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Your search keyword '"BALABANSKI, D. L."' showing total 42 results
Start Over Author "BALABANSKI, D. L." Journal physical review letters
42 results on '"BALABANSKI, D. L."'

1. Boulay et al. Reply

Author

Boulay, F., primary, Simpson, G. S., additional, Ichikawa, Y., additional, Kisyov, S., additional, Bucurescu, D., additional, Takamine, A., additional, Ahn, D. S., additional, Asahi, K., additional, Baba, H., additional, Balabanski, D. L., additional, Egami, T., additional, Fujita, T., additional, Fukuda, N., additional, Funayama, C., additional, Furukawa, T., additional, Georgiev, G., additional, Gladkov, A., additional, Hass, M., additional, Imamura, K., additional, Inabe, N., additional, Ishibashi, Y., additional, Kawaguchi, T., additional, Kawamura, T., additional, Kim, W., additional, Kobayashi, Y., additional, Kojima, S., additional, Kusoglu, A., additional, Lozeva, R., additional, Momiyama, S., additional, Mukul, I., additional, Niikura, M., additional, Nishibata, H., additional, Nishizaka, T., additional, Odahara, A., additional, Ohtomo, Y., additional, Ralet, D., additional, Sato, T., additional, Shimizu, Y., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Tao, L. C., additional, Togano, Y., additional, Tominaga, D., additional, Ueno, H., additional, Yamazaki, H., additional, Yang, X. F., additional, and Daugas, J. M., additional

Published
2021
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2. g Factor of the Zr99 ( 7/2+ ) Isomer: Monopole Evolution in the Shape-Coexisting Region

Author

Boulay, F., primary, Simpson, G. S., additional, Ichikawa, Y., additional, Kisyov, S., additional, Bucurescu, D., additional, Takamine, A., additional, Ahn, D. S., additional, Asahi, K., additional, Baba, H., additional, Balabanski, D. L., additional, Egami, T., additional, Fujita, T., additional, Fukuda, N., additional, Funayama, C., additional, Furukawa, T., additional, Georgiev, G., additional, Gladkov, A., additional, Hass, M., additional, Imamura, K., additional, Inabe, N., additional, Ishibashi, Y., additional, Kawaguchi, T., additional, Kawamura, T., additional, Kim, W., additional, Kobayashi, Y., additional, Kojima, S., additional, Kusoglu, A., additional, Lozeva, R., additional, Momiyama, S., additional, Mukul, I., additional, Niikura, M., additional, Nishibata, H., additional, Nishizaka, T., additional, Odahara, A., additional, Ohtomo, Y., additional, Ralet, D., additional, Sato, T., additional, Shimizu, Y., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Tao, L. C., additional, Togano, Y., additional, Tominaga, D., additional, Ueno, H., additional, Yamazaki, H., additional, Yang, X. F., additional, and Daugas, J. M., additional

Published
2020
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3. Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N=82 Shell Closure

Author

Gorges, C., primary, Rodríguez, L. V., additional, Balabanski, D. L., additional, Bissell, M. L., additional, Blaum, K., additional, Cheal, B., additional, Garcia Ruiz, R. F., additional, Georgiev, G., additional, Gins, W., additional, Heylen, H., additional, Kanellakopoulos, A., additional, Kaufmann, S., additional, Kowalska, M., additional, Lagaki, V., additional, Lechner, S., additional, Maaß, B., additional, Malbrunot-Ettenauer, S., additional, Nazarewicz, W., additional, Neugart, R., additional, Neyens, G., additional, Nörtershäuser, W., additional, Reinhard, P.-G., additional, Sailer, S., additional, Sánchez, R., additional, Schmidt, S., additional, Wehner, L., additional, Wraith, C., additional, Xie, L., additional, Xu, Z. Y., additional, Yang, X. F., additional, and Yordanov, D. T., additional

Published
2019
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4. From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of Cd100−130

Author

Hammen, M., primary, Nörtershäuser, W., additional, Balabanski, D. L., additional, Bissell, M. L., additional, Blaum, K., additional, Budinčević, I., additional, Cheal, B., additional, Flanagan, K. T., additional, Frömmgen, N., additional, Georgiev, G., additional, Geppert, Ch., additional, Kowalska, M., additional, Kreim, K., additional, Krieger, A., additional, Nazarewicz, W., additional, Neugart, R., additional, Neyens, G., additional, Papuga, J., additional, Reinhard, P.-G., additional, Rajabali, M. M., additional, Schmidt, S., additional, and Yordanov, D. T., additional

Published
2018
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5. Chiral Doublet Structures in Odd-Odd N = 75 Isotones: Chiral Vibrations

Author

Starosta, K., Koike, T., Chiara, C. J., Fossan, D. B., LaFosse, D. R., Hecht, A. A., Beausang, C. W., Caprio, M. A., Cooper, J. R., Krücken, R., Novak, J. R., Zamfir, N. V., Zyromski, K. E., Hartley, D. J., Balabanski, D. L., Zhang, Jing-ye, Frauendorf, S., and Dimitrov, V. I.

Published
2001

6. Simple Nuclear Structure inCd111–129from Atomic Isomer Shifts

Author

Yordanov, D. T., primary, Balabanski, D. L., additional, Bissell, M. L., additional, Blaum, K., additional, Budinčević, I., additional, Cheal, B., additional, Flanagan, K., additional, Frömmgen, N., additional, Georgiev, G., additional, Geppert, Ch., additional, Hammen, M., additional, Kowalska, M., additional, Kreim, K., additional, Krieger, A., additional, Meng, J., additional, Neugart, R., additional, Neyens, G., additional, Nörtershäuser, W., additional, Rajabali, M. M., additional, Papuga, J., additional, Schmidt, S., additional, and Zhao, P. W., additional

Published
2016
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7. Publisher’s Note:Rb379760: The Cornerstone of the Region of Deformation aroundA∼100[Phys. Rev. Lett.115, 172501 (2015)]

Author

Sotty, C., primary, Zielińska, M., additional, Georgiev, G., additional, Balabanski, D. L., additional, Stuchbery, A. E., additional, Blazhev, A., additional, Bree, N., additional, Chevrier, R., additional, Das Gupta, S., additional, Daugas, J. M., additional, Davinson, T., additional, De Witte, H., additional, Diriken, J., additional, Gaffney, L. P., additional, Geibel, K., additional, Hadyńska-Klek, K., additional, Kondev, F. G., additional, Konki, J., additional, Kröll, T., additional, Morel, P., additional, Napiorkowski, P., additional, Pakarinen, J., additional, Reiter, P., additional, Scheck, M., additional, Seidlitz, M., additional, Siebeck, B., additional, Simpson, G., additional, Törnqvist, H., additional, Warr, N., additional, and Wenander, F., additional

Published
2015
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8. Rb973760: The Cornerstone of the Region of Deformation aroundA∼100

Author

Sotty, C., primary, Zielińska, M., additional, Georgiev, G., additional, Balabanski, D. L., additional, Stuchbery, A. E., additional, Blazhev, A., additional, Bree, N., additional, Chevrier, R., additional, Das Gupta, S., additional, Daugas, J. M., additional, Davinson, T., additional, De Witte, H., additional, Diriken, J., additional, Gaffney, L. P., additional, Geibel, K., additional, Hadyńska-Klȩk, K., additional, Kondev, F. G., additional, Konki, J., additional, Kröll, T., additional, Morel, P., additional, Napiorkowski, P., additional, Pakarinen, J., additional, Reiter, P., additional, Scheck, M., additional, Seidlitz, M., additional, Siebeck, B., additional, Simpson, G., additional, Törnqvist, H., additional, Warr, N., additional, and Wenander, F., additional

Published
2015
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9. Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of thegFactor of the21+State inMg24

Author

Kusoglu, A., primary, Stuchbery, A. E., additional, Georgiev, G., additional, Brown, B. A., additional, Goasduff, A., additional, Atanasova, L., additional, Balabanski, D. L., additional, Bostan, M., additional, Danchev, M., additional, Detistov, P., additional, Gladnishki, K. A., additional, Ljungvall, J., additional, Matea, I., additional, Radeck, D., additional, Sotty, C., additional, Stefan, I., additional, Verney, D., additional, and Yordanov, D. T., additional

Published
2015
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10. Spins, Electromagnetic Moments, and Isomers ofCd107−129

Author

Yordanov, D. T., primary, Balabanski, D. L., additional, Bieroń, J., additional, Bissell, M. L., additional, Blaum, K., additional, Budinčević, I., additional, Fritzsche, S., additional, Frömmgen, N., additional, Georgiev, G., additional, Geppert, Ch., additional, Hammen, M., additional, Kowalska, M., additional, Kreim, K., additional, Krieger, A., additional, Neugart, R., additional, Nörtershäuser, W., additional, Papuga, J., additional, and Schmidt, S., additional

Published
2013
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11. Is the7/21−Isomer State ofS43Spherical?

Author

Chevrier, R., primary, Daugas, J. M., additional, Gaudefroy, L., additional, Ichikawa, Y., additional, Ueno, H., additional, Hass, M., additional, Haas, H., additional, Cottenier, S., additional, Aoi, N., additional, Asahi, K., additional, Balabanski, D. L., additional, Fukuda, N., additional, Furukawa, T., additional, Georgiev, G., additional, Hayashi, H., additional, Iijima, H., additional, Inabe, N., additional, Inoue, T., additional, Ishihara, M., additional, Ishii, Y., additional, Kameda, D., additional, Kubo, T., additional, Nanao, T., additional, Neyens, G., additional, Ohnishi, T., additional, Rajabali, M. M., additional, Suzuki, K., additional, Takeda, H., additional, Tsuchiya, M., additional, Vermeulen, N., additional, Watanabe, H., additional, and Yoshimi, A., additional

Published
2012
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12. Shell Erosion and Shape Coexistence inS271643

Author

Gaudefroy, L., primary, Daugas, J. M., additional, Hass, M., additional, Grévy, S., additional, Stodel, Ch., additional, Thomas, J. C., additional, Perrot, L., additional, Girod, M., additional, Rossé, B., additional, Angélique, J. C., additional, Balabanski, D. L., additional, Fiori, E., additional, Force, C., additional, Georgiev, G., additional, Kameda, D., additional, Kumar, V., additional, Lozeva, R. L., additional, Matea, I., additional, Méot, V., additional, Morel, P., additional, Singh, B. S. Nara, additional, Nowacki, F., additional, and Simpson, G., additional

Published
2009
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14. Interplay between Single-Particle and Collective Effects in the Odd-ACu Isotopes beyondN=40

Author

Stefanescu, I., primary, Georgiev, G., additional, Balabanski, D. L., additional, Blasi, N., additional, Blazhev, A., additional, Bree, N., additional, Cederkäll, J., additional, Cocolios, T. E., additional, Davinson, T., additional, Diriken, J., additional, Eberth, J., additional, Ekström, A., additional, Fedorov, D., additional, Fedosseev, V. N., additional, Fraile, L. M., additional, Franchoo, S., additional, Gladnishki, K., additional, Huyse, M., additional, Ivanov, O., additional, Ivanov, V., additional, Iwanicki, J., additional, Jolie, J., additional, Konstantinopoulos, T., additional, Kröll, Th., additional, Krücken, R., additional, Köster, U., additional, Lagoyannis, A., additional, Lo Bianco, G., additional, Maierbeck, P., additional, Marsh, B. A., additional, Napiorkowski, P., additional, Patronis, N., additional, Pauwels, D., additional, Rainovski, G., additional, Reiter, P., additional, Riisager, K., additional, Seliverstov, M., additional, Sletten, G., additional, Van de Walle, J., additional, Van Duppen, P., additional, Voulot, D., additional, Warr, N., additional, Wenander, F., additional, and Wrzosek, K., additional

Published
2008
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15. Coulomb Excitation ofCu68,70: First Use of Postaccelerated Isomeric Beams

Author

Stefanescu, I., primary, Georgiev, G., additional, Ames, F., additional, Äystö, J., additional, Balabanski, D. L., additional, Bollen, G., additional, Butler, P. A., additional, Cederkäll, J., additional, Champault, N., additional, Davinson, T., additional, Maesschalck, A. De, additional, Delahaye, P., additional, Eberth, J., additional, Fedorov, D, additional, Fedosseev, V. N., additional, Fraile, L. M., additional, Franchoo, S., additional, Gladnishki, K., additional, Habs, D., additional, Heyde, K., additional, Huyse, M., additional, Ivanov, O., additional, Iwanicki, J., additional, Jolie, J., additional, Jonson, B., additional, Kröll, Th., additional, Krücken, R., additional, Kester, O., additional, Köster, U, additional, Lagoyannis, A., additional, Liljeby, L., additional, Bianco, G. Lo, additional, Marsh, B. A., additional, Niedermaier, O., additional, Nilsson, T., additional, Oinonen, M., additional, Pascovici, G., additional, Reiter, P., additional, Saltarelli, A., additional, Scheit, H., additional, Schwalm, D., additional, Sieber, T., additional, Smirnova, N., additional, Walle, J. Van De, additional, Duppen, P. Van, additional, Zemlyanoi, S., additional, Warr, N., additional, Weisshaar, D., additional, and Wenander, F., additional

Published
2007
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16. Transition Probabilities inPr134: A Test for Chirality in Nuclear Systems

Author

Tonev, D., primary, de Angelis, G., additional, Petkov, P., additional, Dewald, A., additional, Brant, S., additional, Frauendorf, S., additional, Balabanski, D. L., additional, Pejovic, P., additional, Bazzacco, D., additional, Bednarczyk, P., additional, Camera, F., additional, Fitzler, A., additional, Gadea, A., additional, Lenzi, S., additional, Lunardi, S., additional, Marginean, N., additional, Möller, O., additional, Napoli, D. R., additional, Paleni, A., additional, Petrache, C. M., additional, Prete, G., additional, Zell, K. O., additional, Zhang, Y. H., additional, Zhang, Jing-ye, additional, Zhong, Q., additional, and Curien, D., additional

Published
2006
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17. Magnetic Moment of the Fragmentation-AlignedF61e (9/2+)Isomer

Author

Matea, I., primary, Georgiev, G., additional, Daugas, J. M., additional, Hass, M., additional, Neyens, G., additional, Astabatyan, R., additional, Baby, L. T., additional, Balabanski, D. L., additional, Bélier, G., additional, Borremans, D., additional, Goldring, G., additional, Goutte, H., additional, Himpe, P., additional, Lewitowicz, M., additional, Lukyanov, S., additional, Méot, V., additional, Santos, F. de Oliveira, additional, Penionzhkevich, Yu. E., additional, Roig, O., additional, and Sawicka, M., additional

Published
2004
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18. Quadrupole Moment of the11−Intruder Isomer inP196band Its Implications for the16−Shears Band Head

Author

Vyvey, K., primary, Chmel, S., additional, Neyens, G., additional, Hübel, H., additional, Balabanski, D. L., additional, Borremans, D., additional, Coulier, N., additional, Coussement, R., additional, Georgiev, G., additional, Nenoff, N., additional, Pancholi, S., additional, Rossbach, D., additional, Schwengner, R., additional, Teughels, S., additional, and Frauendorf, S., additional

Published
2002
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19. Chiral Doublet Structures in Odd-OddN=75Isotones: Chiral Vibrations

Author

Starosta, K., primary, Koike, T., additional, Chiara, C. J., additional, Fossan, D. B., additional, LaFosse, D. R., additional, Hecht, A. A., additional, Beausang, C. W., additional, Caprio, M. A., additional, Cooper, J. R., additional, Krücken, R., additional, Novak, J. R., additional, Zamfir, N. V., additional, Zyromski, K. E., additional, Hartley, D. J., additional, Balabanski, D. L., additional, Zhang, Jing-ye, additional, Frauendorf, S., additional, and Dimitrov, V. I., additional

Published
2001
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20. Static Quadrupole Moment of the Five-QuasiparticleK=352Isomer inW179Studied with the Level-Mixing Spectroscopy Method

Author

Balabanski, D. L., primary, Vyvey, K., additional, Neyens, G., additional, Coulier, N., additional, Coussement, R., additional, Georgiev, G., additional, Lèpine-Szily, A., additional, Ternier, S., additional, Teughels, S., additional, Mineva, M., additional, Walker, P. M., additional, Blaha, P., additional, Almehed, D., additional, and Frauendorf, S., additional

Published
2001
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21. Large Enhancement of the Sub-barrier Fusion Probability for a Halo Nucleus

Author

Trotta, M., primary, Sida, J. L., additional, Alamanos, N., additional, Andreyev, A., additional, Auger, F., additional, Balabanski, D. L., additional, Borcea, C., additional, Coulier, N., additional, Drouart, A., additional, Durand, D. J. C., additional, Georgiev, G., additional, Gillibert, A., additional, Hinnefeld, J. D., additional, Huyse, M., additional, Jouanne, C., additional, Lapoux, V., additional, Lépine, A., additional, Lumbroso, A., additional, Marie, F., additional, Musumarra, A., additional, Neyens, G., additional, Ottini, S., additional, Raabe, R., additional, Ternier, S., additional, Van Duppen, P., additional, Vyvey, K., additional, Volant, C., additional, and Wolski, R., additional

Published
2000
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22. Magnetic Moment of the1−Ground State inN18Measured with a NewβLevel Mixing Nuclear Magnetic Resonance Technique

Author

Neyens, G., primary, Coulier, N., additional, Teughels, S., additional, Georgiev, G., additional, Brown, B. A., additional, Rogers, W. F., additional, Balabanski, D. L., additional, Coussement, R., additional, Lépine-Szily, A., additional, Lewitowicz, M., additional, Mittig, W., additional, de Oliveira Santos, F., additional, Roussel-Chomaz, P., additional, Ternier, S., additional, Vyvey, K., additional, and Cortina-Gil, D., additional

Published
1999
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23. Spins, Electromagnetic Moments, and Isomers of 107-129Cd.

Author

Yordanov, D. T., Balabanski, D. L., Bieroń, J., Bissell, M. L., Blaum, K., Budinčević, I., Fritzsche, S., Frömmgen, N., Georgiev, G., Geppert, Ch., Hammen, M., Kowalska, M., Kreim, K., Krieger, A., Neugart, R., Nörtershäuser, W., Papuga, J., and Schmidt, S.

Subjects
*NUCLEAR isomers, *ISOTOPES, *CADMIUM, *LASER spectroscopy, *NUCLEAR excitation, *RADIOACTIVE nuclear beams, *QUADRUPOLE moments, *QUANTUM mechanics
Abstract

The neutron-rich isotopes of cadmium up to the N=82 shell closure have been investigated by high-resolution laser spectroscopy. Deep-uv excitation at 214.5 nm and radioactive-beam bunching provided the required experimental sensitivity. Long-lived isomers are observed in 127Cd and 129Cd for the first time. One essential feature of the spherical shell model is unambiguously confirmed by a linear increase of the 11/2- quadrupole moments. Remarkably, this mechanism is found to act well beyond the h11/2 shell. [ABSTRACT FROM AUTHOR]

Published
2013
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24. Simple Nuclear Structure in 111-129Cd from Atomic Isomer Shifts.

Author

Yordanov, D. T., Balabanski, D. L., Bissell, M. L., Blaum, K., Budinčević, I., Cheal, B., Flanagan, K., Frömmgen, N., Georgiev, G., Geppert, Ch., Hammen, M., Kowalska, M., Kreim, K., Krieger, A., Meng, J., Neugart, R., Neyens, G., Nörtershäuser, W., Rajabali, M. M., and Papuga, J.

Subjects
*CADMIUM isotopes, *ISOMER shifts (Mossbauer spectroscopy), *NUCLEAR structure
Abstract

Isomer shifts have been determined in 111-129Cd by high-resolution laser spectroscopy at CERN-ISOLDE. The corresponding mean square charge-radii changes, from the 1/2+ and the 3/2+ ground states to the 11/2- isomers, have been found to follow a distinct parabolic dependence as a function of the atomic mass number. Since the isomers have been previously associated with simplicity due to the linear mass dependence of their quadrupole moments, the regularity of the isomer shifts suggests a higher order of symmetry affecting the ground states in addition. A comprehensive description assuming nuclear deformation is found to accurately reproduce the radii differences in conjunction with the known quadrupole moments. This intuitive interpretation is supported by covariant density functional theory. [ABSTRACT FROM AUTHOR]

Published
2016
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25. From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of 100-130Cd.

Author

Hammen, M., Nörtershäuser, W., Balabanski, D. L., Bissell, M. L., Blaum, K., Budinčević6, I., Cheal, B., Flanagan, K. T., Frömmgen, N., Georgiev, G., Geppert, Ch., Kowalska, M., Kreim, K., Krieger, A., Nazarewicz, W., Neugart, R., Neyens, G., Papuga, J., Reinhard, P.-G., and Rajabali, M. M.

Subjects
*CADMIUM, *CALCIUM, *LASER spectroscopy
Abstract

Differences in mean-square nuclear charge radii of 100-130Cd are extracted from high-resolution collinear laser spectroscopy of the 5s ²S1/2→5p ²P3/2 transition of the ion and from the 5s5p ³P2→5s6s ³S1 transition in atomic Cd. The radii show a smooth parabolic behavior on top of a linear trend and a regular odd-even staggering across the almost complete sdgh shell. They serve as a first test for a recently established new Fayans functional and show a remarkably good agreement in the trend as well as in the total nuclear charge radius. [ABSTRACT FROM AUTHOR]

Published
2018
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26. 9737Rb60: The Cornerstone of the Region of Deformation around A~100.

Author

Sotty, C., Zielińska, M., Georgiev, G., Balabanski, D. L., Stuchbery, A. E., Blazhev, A., Bree, N., Chevrier, R., Gupta, S. Das, Daugas, J. M., Davinson, T., De Witte, H., Diriken, J., Gaffney, L. P., Geibel, K., Hadyńska-Klęk, K., Kondev, F. G., Konki, J., Kröll, T., and Morel, P.

Subjects
*NEUTRONS, *COULOMB excitation, *RADIOACTIVE nuclear beams, *NUCLEAR rotational states, *EXCITATION spectrum
Abstract

Excited states of the neutron-rich nuclei 97,99Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of 97Rb as being built on the pg9/2 [431] 3/2+ Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A~100 and indicates that the deformation of 97Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The 99Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams. [ABSTRACT FROM AUTHOR]

Published
2015
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27. Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in 24Mg.

Author

Kusoglu, A., Stuchbery, A. E., Georgiev, G., Brown, B. A., Goasduff, A., Atanasova, L., Balabanski, D. L., Bostan, M., Danchev, M., Detistov, P., Gladnishki, K. A., Ljungvall, J., Matea, I., Radeck, D., Sotty, C., Stefan, I., Verney, D., and Yordanov, D. T.

Subjects
*MAGNETISM, *NUCLEON-nucleon interactions, *NUCLEAR reactions, *PARTICLE interactions, *QUARK-quark interactions, *QUANTUM chromodynamics
Abstract

A precise measurement of the g factor of the first-excited state in the self-conjugate (N=Z) nucleus 24Mg is performed by a new time-differential recoil-in-vacuum method based on the hyperfine field of hydrogenlike ions. Theory predicts that the g factors of such states, in which protons and neutrons occupy the same orbits, should depart from 0.5 by a few percent due to configuration mixing and meson-exchange effects. The experimental result, g=0.538±0.013, is in excellent agreement with recent shell-model calculations and shows a departure from 0.5 by almost 3 standard deviations, thus achieving, for the first time, the precision and accuracy needed to test theory. Proof of the new method opens the way for wide applications including measurements of the magnetism of excited states of exotic nuclei produced as radioactive beams. [ABSTRACT FROM AUTHOR]

Published
2015
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28. Is the 7/21 Isomer State of 43S Spherical?

Author

Chevrier, R., Daugas, J. M., Gaudefroy, L., Ichikawa, Y., Ueno, H., Hass, M., Haas, H., Cottenier, S., Aoi, N., Asahi, K., Balabanski, D. L., Fukuda, N., Furukawa, T., Georgiev, G., Hayashi, H., Iijima, H., Inabe, N., Inoue, T., Ishihara, M., and Ishii, Y.

Subjects
*NUCLEAR isomers, *SPECTRUM analysis, *QUADRUPOLE moments, *QUANTUM perturbations, *NUCLEAR shell theory, *NUCLEAR physics
Abstract

We report on the spectroscopic quadrupole moment measurement of the 7/2¡" isomeric state in "JgS27 [E* = 320.5(5) keV, Tt/2 = 415(3) ns], using the time dependent perturbed angular distribution tech-nique at the RIKEN RIBF facility. Our value, | Qs |= 23(3)

Published
2012
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29. Direct Observation of Competing M1 and M3 Transitions in ^{10}B.

Author

Kuşoğlu A, Balabanski DL, Hu RZ, Fan SQ, Xu FR, Constantin P, Söderström PA, Cuciuc M, Aogaki S, Ban RS, Borcea R, Coman A, Corbu R, Costache C, Covali A, Dinescu I, Florea NM, Iancu V, Ionescu A, Mărginean NM, Mihai C, Mihai RE, Nedelcu CV, Petruse T, Pai H, Pappalardo A, Sirbu OA, Sotty CO, Stan L, State AN, Testov DA, Tozar T, Turturica A, Turturica G, Ujeniuc S, Ur CA, Vasilca V, and Zhu F

Abstract

Excited states in ^{10}B were populated with the ^{10}B(p,p^{'}γ)^{10}B^{*} reaction at 8.5 MeV and their γ decay was investigated via coincidence γ-ray spectroscopy. The emitted γ rays were measured using large-volume LaBr_{3}:Ce and CeBr_{3} detectors placed in anti-Compton shields. This allowed the observation of weak γ-ray transitions, such as the M3 transition between the J^{π},T=0^{+},1 isobaric analog state (IAS) and the J^{π},T=3^{+},0 ground state and the E2 transition between the J^{π},T=2_{1}^{+},0 state and the IAS, i.e., performing measurements of branching ratios at the level of λ≥10^{-4}. For the first time in ^{10}B, the competing M1 and M3 transitions from the decay of the IAS have been observed in a γ spectroscopy experiment. The experimental results are compared with ab initio no-core shell model calculation using the newest version of the local position-space chiral N^{3}LO nucleon-nucleon interaction. The calculations reproduce correctly the ordering of the bound states in ^{10}B, and are in reasonable agreement with the observed branching ratios and reduced transition probabilities.

Published
2024
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30. g Factor of the ^{99}Zr (7/2^{+}) Isomer: Monopole Evolution in the Shape-Coexisting Region.

Author

Boulay F, Simpson GS, Ichikawa Y, Kisyov S, Bucurescu D, Takamine A, Ahn DS, Asahi K, Baba H, Balabanski DL, Egami T, Fujita T, Fukuda N, Funayama C, Furukawa T, Georgiev G, Gladkov A, Hass M, Imamura K, Inabe N, Ishibashi Y, Kawaguchi T, Kawamura T, Kim W, Kobayashi Y, Kojima S, Kusoglu A, Lozeva R, Momiyama S, Mukul I, Niikura M, Nishibata H, Nishizaka T, Odahara A, Ohtomo Y, Ralet D, Sato T, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tao LC, Togano Y, Tominaga D, Ueno H, Yamazaki H, Yang XF, and Daugas JM

Abstract

The gyromagnetic factor of the low-lying E=251.96(9)  keV isomeric state of the nucleus ^{99}Zr was measured using the time-dependent perturbed angular distribution technique. This level is assigned a spin and parity of J^{π}=7/2^{+}, with a half-life of T_{1/2}=336(5)  ns. The isomer was produced and spin aligned via the abrasion-fission of a ^{238}U primary beam at RIKEN RIBF. A magnetic moment |μ|=2.31(14)μ_{N} was deduced showing that this isomer is not single particle in nature. A comparison of the experimental values with interacting boson-fermion model IBFM-1 results shows that this state is strongly mixed with a main νd_{5/2} composition. Furthermore, it was found that monopole single-particle evolution changes significantly with the appearance of collective modes, likely due to type-II shell evolution.

Published
2020
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31. From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of ^{100-130}Cd.

Author

Hammen M, Nörtershäuser W, Balabanski DL, Bissell ML, Blaum K, Budinčević I, Cheal B, Flanagan KT, Frömmgen N, Georgiev G, Geppert C, Kowalska M, Kreim K, Krieger A, Nazarewicz W, Neugart R, Neyens G, Papuga J, Reinhard PG, Rajabali MM, Schmidt S, and Yordanov DT

Abstract

Differences in mean-square nuclear charge radii of ^{100-130}Cd are extracted from high-resolution collinear laser spectroscopy of the 5s ^{2}S_{1/2}→5p ^{2}P_{3/2} transition of the ion and from the 5s5p ^{3}P_{2}→5s6s ^{3}S_{1} transition in atomic Cd. The radii show a smooth parabolic behavior on top of a linear trend and a regular odd-even staggering across the almost complete sdgh shell. They serve as a first test for a recently established new Fayans functional and show a remarkably good agreement in the trend as well as in the total nuclear charge radius.

Published
2018
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32. Simple Nuclear Structure in (111-129)Cd from Atomic Isomer Shifts.

Author

Yordanov DT, Balabanski DL, Bissell ML, Blaum K, Budinčević I, Cheal B, Flanagan K, Frömmgen N, Georgiev G, Geppert Ch, Hammen M, Kowalska M, Kreim K, Krieger A, Meng J, Neugart R, Neyens G, Nörtershäuser W, Rajabali MM, Papuga J, Schmidt S, and Zhao PW

Abstract

Isomer shifts have been determined in ^{111-129}Cd by high-resolution laser spectroscopy at CERN-ISOLDE. The corresponding mean square charge-radii changes, from the 1/2^{+} and the 3/2^{+} ground states to the 11/2^{-} isomers, have been found to follow a distinct parabolic dependence as a function of the atomic mass number. Since the isomers have been previously associated with simplicity due to the linear mass dependence of their quadrupole moments, the regularity of the isomer shifts suggests a higher order of symmetry affecting the ground states in addition. A comprehensive description assuming nuclear deformation is found to accurately reproduce the radii differences in conjunction with the known quadrupole moments. This intuitive interpretation is supported by covariant density functional theory.

Published
2016
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33. Publisher's Note: (37)(97)Rb(60): The Cornerstone of the Region of Deformation around A∼100 [Phys. Rev. Lett. 115, 172501 (2015)].

Author

Sotty C, Zielińska M, Georgiev G, Balabanski DL, Stuchbery AE, Blazhev A, Bree N, Chevrier R, Das Gupta S, Daugas JM, Davinson T, De Witte H, Diriken J, Gaffney LP, Geibel K, Hadyńska-Klek K, Kondev FG, Konki J, Kröll T, Morel P, Napiorkowski P, Pakarinen J, Reiter P, Scheck M, Seidlitz M, Siebeck B, Simpson G, Törnqvist H, Warr N, and Wenander F

Published
2015
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34. (97)(37)Rb(60): The Cornerstone of the Region of Deformation around A ∼ 100 [corrected].

Author

Sotty C, Zielińska M, Georgiev G, Balabanski DL, Stuchbery AE, Blazhev A, Bree N, Chevrier R, Das Gupta S, Daugas JM, Davinson T, De Witte H, Diriken J, Gaffney LP, Geibel K, Hadyńska-Klȩk K, Kondev FG, Konki J, Kröll T, Morel P, Napiorkowski P, Pakarinen J, Reiter P, Scheck M, Seidlitz M, Siebeck B, Simpson G, Törnqvist H, Warr N, and Wenander F

Abstract

Excited states of the neutron-rich nuclei (97,99)Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of (97)Rb as being built on the πg(9/2) [431] 3/2(+) Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of (97)Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The (99)Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.

Published
2015
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35. Is the 7/2(1)- isomer state of 43S spherical?

Author

Chevrier R, Daugas JM, Gaudefroy L, Ichikawa Y, Ueno H, Hass M, Haas H, Cottenier S, Aoi N, Asahi K, Balabanski DL, Fukuda N, Furukawa T, Georgiev G, Hayashi H, Iijima H, Inabe N, Inoue T, Ishihara M, Ishii Y, Kameda D, Kubo T, Nanao T, Neyens G, Ohnishi T, Rajabali MM, Suzuki K, Takeda H, Tsuchiya M, Vermeulen N, Watanabe H, and Yoshimi A

Abstract

We report on the spectroscopic quadrupole moment measurement of the 7/2(1)(-) isomeric state in (16)(43)S(27) [E*=320.5(5) keV, T(1/2)=415(3) ns], using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, |Q(s)|=23(3) efm(2), is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured |Q(s)|, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.

Published
2012
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36. Precision measurement of 11Li moments: influence of halo neutrons on the 9Li core.

Author

Neugart R, Balabanski DL, Blaum K, Borremans D, Himpe P, Kowalska M, Lievens P, Mallion S, Neyens G, Vermeulen N, and Yordanov DT

Abstract

The electric quadrupole moment and the magnetic moment of the 11Li halo nucleus have been measured with more than an order of magnitude higher precision than before, |Q| = 33.3(5) mb and mu = +3.6712(3)muN, revealing a 8.8(1.5)% increase of the quadrupole moment relative to that of 9Li. This result is compared to various models that aim at describing the halo properties. In the shell model an increased quadrupole moment points to a significant occupation of the 1d orbits, whereas in a simple halo picture this can be explained by relating the quadrupole moments of the proton distribution to the charge radii. Advanced models so far fail to reproduce simultaneously the trends observed in the radii and quadrupole moments of the lithium isotopes.

Published
2008
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37. Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40.

Author

Stefanescu I, Georgiev G, Balabanski DL, Blasi N, Blazhev A, Bree N, Cederkäll J, Cocolios TE, Davinson T, Diriken J, Eberth J, Ekström A, Fedorov D, Fedosseev VN, Fraile LM, Franchoo S, Gladnishki K, Huyse M, Ivanov O, Ivanov V, Iwanicki J, Jolie J, Konstantinopoulos T, Kröll T, Krücken R, Köster U, Lagoyannis A, Lo Bianco G, Maierbeck P, Marsh BA, Napiorkowski P, Patronis N, Pauwels D, Rainovski G, Reiter P, Riisager K, Seliverstov M, Sletten G, Van de Walle J, Van Duppen P, Voulot D, Warr N, Wenander F, and Wrzosek K

Abstract

Collective properties of the low-lying levels in the odd-A 67-73Cu were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99 MeV/u. In 67,69Cu, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In 71,73Cu, besides the known transitions deexciting the single-particle-like 5/2(-) and core-coupled 7/2(-) levels, gamma rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of beta-decay work and comparison with the systematics, a spin 1/2(-) is suggested for these excited states. Three B(E2) values were determined in each of the four isotopes. The results indicate a significant change in the structure of the odd-A Cu isotopes beyond N=40 where single-particle-like and collective levels are suggested to coexist at very low excitation energies.

Published
2008
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38. Coulomb excitation of 68,70Cu: first use of postaccelerated isomeric beams.

Author

Stefanescu I, Georgiev G, Ames F, Aystö J, Balabanski DL, Bollen G, Butler PA, Cederkäll J, Champault N, Davinson T, De Maesschalck A, Delahaye P, Eberth J, Fedorov D, Fedosseev VN, Fraile LM, Franchoo S, Gladnishki K, Habs D, Heyde K, Huyse M, Ivanov O, Iwanicki J, Jolie J, Jonson B, Kröll T, Krücken R, Kester O, Köster U, Lagoyannis A, Liljeby L, Lo Bianco G, Marsh BA, Niedermaier O, Nilsson T, Oinonen M, Pascovici G, Reiter P, Saltarelli A, Scheit H, Schwalm D, Sieber T, Smirnova N, Van De Walle J, Van Duppen P, Zemlyanoi S, Warr N, Weisshaar D, and Wenander F

Abstract

We report on the first low-energy Coulomb excitation measurements with radioactive Ipi=6- beams of odd-odd nuclei 68,70Cu. The beams were produced at ISOLDE, CERN and were post-accelerated by REX-ISOLDE to 2.83 MeV/nucleon. Gamma rays were detected with the MINIBALL spectrometer. The 6- beam was used to study the multiplet of states (3-, 4-, 5-, 6-) arising from the pi2p3/2 nu 1g9/2 configuration. The 4- state of the multiplet was populated via Coulomb excitation and the B(E2;6--->4-) value was determined in both nuclei. The results obtained illustrate the fragile stability of the Z=28 shell and N=40 subshell closures. A comparison with large-scale shell-model calculations using the 56Ni core shows the importance of the proton excitations across the Z=28 shell gap to the understanding of the nuclear structure in the neutron-rich nuclei with N approximately 40.

Published
2007
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39. Transition probabilities in 134Pr: a test for chirality in nuclear systems.

Author

Tonev D, de Angelis G, Petkov P, Dewald A, Brant S, Frauendorf S, Balabanski DL, Pejovic P, Bazzacco D, Bednarczyk P, Camera F, Fitzler A, Gadea A, Lenzi S, Lunardi S, Marginean N, Möller O, Napoli DR, Paleni A, Petrache CM, Prete G, Zell KO, Zhang YH, Zhang JY, Zhong Q, and Curien D

Abstract

Exited states in 134Pr were populated in the fusion-evaporation reaction 119Sn(19F,4n)134Pr. Recoil distance Doppler-shift and Doppler-shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner Bismuth Germanate ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively. Reduced transition probabilities in 134Pr are compared to the predictions of the two quasiparticle + triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in 134Pr underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in 134Pr can be supported.

Published
2006
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40. Magnetic moment of the fragmentation-aligned 61Fe (9/2(+)) isomer.

Author

Matea I, Georgiev G, Daugas JM, Hass M, Neyens G, Astabatyan R, Baby LT, Balabanski DL, Bélier G, Borremans D, Goldring G, Goutte H, Himpe P, Lewitowicz M, Lukyanov S, Méot V, Santos Fde O, Penionzhkevich YE, Roig O, and Sawicka M

Abstract

We report on the g factor measurement of an isomer in the neutron-rich (61)(26)Fe (E(*)=861 keV and T(1/2)=239(5) ns). The isomer was produced and spin aligned via a projectile-fragmentation reaction at intermediate energy, the time dependent perturbed angular distribution method being used for the measurement of the g factor. For the first time, due to significant improvements of the experimental technique, an appreciable residual alignment of the nuclear spin ensemble has been observed, allowing a precise determination of its g factor, including the sign: g=-0.229(2). In this way we open the possibility to study moments of very neutron-rich short-lived isomers, not accessible via other production and spin-orientation methods.

Published
2004
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41. Quadrupole moment of the 11(-) intruder isomer in 196Pb and its implications for the 16(-) shears band head.

Author

Vyvey K, Chmel S, Neyens G, Hübel H, Balabanski DL, Borremans D, Coulier N, Coussement R, Georgiev G, Nenoff N, Pancholi S, Rossbach D, Schwengner R, Teughels S, and Frauendorf S

Abstract

The quadrupole moment of the 11(-) isomer in 196Pb has been measured by the level mixing spectroscopy method. This state has a pi(3s(-2)(1/2)1h(9/2)1i(13/2))11(-) configuration which is involved in most of the shears band heads in the Pb region. The first directly measured value of Q(s)(11(-)) = (-)3.41(66) b, coupled to the previously known quadrupole moment of the nu(1i(-2)(13/2))12(+) isomer allows us to estimate the quadrupole moment of the 16(-) shears band head as Q(s)(16(-)) = -0.32(10) b. The experimental values are compared to tilted axis cranking calculations, giving insight into the validity of the additivity approach to couple quadrupole moments and on the amount of deformation in the shears bands.

Published
2002
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42. Static quadrupole moment of the five-quasiparticle k = 35/2 isomer in (179)w studied with the level-mixing spectroscopy method.

Author

Balabanski DL, Vyvey K, Neyens G, Coulier N, Coussement R, Georgiev G, Lèpine-Szily A, Ternier S, Teughels S, Mineva M, Walker PM, Blaha P, Almehed D, and Frauendorf S

Abstract

The spectroscopic quadrupole moment of the high-spin, high- K five-quasiparticle isomer (K(pi) = 35/2(-), T(1/2) = 750(80) ns, E(i) = 3349 keV) in (179)W has been determined using the level mixing spectroscopy method. A value Q(s) = 4.00(+0.83-1.06)e b was derived, which corresponds to an intrinsic quadrupole moment Q0 = 4.73(+0.98-1.25)e b and to a quadrupole deformation beta(2) = 0.185(+0.038-0.049). These values differ significantly from the deduced ground-state quadrupole moments and are in disagreement with the current theoretical predictions in this mass region.

Published
2001
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