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388 results on '"Herskind, B."'

1. Shape evolution and magnetic rotation in 141Nd

Author

Zerrouki, T., Petrache, C. M., Leguillon, R., Hauschild, K., Korichi, A., Lopez-Martens, A., Frauendorf, S., Ragnarsson, I., Hübel, H., Neußer-Neffgen, A., Al-Khatib, A., Bringel, P., Bürger, A., Nenoff, N., Schönwaßer, G., Singh, A. K., Curien, D., Hagemann, G. B., Herskind, B., Sletten, G., Fallon, P., Görgen, A., and Bednarczyk, P.

Published
2015
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2. High-spin states and signature inversion in odd-odd 168Lu

Author

Roux, D. G., Ma, W. C., Hagemann, G. B., Elema, D. R., Fallon, P., Gorgen, A., Herskind, B., Huebel, H., Marsh, J. C., Sletten, G., Ward, D., and Wilson, J. N.

Subjects
EXCITATIONS, NUCLEI, WOBBLING MODE, BANDS
Abstract

High-spin states of the odd-odd nucleus Lu-168 were populated in the Sb-123(Ca-48, 3n) Lu-168 reaction at a beam energy of 203 MeV and decay gamma rays measured using the Gammasphere spectrometer array. The level scheme has been extended from spin 27 to 50 (h) over bar, and three new rotational bands have been added. A number of interband linking transitions were revealed, so that all but two bands could be connected with each other. High-spin band crossings, above the first vi(13/2) alignment, are delineated in most bands. Significant signature inversions are identified for the first time in the bands involving both favored and unfavored signatures of the pi h(9/2) orbital, which are likely caused by a residual proton-neutron interaction. A signature inversion with small amplitude is also observed in the pi d(5/2) circle times vi(13/2) band. Configurations are suggested for all bands based on their experimental properties, with the help of Cranked Shell Model calculations. No evidence is found for triaxial strongly deformed structures that were predicted by the calculations.

Published
2021

4. Highly deformed band structures due to core excitations in ¹²³Xe

Author

Basu, Anwesha, Singh, A.K., Ragnarsson, I., Carlsson, B.G., Kardan, A., Hagemann, G.B., Sletten, G., Herskind, B., Hübel, H., Chmel, Sebastian, Wilson, A.N., Rogers, J., Janssens, R.V.F., Carpenter, M.P., Khoo, T.L., Kondev, F.G., Lauritsen, T., Zhu, S., Korichi, A., Fallon, P., Nyako, B.M., Timar, J., and Publica

Abstract

High-spin states in ¹²³Xe were populated in the 80Se(48Ca, 5n)¹²³Xe reaction at a beam energy of 207 MeV. g-ray coincidence events were recorded with the Gammasphere spectrometer. Four new high-spin bands have been discovered in this nucleus. The bands are compared with those calculated within the framework of cranked Nilsson-Strutinsky and cranked Nilsson-Strutinsky-Bogoliubov models. It is concluded that the configurations of the bands involve two-proton excitations across the Z=50 as well as excitation of neutrons across the N=82 shell gaps resulting in a large deformation, e2≈0.30 and g≈5°.

Published
2021

5. Highly deformed band structures due to core excitations in Xe 123

Author

Wilson, A.N., Carlsson, B.G., Khoo, T.L., Janssens, R.V.F., Timár, J., Kondev, F.G., Sletten, G., Rogers, J., Nyakó, B.M., Lauritsen, T., Korichi, A., Chmel, S., Basu, A., Singh, A.K., Zhu, S., Herskind, B., Hübel, H., Fallon, P., Kardan, A., Ragnarsson, I., Hagemann, G.B., and Carpenter, M.P.

Abstract

High-spin states in Xe123 were populated in the Se80(Ca48, 5n)Xe123 reaction at a beam energy of 207 MeV. γ-ray coincidence events were recorded with the Gammasphere spectrometer. Four new high-spin bands have been discovered in this nucleus. The bands are compared with those calculated within the framework of cranked Nilsson-Strutinsky and cranked Nilsson-Strutinsky-Bogoliubov models. It is concluded that the configurations of the bands involve two-proton excitations across the Z=50 as well as excitation of neutrons across the N=82 shell gaps resulting in a large deformation, 2≈0.30 and γ≈5°C.

Published
2021
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6. Transition to non-collective states at high spin in 124Xe

Author

Al-Khatib, A., Hübel, H., Bringel, P., Engelhardt, C., Neußer-Neffgen, A., Hagemann, G. B., Hansen, C. R., Herskind, B., Sletten, G., Bracco, A., Camera, F., Benzoni, G., Fallon, P., Clark, R. M., Carpenter, M. P., Janssens, R. V. F., Khoo, T. L., Lauritsen, T., Chowdhury, P., Amro, H., Singh, A. K., and Bengtsson, R.

Published
2008
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7. Evolution of collective and noncollective structures in Xe 123

Author

Chmel, S., Timár, J., Korichi, A., Hagemann, G.B., Janssens, R.V.F., Nyakó, B.M., Fallon, P., Singh, A.K., Basu, A., Carpenter, M.P., Wilson, A.N., Ragnarsson, I., Sletten, G., Hübel, H., Nag, S., Zhu, S., Lauritsen, T., Rogers, J., Khoo, T.L., Herskind, B., and Kondev, F.G.

Abstract

An experiment involving a heavy-ion-induced fusion-evaporation reaction was carried out where high-spin states of Xe123 were populated in the Se80(Ca48,5n)Xe123 reaction at 207 MeV beam energy. Gamma-ray coincidence events were recorded with the Gammasphere Ge detector array. The previously known level scheme was confirmed and enhanced with the addition of five new band structures and several interband transitions. Cranked Nilsson-Strutinsky (CNS) calculations were performed and compared with the experimental results in order to assign configurations to the bands.

Published
2020
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8. Evolution of collective and noncollective structures in ¹²³Xe

Author

Basu, Anwesha, Singh, A.K., Nag, S., Hagemann, G.B., Sletten, G., Herskind, B., Wilson, A.N., Rogers, J., Ragnarsson, I., Hübel, H., Chmel, Sebastian, Janssens, R.V.F., Carpenter, M.P., Khoo, T.L., Kondev, F.G., Lauritsen, T., Zhu, S., Korichi, A., Fallon, P., Nyako, B.M., Timar, J., and Publica

Abstract

An experiment involving a heavy-ion-induced fusion-evaporation reaction was carried out where high-spin states of ¹²³Xe were populated in the 80Se(48Ca, 5n)¹²³Xe reaction at 207 MeV beam energy. Gamma-ray coincidence events were recorded with the Gammasphere Ge detector array. The previously known level scheme was confirmed and enhanced with the addition of five new band structures and several interband transitions. Cranked Nilsson-Strutinsky (CNS) calculations were performed and compared with the experimental results in order to assign configurations to the bands.

Published
2020

9. Evolution of collective and noncollective structures in $^{123}\mathrm{Xe}$

Author

Basu, Anwesha, Singh, A.K., Nag, S., Hagemann, G.B., Sletten, G., Herskind, B., Wilson, A.N., Rogers, J., Ragnarsson, I., Hübel, H., Chmel, S., Janssens, R.V.F., Carpenter, M.P., Khoo, T.L., Kondev, F.G., Lauritsen, T., Zhu, S., Korichi, A., Fallon, P., Nyakó, B.M., Timár, J., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Nuclear Structure
Abstract

International audience; An experiment involving a heavy-ion-induced fusion-evaporation reaction was carried out where high-spin states of Xe123 were populated in the Se80(Ca48,5n)Xe123 reaction at 207 MeV beam energy. Gamma-ray coincidence events were recorded with the Gammasphere Ge detector array. The previously known level scheme was confirmed and enhanced with the addition of five new band structures and several interband transitions. Cranked Nilsson-Strutinsky (CNS) calculations were performed and compared with the experimental results in order to assign configurations to the bands.

Published
2020

10. Evidence for wobbling excitation in 161Lu

Author

Bringel, P., Hagemann, G. B., Hübel, H., Al-khatib, A., Bednarczyk, P., Bürger, A., Curien, D., Gangopadhyay, G., Herskind, B., Jensen, D. R., Joss, D. T., Kröll, Th., Lo Bianco, G., Lunardi, S., Ma, W. C., Nenoff, N., Neußer-Neffgen, A., Petrache, C. M., Schönwasser, G., Simpson, J., Singh, A. K., Singh, N., and Sletten, G.

Published
2005
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13. Gamma-ray feeding and decay of superdeformed states

Author

Lopez-Martens, A., Døssing, T., Khoo, T. L., Herskind, B., Lauristen, T., Matsuo, M., Yoshida, K., Korichi, A., Hannachi, F., Ahmad, I., Amro, H., de Angelis, G., Bazzacco, D., Beausang, C., Bouchez, E., Bringel, P., Calderin, I. J., Carpenter, M. P., Fischer, S. M., Hackman, G., Hauschild, K., Hübel, H., Hurstel, A., Janssens, R. V. F., Kondev, F. G., Korten, W., Kröll, T., Le Coz, Y., Marginean, N., Menegazzo, R., Mergel, E., Napoli, D., Nenoff, N., Neumann, S., Neusser, A., Nisius, D., Mukherjee, G., Rejmund, M., Rossbach, D., Rossi Alvarez, C., Schück, C., Schonwasser, G., Singh, A. K., Theisen, Ch, Vieu, Ch, and Ur, C.

Published
2003
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16. Study of 169Hf at high rotational frequency

Author

Schmidt, K.A., Bergström, M., Hagemann, G.B., Herskind, B., Sletten, G., Varmette, P.G., Domscheit, J., Hübel, H., Ødegård, S.W., Frattini, S., Bracco, A., Million, B., Carpenter, M.P., Janssens, R.V.F., Khoo, T.L., Lauritsen, T., Lister, C.J., Siem, S., Wiedenhöver, I., Hartley, D.J., Riedinger, L.L., Maj, A., Ma, W.C., and Terry, R.

Published
2001
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18. Co-existing coupling schemes at high spin in 166Hf

Author

Jensen, D. Ringkjøbing, Domscheit, J., Hagemann, G. B., Bergström, M., Herskind, B., Nielsen, B. S., Sletten, G., Varmette, P. G., Törmänen, S., Hübel, H., Ma, W., Bracco, A., Camera, F., Demaria, F., Frattini, S., Million, B., Napoli, D., Maj, A., Nyakó, B. M., Joss, D. T., and Aiche, M.

Published
2000
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19. Excited Superdeformed Band in 143Eu

Author

Axelsson, A., Nyberg, J., Ataç, A., Bergström, M.H., Herskind, B., de Angelis, G., Bäck, T., Bazzacco, D., Bracco, A., Camera, F., Cederwall, B., Fahlander, C., Huijnen, J.H., Lunardi, S., Million, B., Napoli, D.R., Persson, J., Piiparinen, M., Rossi Alvarez, C., Sletten, G., Varmette, P.G., and Weiszflog, M.

Published
1999
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20. High-spin studies of164Lu using EUROBALL

Author

Törmänen, S., Hagemann, G. B., Harsmann, A., Bergström, M., Bark, R. A., Herskind, B., Sletten, G., Ødegård, S. W., Tjøm, P. O., Görgen, A., Hübel, H., Aengenvoort, B., Severen, U. J. Van, Ryde, H., Fahlander, C., Napoli, D., Lenzi, S., Petrache, C., Ur, C., Jensen, H. J., Bracco, A., Frattini, S., Chapman, R., Cullen, D. M., and King, S. L.

Published
1998
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21. Conservation of the K-quantum number in warm nuclei

Author

Bracco, A., Benzoni, G., Leoni, S., Blasi, N., Camera, F., Grassi, C., Million, B., Paleni, A., Pignanelli, M., Vigezzi, E., Wieland, O., Matsuo, M., Døssing, T., Herskind, B., Hagemann, G.B., Wilson, J., Maj, A., Kmiecik, M., Lo Bianco, G., Petrache, C.M., Castoldi, M., Zucchiati, A., DeAngelis, G., Napoli, D., Curien, D., and Bednarczyk, P.

Published
2005
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29. Coexisting normal and triaxial superdeformed structures in 165Lu

Author

Schönwaßer, G., Nenoff, N., Hübel, H., Hagemann, G.B., Bednarczyk, P., Benzoni, G., Bracco, A., Bringel, P., Chapman, R., Curien, D., Domscheit, J., Herskind, B., Jensen, D.R., Leoni, S., Lo Bianco, G., Ma, W.C., Maj, A., Neußer, A., Ødegård, S.W., Petrache, C.M., Roßbach, D., Ryde, H., Singh, A.K., and Spohr, K.H.

Published
2004
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30. Evidence for the Jacobi shape transition in hot 46Ti

Author

Maj, A., Kmiecik, M., Bracco, A., Camera, F., Bednarczyk, P., Herskind, B., Brambilla, S., Benzoni, G., Brekiesz, M., Curien, D., De Angelis, G., Farnea, E., Grębosz, J., Kicin´ska-Habior, M., Leoni, S., Męczyn´ski, W., Million, B., Napoli, D.R., Nyberg, J., Petrache, C.M., Styczen´, J., Wieland, O., Zięblin´ski, M., Zuber, K., Dubray, N., Dudek, J., and Pomorski, K.

Published
2004
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33. High Spin Structure in 123Xe

Author

Schmidt, A., Schneider, I., Meise, H., Wiedenhöver, I., Stuch, O., Jessen, K., Weisshaar, D., Schumacher, C., von Brentano, P., Sletten, G., Herskind, B., Bergström, M., and Wrzesinski, J.

Published
1998
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35. Search for collective and non-collective band structures in $^{123}$Xe

Author

Basu, Anwesha, Singh, A.K., Hagemann, G.B., Sletten, G., Herskind, B., Døssing, T., Nag, Somnath, Ragnarsson, I., Hübel, H., Bürger, A., Chmel, S., Wilson, A.N., Rogers, J., Carpenter, M.P., Janssens, R.V. F., Khoo, T.L., Kondev, F.G., Lauritsen, T., Zhu, S., Korichi, A., Fallon, P., Nyakó, B.M., Timár, J., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and HEP, INSPIRE

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract

The nuclei in the mass region A ≃125 lie between the spherical Sn nuclei(Z=50) and strongly deformed Ce nuclei(Z=58) and are therefore, transitional with respect to their shapes at low and high angular momenta. In this mass region, there exists a unique parity intruder orbital h11/2 which is accessible to both the protons and neutrons. These h11/2 nucleons have opposite deformation driving effects; neutrons drive the nucleus towards the oblate shape whereas the protons favour the prolate shape. Thus, the outcome of this interplay makes this region very interesting to study shape evolutions from lower to higher spins as the nucleus can have a prolate, an oblate or a triaxial shape depending on the alignment of the h11/2 nucleons[1].

Published
2017

36. Superdeformation in142Eu

Author

Ataç, A., Petzold, S., Nyberg, J., Piiparinen, M., Alvarez, C. Rossi, de Angelis, G., de Acuna, D., Bark, R. A., Bazzacco, D., Bianco, G. Lo, Burch, R., Buscemi, A., Herskind, B., Leoni, S., Lunardi, S., Maron, G., Million, B., Napoli, D., de Poli, M., Rico, X., Sletten, G., and Vedovato, G.

Published
1994
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40. First observation of excited structures in neutron deficient, odd-mass Pt, Au and Hg nuclei

Author

Kondev, F.G., Carpenter, M.P., Janssens, R.V.F., Abu Saleem, K., Ahmad, I., Alcorta, M., Amro, H., Caggiano, J., Cizewski, J.A., Danchev, M., Davids, C.N., Hartley, D.J., Heinz, A., Herskind, B., Kaye, R.A., Khoo, T.L., Lauritsen, T., Lister, C.J., Ma, W.C., Poli, G.L., Ressler, J., Reviol, W., Riedinger, L.L., Seweryniak, D., Siem, S., Smith, M.B., Sonzogni, A.A., Varmette, P.G., and Wiedenhöver, I.

Published
2001
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43. The TMR network project “Development of γ-ray tracking detectors”

Author

Lieder, R.M., Gast, W., Jäger, H.M., Mihailescu, L., Rossewij, M., Eberth, J., Pascovici, G., Thomas, H.G., Weisshaar, D., Beck, F., Curien, D., Duchêne, G., Pachoud, E., Piqueras, I., Rossi Alvarez, C., Bazzacco, D., Bellato, M., Kroell, Th., Manea, Ch., Quintana, B., Venturelli, R., Napoli, D.R., Rosso, D., Spolaore, P., Geraci, A., Pullia, A., Ripamonti, G., Camera, F., Million, B., Wieland, O., Lisle, J., Smith, A.G., Well, R., Nolan, P., Boston, A., Cullen, D., Descovich, M., Enqvist, T., Cederwall, B., Ideguchi, E., van der Marel, J., Nyberg, J., Herskind, B., Sletten, G., Wilson, J., Henck, R., Gutknecht, D., and Jääskeläinen, K.

Published
2001
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44. Structure of the neutron mid-shell nuclei 111,11347Ag64,66

Author

Lalkovski, S., Stefanova, E.A., Kisyov, S., Korichi, A., Bazzacco, D., Bergstrom, M., Gorgen, A., Herskind, B., Hubel, H., Jansen, A., Khoo, T.L., Kutsarova, T., Lopez-Martens, A., Minkova, A., Podolyak, Zsolt, Schonwasser, G., and Yordanov, O.

Subjects
Condensed Matter::Quantum Gases, Nuclear Theory, Nuclear Experiment
Abstract

111Ag and 113Ag were produced in induced fission reaction, where yrast and near-yrast states were populated. To interpret the new data the Interacting Boson-Fermion model was used. A good agreement with the experimental data is achieved, suggesting that the two Ag nuclei have a well developed collectivity, superimposed on \pi g9/2-3 excitations previously observed throughout the entire isotopic chain.

Published
2017

48. Search for the Jacobi shape transition in light nuclei

Author

Maj, A., Kmiecik, M., Brekiesz, M., Grebosz, J., Meczyński, W., Styczeń, J., Ziebliński, M., Zuber, K., Bracco, A., Camera, F., Benzoni, G., Million, B., Blasi, N., Brambilla, S., Leoni, S., Pignanelli, M., Wieland, O., Herskind, B., Bednarczyk, P., Curien, D., Vivien, J. P., Farnea, E., De Angelis, G., Napoli, D. R., Nyberg, J., Kicińska-Habior, M., Petrache, C. M., Dudek, J., and Pomorski, K.

Published
2003
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49. Triaxial superdeformation in 163Lu

Author

Domscheit, J., Törmänen, S., Aengenvoort, B., Hübel, H., Bark, R.A., Bergström, M., Bracco, A., Chapman, R., Cullen, D.M., Fahlander, C., Frattini, S., Görgen, A., Hagemann, G.B., Harsmann, A., Herskind, B., Jensen, H.J., King, S.L., Lenzi, S., Napoli, D., Ødegård, S.W., Petrache, C.M., Ryde, H., van Severen, U.J., Sletten, G., Tjøm, P.O., and Ur, C.

Published
1999
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