absolute values smaller than one. This indicates predominant M1 magnetic character, which is incompatible with the proposed wobbling nature. All experimental observables are instead in good agreement with quasiparticle-plus-triaxial-rotor model calculations, which describe the bands as resulting from a rapid re-alignment of the total angular momentum from the short to the intermediate nuclear axis.
- Published
- 2022
16. Single-particle states and parity doublets in odd- Z Ac 221 and Pa 225 from α -decay spectroscopy
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Parr, E., Smith, J. F., Greenlees, P. T., Butler, P. A., Auranen, K., Chapman, R., Cox, D. M., Cullen, D. M., Gaffney, L. P., Grahn, T., Gregor, E. T., Grocutt, L., Herzan, A., Herzberg, R. -D., Hodge, D., Jakobsson, U., Julin, R., Juutinen, S., Keatings, J. M., Konki, J., Leino, M., Mckee, P. P., Mcpeake, C., Mengoni, D., Mistry, A. K., Singh, B. S. N., O'Neill, G. G., Pakarinen, J., Papadakis, P., Partanen, J., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Scheck, M., Scholey, C., Siciliano, M., Smolen, M., Sorri, J., Spagnoletti, P., Spohr, K. M., Stolze, S., Taylor, M. J., and Uusitalo, J.
- Published
- 2022
17. Single-particle states and parity doublets in odd-Z 221Ac and 225Pa from α-decay spectroscopy
- Author
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Parr, E., Smith, J. F., Greenlees, P. T., Butler, P. A., Auranen, K., Chapman, R., Cox, D. M., Cullen, D. M., Gaffney, L. P., Grahn, T., Gregor, E. T., Grocutt, L., Herzáň, A., Herzberg, R.-D., Hodge, D., Jakobsson, U., Julin, R., Juutinen, S., Keatings, J. M., Konki, J., Leino, M., McKee, P. P., McPeake, C., Mengoni, D., Mistry, A. K., Nara Singh, B. S., O'Neill, G. G., Pakarinen, J., Papadakis, P., Partanen, J., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scheck, M., Scholey, C., Siciliano, M., Smolen, M., Sorri, J., Spagnoletti, P., Spohr, K. M., Stolze, S., Taylor, M. J., and Uusitalo, J.
- Subjects
ydinfysiikka - Abstract
Low-lying states in the odd-Z isotopes 22189Ac132 and 22591Pa134 have been studied using α-particle and αγ-coincidence spectroscopy in the 225Pa→221Ac→217Fr decay chain. Ground-state spin and parity assignments of Iπ = 5/2− are proposed for both 221Ac and 225Pa, with the odd proton occupying the Ω = 5/2 orbital of the quadrupole-octupole deformed shell model in both nuclei. In 221Ac, excited states in the bands based on the Ω = 5/2 and Ω = 3/2 orbitals have been identified, including proposed parity-doublet states. The results suggest that reflection-asymmetric deformation of the ground state persists in the odd-A members of the isotope chains down to N = 132 for Ac and N = 134 for Pa, before reaching the transitional region at N = 130. peerReviewed
- Published
- 2022
18. New collective structures in 179Au and their implications for the triaxial deformation of the 178Pt core
- Author
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Balogh, M., Jajčišinová, E., Venhart, M., Herzáň, A., Wood, J. L., Joss, D. T., Ali, F. A., Auranen, K., Bánovská, S., Bírová, M., Carroll, R. J., Cox D., M., Cubiss J., G., Davis, T., Drummond M., C., Greenlees, P. T., Grahn, T., Gredley, A., Henderson, J., Jakobsson, U., Julin, R., Juutinen, S., Kantay, G., Konki, J., Konopka, P., Leino, M., Matoušek, V., Mistry A., K., McPeake, C. G., O'Donnell, D., Page R., D., Pakarinen, J., Papadakis, P., Partanen, J., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Saygı, B., Sedlák, M., Seweryniak, D., Scholey, C., Sorri, J., Špaček, A., Stolze, S., Taylor, M., Thornthwaite, A., Uusitalo, J., Veselský, M., Vielhauer, S., and Wearing, F. P.
- Subjects
platina ,isotoopit ,ydinfysiikka ,kulta - Abstract
The extremely neutron-deficient isotope 179Au has been studied by a combination of in-beam γ-ray and isomeric-decay spectroscopy. For in-beam spectroscopy, the recoil-isomer tagging technique was employed, using the known 3/2−, T1/2=328 ns isomer. A new rotational band, associated with the unfavored signature band of the 1h9/2⊕2f7/2 proton-intruder configuration, was revealed. A previously unknown, high-spin isomeric state with an excitation energy of 1743(17) keV and T1/2=2.16(8)µs was discovered. Five decay paths were identified, some of them feeding previously unknown non-yrast excited states, associated with the 1i13/2 proton-intruder configuration. Calculations based on the particle-plus-triaxial-rotor model were performed to interpret the data. On the basis of these calculations, the new 1h9/2⊕2f7/2 rotational band is interpreted as due to triaxial deformation of the underlying configuration with β2≈0.26 and γ≈27∘. Observed non-yrast states of the positive-parity 1i13/2 intruder configuration are interpreted as due to triaxial deformation with β2≈0.26 and γ≈20∘. peerReviewed
- Published
- 2022
19. Lifetime measurements of excited states in ¹⁶³W and the implications for the anomalous B(E2) ratios in transitional nuclei
- Author
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Lewis, M.C., Joss, D.T., Sayğı, B., Page, R.D., Cullen, D.M., Barber, L., Giles, M.M., Simpson, J., Al-Aqeel, M.A.M., Badran, H., Braunroth, T., Briscoe, A.D., Calverley, T., Dewald, A., Doncel, M., Grahn, T., Greenlees, P.T., Henrich, C., Herzáň, A., Herzberg, R.D., Higgins, E., Hilton, J., Ilieva, S., Julin, R., Juutinen, S., Keatings, J., Kröll, T., Labiche, M., Mashtakov, K., Nara Singh, B.S., Parr, E., Partanen, J., Paul, E.S., Rahkila, P., Sandzelius, M., Sarén, J., Scholey, C., Siciliano, M., Spagnoletti, P., Stolze, S., Szwec, S.V., Taylor, M.J., and Uusitalo, J.
- Subjects
Nuclear Experiment - Abstract
This letter reports lifetime measurements of excited states in the odd-N nucleus $^{163}$W using the recoil-distance Doppler shift method to probe the core polarising effect of the i13/2 neutron orbital on the underlying soft triaxial even-even core. The ratio B(E2:21/2+→17/2+)/B(E2:17/2+→13/2+) is consistent with the predictions of the collective rotational model. The deduced B(E2) values provide insights into the validity of collective model predictions for heavy transitional nuclei and a geometric origin for the anomalous B(E2) ratios observed in nearby even-even nuclei is proposed.
- Published
- 2022
20. Experimental evidence for transverse wobbling bands in 136Nd
- Author
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Lv, B. F. (B. F.), Petrache, C. M. (C. M.), Budaca, R. (R.), Astier, A. (A.), Zheng, K. K. (K. K.), Greenlees, P. (P.), Badran, H. (H.), Calverley, T. (T.), Cox, D. M. (D. M.), Grahn, T. (T.), Hilton, J. (J.), Julin, R. (R.), Juutinen, S. (S.), Konki, J. (J.), Pakarinen, J. (J.), Papadakis, P. (P.), Partanen, J. (J.), Rahkila, P. (P.), Ruotsalainen, P. (P.), Sandzelius, M. (M.), Saren, J. (J.), Scholey, C. (C.), Sorri, J. (J.), Stolze, S. (S.), Uusitalo, J. (J.), Cederwall, B. (B.), Ertoprak, A. (A.), Liu, H. (H.), Guo, S. (S.), Wang, J. G. (J. G.), Ong, H. J. (H. J.), Zhou, X. H. (X. H.), Sun, Z. Y. (Z. Y.), Kuti, I. (I.), Timár, J. (J.), Tucholski, A. (A.), Srebrny, J. (J.), and Andreoiu, C. (C.)
- Subjects
ydinfysiikka ,nuclear structure and decays - Abstract
The nature of two high-spin bands in 136Nd built on the two-quasiparticle configuration πh211/2, predicted by the triaxial projected shell model as good candidates of transverse wobbling bands, are investigated experimentally. The mixing ratio of one ΔI=1 transition connecting the one-phonon and the zero-phonon wobbling bands is established from a high-statistics JuroGam II γ-ray spectroscopy experiment by using the combined angular correlation and linear polarization method. The resulting wobbling excitation energy and ratios of reduced electromagnetic transition probabilities are in good agreement with results of a new particle-rotor model which rigidly couples the total angular momentum of two quasiparticles to a triaxial core in an orthogonal geometry, confirming thus the transverse wobbling nature of the bands. peerReviewed
- Published
- 2022
21. Evidence against the wobbling nature of low-spin bands in 135Pr
- Author
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Lv, B.F., Petrache, C.M., Lawrie, E.A., Guo, S., Astier, A., Zheng, K.K., Ong, H.J., Wang, J.G., Zhou, X.H., Sun, Z.Y., Greenlees, P.T., Badran, H., Calverley, T., Cox, D.M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Sorri, J., Stolze, S., Uusitalo, J., Cederwall, B., Ertoprak, A., Liu, H., Kuti, I., Timár, J., Tucholski, A., Srebrny, J., and Andreoiu, C.
- Published
- 2022
- Full Text
- View/download PDF
22. First observation of high-K isomeric states in Md-249 and Md-251
- Author
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Goigoux, T, Theisen, Ch, Sulignano, B, Airiau, M, Auranen, K, Badran, H, Briselet, R, Calverley, T, Cox, D, Dechery, F, Bisso, F Defranchi, Drouart, A, Favier, Z, Gall, B, Grahn, T, Greenlees, PT, Hauschild, K, Herzan, A, Herzberg, R-D, Jakobsson, U, Julin, R, Juutinen, S, Konki, J, Leino, M, Lightfoot, A, Lopez-Martens, A, Mistry, A, Nieminen, P, Pakarinen, J, Papadakis, P, Partanen, J, Peura, P, Rahkila, P, Rey-Herme, E, Rubert, J, Ruotsalainen, P, Sandzelius, M, Saren, J, Scholey, C, Sorri, J, Stolze, S, Uusitalo, J, Vandebrouck, M, Ward, A, Zielinska, M, Jachimowicz, P, Kowal, M, and Skalski, J
- Published
- 2021
23. Identification of excited states in Te5552107
- Author
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Zhang, W., primary, Cederwall, B., additional, Qi, C., additional, Ertoprak, A., additional, Aktas, Ö., additional, Liu, X., additional, Andgren, K., additional, Auranen, K., additional, Bäck, T., additional, Barber, L., additional, Beeton, G., additional, Cullen, D. M., additional, Darby, I. G., additional, Dimmock, M. R., additional, Eeckhaudt, S., additional, Ganioğlu, E., additional, Górska, M., additional, Grahn, T., additional, Greenlees, P. T., additional, Hadinia, B., additional, Ideguchi, E., additional, Illana, A., additional, Jones, P. M., additional, Joss, D. T., additional, Julin, R., additional, Juutinen, S., additional, Keatings, J. M., additional, Khaplanov, A., additional, Kulali, F., additional, Leino, M., additional, Luoma, M., additional, Lv, B., additional, Nara Singh, B. S., additional, Nelson, L., additional, Niikura, M., additional, Nyman, M., additional, Ojala, J., additional, Page, R. D., additional, Pakarinen, J., additional, Paul, E. S., additional, Petrache, C., additional, Petri, M., additional, Rahkila, P., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Smith, J. F., additional, Sorri, J., additional, Tann, H., additional, Zimba, G., additional, Uusitalo, J., additional, Wadsworth, R., additional, and Wyss, R., additional
- Published
- 2021
- Full Text
- View/download PDF
24. First observation of high-K isomeric states in $$^{249}$$Md and $$^{251}$$Md
- Author
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Goigoux, T., primary, Theisen, Ch., additional, Sulignano, B., additional, Airiau, M., additional, Auranen, K., additional, Badran, H., additional, Briselet, R., additional, Calverley, T., additional, Cox, D., additional, Déchery, F., additional, Bisso, F. Defranchi, additional, Drouart, A., additional, Favier, Z., additional, Gall, B., additional, Grahn, T., additional, Greenlees, P. T., additional, Hauschild, K., additional, Herzáň, A., additional, Herzberg, R.-D., additional, Jakobsson, U., additional, Julin, R., additional, Juutinen, S., additional, Konki, J., additional, Leino, M., additional, Lightfoot, A., additional, Lopez-Martens, A., additional, Mistry, A., additional, Nieminen, P., additional, Pakarinen, J., additional, Papadakis, P., additional, Partanen, J., additional, Peura, P., additional, Rahkila, P., additional, Rey-Herme, E., additional, Rubert, J., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Sorri, J., additional, Stolze, S., additional, Uusitalo, J., additional, Vandebrouck, M., additional, Ward, A., additional, Zielińska, M., additional, Jachimowicz, P., additional, Kowal, M., additional, and Skalski, J., additional
- Published
- 2021
- Full Text
- View/download PDF
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