High spin states in 69167Tm98 were studied using the 164Dy(7Li, 4n gamma)167Tm fusion-evaporation reaction. The XTU Tandem accelerator at the INFN Legnaro National Laboratory was used to accelerate a beam of 7Li ions to 55 MeV, and gamma rays from the evaporation residues were studied using the GASP Ge multidetector gamma-ray array. The present data have allowed the 1/2-[541] yrast sequence of 167Tm to be established to spin 61/2-, the 1/2+[411] ground-state band to be extended to (51/2+), and the 7/2+[404] and 7/2-[523] rotational sequences to be extended to spins (43/2+) and (39/2-), respectively. The experimental data have been compared with the results of cranked shell-model calculations; for the above decay sequences, crossing frequencies are in agreement with those of the neighboring even-even isotones, within experimental errors, and there is no evidence of a configuration-dependence of band crossing frequencies. Experimental B(M1)/B(E2) values were extracted and compared with the results of theoretical calculations which are based on a semiclassical cranking model. Finally, the experimental high-spin decay sequences have been compared with the results of projected shell-model (PSM) calculations; agreement between experiment and theory is excellent over the complete range of spins. The calculated energy levels of the one-quasiparticle bands in 167Tm depend sensitively on the deformation parameters used in the PSM calculation.
Decay of the $49/{2}^{+}$, $0.51\phantom{\rule{0.28em}{0ex}}\ensuremath{\mu}\mathrm{s}$ isomeric state in $^{147}\mathrm{Gd}$ was reinvestigated in the $\ensuremath{\gamma}$-coincidence catcher experiment using the $^{76}\mathrm{Ge}(^{76}\mathrm{Ge},5n$) reaction and the GASP $\ensuremath{\gamma}$ detector array. A previously suggested extraordinary complexity of the decay was confirmed and established down to intensity level better than ${10}^{\ensuremath{-}3}$/decay, involving 400 transitions and 89 levels populated between the isomer and the $^{147}\mathrm{Gd}$ ground state. The earlier measured electron conversion coefficients (ECC) and $\ensuremath{\gamma}$ angular distributions, together with the total ECC extracted presently for low-energy transitions from the intensity balance, allowed to assign spin and parity values to all of the observed levels. Discussion of the level structure is restricted to few important cases clarified by the present investigation in the low-energy part of the decay scheme. Those involved the identification of the new $M2$ and $E2$ branches populating two new levels in the decay of the ${27/2}^{\ensuremath{-}}$ isomer and firm location of positive parity levels arising in the coupling of this isomer with the ${3}^{\ensuremath{-}}$ core excitation. In the upper part it was concluded that the observed complexity of the decay is initiated by fast low-energy $M1$ transitions populating a group of similar structure levels located within 7.8--8.0 MeV excitation energy range. Some statistical features of the observed complex isomeric decay are reviewed and discussed.
The transitional nuclei Ba-134 and Ba-133 are investigated after multinucleon transfer employing the high-resolution Advanced GAmma Tracking Array coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and after fusion-evaporation reaction at the FN tandem accelerator of the University of Cologne, Germany. The J(pi) = 19/2(+) state at 1942 keV in Ba-133 is identified as an isomer with a half-life of 66.6(20) ns corresponding to a B(E1) value of 7.7(4) x 10(-6) e(2) fm(2) for the J(pi) = 19/2(+) to J(pi) = 19/2(-) transition. The level scheme of Ba-134 above the J(pi) = 10(+) isomer is extended to approximately 6 MeV. A pronounced backbending is observed at h omega = 0.38 MeV along the positive-parity yrast band. The results are compared to the high-spin systematics of the Z = 56 isotopes. Large-scale shell-model calculations employing the GCN50:82, SN100PN, SNV, PQM130, Realistic SM, and EPQQM interactions reproduce the experimental findings and elucidate the structure of the high-spin states. The shell-model calculations employing the GCN50:82 and PQM130 interactions reproduce alignment properties and provide detailed insight into the microscopic origin of this phenomenon in transitional Ba-134.
L. Kaya,1, a A. Vogt,1 P. Reiter,1 M. Siciliano,2, 3 N. Shimizu,4 Y. Utsuno,4, 5 H.-K. Wang,6 A. Gargano,7 2 L. Coraggio,7 N. Itaco,7, 8 K. Arnswald,1 D. Bazzacco,9 B. Birkenbach,1 A. Blazhev,1 A. Bracco,10 3 B. Bruyneel,11 L. Corradi,3 F. C. L. Crespi,10 G. de Angelis,3 M. Droste,1 J. Eberth,1 E. Farnea,9, b 4 E. Fioretto,3 C. Fransen,1 A. Gadea,12 A. Giaz,10 A. Görgen,13, 14, 15 A. Gottardo,3 K. Hadyńska-Klęk,3 5 H. Hess,1 R. Hirsch,1 P. R. John,16 J. Jolie,1 A. Jungclaus,17 V. Karayonchev,1 L. Kornwebel,1 W. 6 Korten,14 S. Leoni,10 L. Lewandowski,1 S. Lunardi,2, 9 R. Menegazzo,9 D. Mengoni,2, 9 C. Michelagnoli,18 7 T. Mijatović,19 G. Montagnoli,2, 9 D. Montanari,20 C. Müller-Gatermann,1 D. Napoli,3 Zs. Podolyák,21 G. 8 Pollarolo,22 F. Recchia,2, 9 J.-M. Régis,1 N. Saed-Samii,1 E. Şahin,23 F. Scarlassara,2, 9 K. Schomacker,1 9 M. Seidlitz,1 B. Siebeck,1 P.-A. Söderström,24 A. M. Stefanini,3 O. Stezowski,25 S. Szilner,19 B. Szpak,26 10 E. Teruya,27 C. Ur,9 J. J. Valiente-Dobón,3 K. Wolf,1 K. Yanase,27 N. Yoshinaga,27 and K. O. Zell1 11
L. Kaya,1,* A. Vogt,1 P. Reiter,1 M. Siciliano,2,3,4 N. Shimizu,5 Y. Utsuno,5,6 H.-K. Wang,7 A. Gargano,8 L. Coraggio,8 N. Itaco,8,9 K. Arnswald,1 D. Bazzacco,10 B. Birkenbach,1 A. Blazhev,1 A. Bracco,11 B. Bruyneel,4 L. Corradi,3 F. C. L. Crespi,11 G. de Angelis,3 M. Droste,1 J. Eberth,1 A. Esmaylzadeh,1 E. Farnea,10,† E. Fioretto,3 C. Fransen,1 A. Gadea,12 A. Giaz,11 A. Görgen,13,4 A. Gottardo,3 K. Hadyńska-Klęk,3 H. Hess,1 R. Hirsch,1 P. R. John,14 J. Jolie,1 A. Jungclaus,15 V. Karayonchev,1 L. Kornwebel,1 W. Korten,4 S. Leoni,11 L. Lewandowski,1 S. Lunardi,2,10 R. Menegazzo,10 D. Mengoni,2,10 C. Michelagnoli,16 T. Mijatović,17 G. Montagnoli,2,10 D. Montanari,2,10 C. Müller-Gatermann,1 D. Napoli,3 Zs. Podolyák,18 G. Pollarolo,19 F. Recchia,2,10 J.-M. Régis,1 N. Saed-Samii,1 E. Şahin,13 F. Scarlassara,2,10 K. Schomacker,1 M. Seidlitz,1 B. Siebeck,1 P.-A. Söderström,20 A. M. Stefanini,3 O. Stezowski,21 S. Szilner,17 B. Szpak,22 E. Teruya,23 C. Ur,10 J. J. Valiente-Dobón,3 K. Wolf,1 K. Yanase,23 N. Yoshinaga,23 and K. O. Zell1 1Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany 2Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova, Italy 3Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy 4Institut de Recherche sur les lois Fondamentales de l’Univers – IRFU, CEA/DSM,
The high-spin structures of Ba-136 and Ba-137 are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. Ba-136 is populated in a Xe-136 + U-238 MNT reaction employing the high-resolution Advanced GAmma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and in two Be-9 + Te-130 fusion-evaporation reactions using the High-efficiency Observatory for gamma-Ray Unique Spectroscopy (HORUS) at the FN tandem accelerator of the University of Cologne, Germany. Furthermore, both isotopes are populated in an elusive reaction channel in the B-11 + Te-130 fusion-evaporation reaction utilizing the HORUS gamma-ray array. The level scheme above the J(pi) = 10(+) isomer in Ba-136 is revised and extended up to an excitation energy of approximately 5.5 MeV. From the results of angular-correlation measurements, the E-x = 3707- and E-x = 4920-keV states are identified as the bandheads of positive- and negative-parity cascades. While the high-spin regimes of both Te-132 and Xe-134 are characterized by high-energy 12(+) -> 10(+) transitions, the Ba-136 E2 ground-state band is interrupted by negative-parity states only a few hundred keV above the J(pi) = 10(+) isomer. Furthermore, spins are established for several hitherto unassigned high-spin states in Ba-137. The new results close a gap along the high-spin structure of N < 82 Ba isotopes. Experimental results are compared to large-scale shell-model calculations employing the GCN50:82, Realistic SM, PQM130, and SN100PN interactions. The calculations suggest that the bandheads of the positive-parity bands in both isotopes are predominantly of proton character.
L. Kaya,1,* A. Vogt,1 P. Reiter,1 C. Müller-Gatermann,1 A. Gargano,2 L. Coraggio,2 N. Itaco,2,3 A. Blazhev,1 K. Arnswald,1 D. Bazzacco,4 B. Birkenbach,1 A. Bracco,5 B. Bruyneel,6 L. Corradi,7 F. C. L. Crespi,5 G. de Angelis,7 M. Droste,1 J. Eberth,1 E. Farnea,4,† E. Fioretto,7 C. Fransen,1 A. Gadea,8 A. Giaz,5 A. Görgen,9,10,11 A. Gottardo,7 K. Hadyńska-Klęk,7 H. Hess,1 R. Hetzenegger,1 R. Hirsch,1 P. R. John,12 J. Jolie,1 A. Jungclaus,13 W. Korten,10 S. Leoni,5 L. Lewandowski,1 S. Lunardi,14,4 R. Menegazzo,4 D. Mengoni,14,4 C. Michelagnoli,15 T. Mijatović,16 G. Montagnoli,14,4 D. Montanari,17 D. Napoli,7 Zs. Podolyák,18 G. Pollarolo,19 F. Recchia,14,4 D. Rosiak,1 N. Saed-Samii,1 E. Şahin,9 M. Siciliano,14,7 F. Scarlassara,14,4 M. Seidlitz,1 P.-A. Söderström,20 A. M. Stefanini,7 O. Stezowski,21 S. Szilner,16 B. Szpak,22 C. Ur,4 J. J. Valiente-Dobón,7 M. Weinert,1 K. Wolf,1 and K. O. Zell1 1Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany 2Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, I-80126 Napoli, Italy 3Dipartimento di Matematica e Fisica, Università degli Studi della Campania “Luigi Vanvitelli”,
The transitional nucleus Xe-131 is investigated after multinucleon transfer in the Xe-136 + Pb-208 and Xe-136 +U-238 reactions employing the high-resolution Advanced gamma-Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction Sn-124(B-11) ,p3n)Xe-131 employing the High-efficiency Observatory for gamma-Ray Unique Spectroscopy (HORUS) gamma-ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of Xe-131 is extended to 5 MeV. A pronounced backbending is observed at (h) over bar omega approximate to 0.4 MeV along the negative-parity one-quasiparticle vh(11/12)(alpha = -1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in Xe129-132 provide insight into the changing nuclear structure along the Xe chain towards the N = 82 shell closure. Proton occupancy in the pi 0h(11/2) orbital is found to be decisive for the description of the observed backbending phenomenon.
L. Kaya,1, a A. Vogt,1 P. Reiter,1 C. Müller-Gatermann,1 M. Siciliano,2, 3 L. Coraggio,4 N. Itaco,4, 5 A. Gargano,4 K. 2 Arnswald,1 D. Bazzacco,6 B. Birkenbach,1 A. Blazhev,1 A. Bracco,7 B. Bruyneel,8 L. Corradi,3 F. C. L. Crespi,7 G. 3 de Angelis,3 M. Droste,1 J. Eberth,1 E. Farnea,6, b E. Fioretto,3 C. Fransen,1 A. Gadea,9 A. Giaz,7 A. Görgen,10, 11, 12 4 A. Gottardo,3 K. Hadyńska-Klęk,3 H. Hess,1 R. Hetzenegger,1 R. Hirsch,1 P. R. John,13 J. Jolie,1 A. Jungclaus,14 5 W. Korten,11 S. Leoni,7 L. Lewandowski,1 S. Lunardi,2, 6 R. Menegazzo,6 D. Mengoni,15, 2, 6 C. Michelagnoli,16 T. 6 Mijatović,17 G. Montagnoli,2, 6 D. Montanari,18 D. Napoli,3 Zs. Podolyák,19 G. Pollarolo,20 F. Recchia,2, 6 D. 7 Rosiak,1 N. Saed-Samii,1 E. Şahin,21 F. Scarlassara,2, 6 M. Seidlitz,1 P.-A. Söderström,13 A. M. Stefanini,3 O. 8 Stezowski,22 S. Szilner,17 B. Szpak,23 C. Ur,6 J. J. Valiente-Dobón,3 M. Weinert,1 K. Wolf,1 and K. O. Zell1 9
L. Kaya,1, a A. Vogt,1 P. Reiter,1 C. Müller-Gatermann,1 A. Gargano,2 L. Coraggio,2 N. Itaco,2, 3 A. 2 Blazhev,1 K. Arnswald,1 D. Bazzacco,4 B. Birkenbach,1 A. Bracco,5 B. Bruyneel,6 L. Corradi,7 F. C. L. 3 Crespi,5 G. de Angelis,7 M. Droste,1 J. Eberth,1 E. Farnea,4, b E. Fioretto,7 C. Fransen,1 A. Gadea,8 A. 4 Giaz,5 A. Görgen,9, 10, 11 A. Gottardo,7 K. Hadyńska-Klęk,7 H. Hess,1 R. Hetzenegger,1 R. Hirsch,1 P. 5 R. John,12 J. Jolie,1 A. Jungclaus,13 W. Korten,10 S. Leoni,5 L. Lewandowski,1 S. Lunardi,14, 4 R. 6 Menegazzo,4 D. Mengoni,14, 4 C. Michelagnoli,15 T. Mijatović,16 G. Montagnoli,14, 4 D. Montanari,17 D. 7 Napoli,7 Zs. Podolyák,18 G. Pollarolo,19 F. Recchia,14, 4 D. Rosiak,1 N. Saed-Samii,1 E. Şahin,20 M. 8 Siciliano,14, 7 F. Scarlassara,14, 4 M. Seidlitz,1 P.-A. Söderström,21 A. M. Stefanini,7 O. Stezowski,22 9 S. Szilner,16 B. Szpak,23 C. Ur,4 J. J. Valiente-Dobón,7 M. Weinert,1 K. Wolf,1 and K. O. Zell1 10
K. Hadyńska-Klȩk,1,2,3,4,5,* P. J. Napiorkowski,1 M. Zielińska,1,6 J. Srebrny,1 A. Maj,7 F. Azaiez,8 J. J. Valiente Dobón,4 M. Kicińska-Habior,2 F. Nowacki,9 H. Naïdja,9,10,11 B. Bounthong,9 T. R. Rodríguez,12 G. de Angelis,4 T. Abraham,1 G. Anil Kumar,7 D. Bazzacco,13,14 M. Bellato,13 D. Bortolato,13 P. Bednarczyk,7 G. Benzoni,15 L. Berti,4 B. Birkenbach,16 B. Bruyneel,16 S. Brambilla,15 F. Camera,15,17 J. Chavas,6 B. Cederwall,18 L. Charles,9 M. Ciemała,7 P. Cocconi,4 P. Coleman-Smith,19 A. Colombo,13 A. Corsi,15,17 F. C. L. Crespi,15,17 D. M. Cullen,20 A. Czermak,7 P. Désesquelles,21,22 D. T. Doherty,5,6,23 B. Dulny,7 J. Eberth,16 E. Farnea,13,14 B. Fornal,7 S. Franchoo,8 A. Gadea,24 A. Giaz,15,17 A. Gottardo,4 X. Grave,8 J. Grȩbosz,7 A. Görgen,3 M. Gulmini,4 T. Habermann,10 H. Hess,16 R. Isocrate,13,14 J. Iwanicki,1 G. Jaworski,1 D. S. Judson,25 A. Jungclaus,26 N. Karkour,22 M. Kmiecik,7 D. Karpiński,2 M. Kisieliński,1 N. Kondratyev,27 A. Korichi,22 M. Komorowska,1,2 M. Kowalczyk,1 W. Korten,6 M. Krzysiek,7,28 G. Lehaut,29 S. Leoni,15,17 J. Ljungvall,22 A. Lopez-Martens,22 S. Lunardi,13,14 G. Maron,4 K. Mazurek,7 R. Menegazzo,13,14 D. Mengoni,13 E. Merchán,10,30 W. Mȩczyński,7 C. Michelagnoli,13,14 B. Million,15 S. Myalski,7 D. R. Napoli,4 M. Niikura,8 A. Obertelli,6 S. F. Özmen,1 M. Palacz,1 L. Próchniak,1 A. Pullia,15,17 B. Quintana,31 G. Rampazzo,4 F. Recchia,13,14 N. Redon,29 P. Reiter,16 D. Rosso,4 K. Rusek,1 E. Sahin,4 M.-D. Salsac,6 P.-A. Söderström,32 I. Stefan,8 O. Stézowski,29 J. Styczeń,7 Ch. Theisen,6 N. Toniolo,4 C. A. Ur,13,14 R. Wadsworth,23 B. Wasilewska,7 A. Wiens,16 J. L. Wood,33 K. Wrzosek-Lipska,1 and M. Ziȩbliński7 1Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, PL 02-093 Warsaw, Poland 2Faculty of Physics, University of Warsaw, PL 00-681 Warsaw, Poland 3Department of Physics, University of Oslo, N-0316 Oslo, Norway 4INFN Laboratori Nazionali di Legnaro, Viale dell’Università, 2, I-35020 Legnaro, Italy 5Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom 6Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France 7Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Kraków, Poland 8Institut de Physique Nucléaire d’Orsay, F-91400 Orsay, France 9Université de Strasbourg, IPHC/CNRS, UMR7178, 23 rue du Loess, F-67037 Strasbourg, France 10GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany 11LPMS, Université Constantine 1, Route Ain-El bey, 25000 Constantine, Algeria 12Universidad Autónoma de Madrid, Departamento de Física Teórica, Madrid, Spain 13INFN Sezione di Padova, I-35131 Padova, Italy 14Dipartimento di Fisica e Astronomia dell’Università degli Studi di Padova, I-35131 Padova, Italy 15INFN Sezione di Milano, I-20133 Milano, Italy 16Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany 17Dipartimento di Fisica dell’Università degli Studi di Milano, I-20133 Milano, Italy 18Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden 19Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom 20Schuster Laboratory, School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom 21Université Paris-Sud, F-91400 Orsay, France 22Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM/IN2P3/CNRS), F-91405 Orsay, France 23Department of Physics University of York, Heslington, York, YO10 5DD, United Kingdom 24Instituto de Física Corpuscular IFIC, CSIC-University of Valencia, S-46980 Paterna, Valencia, Spain 25Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom 26Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain 27Flerov Laboratory of Nuclear Reactions JINR, RU-141980 Dubna, Russia 28ELI-NP, Horia Hulubei National Institute of Physics and Nuclear Engineering, 077125 Magurele, Romania 29Universite Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France 30Technische Universität Darmstadt, D-64289 Darmstadt, Germany 31Laboratorio de Radiaciones Ionizantes, Departamento de Física Fundamental, Universidad de Salamanca, Salamanca, Spain 32Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden 33School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
L. Kaya,1, a A. Vogt,1 P. Reiter,1 C. Müller-Gatermann,1 A. Gargano,2 L. Coraggio,2 N. Itaco,2, 3 A. 2 Blazhev,1 K. Arnswald,1 D. Bazzacco,4 B. Birkenbach,1 A. Bracco,5 B. Bruyneel,6 L. Corradi,7 F. C. L. 3 Crespi,5 G. de Angelis,7 M. Droste,1 J. Eberth,1 E. Farnea,4, b E. Fioretto,7 C. Fransen,1 A. Gadea,8 A. 4 Giaz,5 A. Görgen,9, 10, 11 A. Gottardo,7 K. Hadyńska-Klęk,7 H. Hess,1 R. Hetzenegger,1 R. Hirsch,1 P. 5 R. John,12 J. Jolie,1 A. Jungclaus,13 W. Korten,10 S. Leoni,5 L. Lewandowski,1 S. Lunardi,14, 4 R. 6 Menegazzo,4 D. Mengoni,14, 4 C. Michelagnoli,15 T. Mijatović,16 G. Montagnoli,14, 4 D. Montanari,17 D. 7 Napoli,7 Zs. Podolyák,18 G. Pollarolo,19 F. Recchia,14, 4 D. Rosiak,1 N. Saed-Samii,1 E. Şahin,20 M. 8 Siciliano,14, 7 F. Scarlassara,14, 4 M. Seidlitz,1 P.-A. Söderström,21 A. M. Stefanini,7 O. Stezowski,22 9 S. Szilner,16 B. Szpak,23 C. Ur,4 J. J. Valiente-Dobón,7 M. Weinert,1 K. Wolf,1 and K. O. Zell1 10
Detailed information on isomeric states in A approximate to 135 nuclei is exploited to shell-model calculations in the region northwest of doubly magic nucleus Sn-132. The N = 79 isotones Xe-133 and Ba-135 are studied after multinucleon transfer in the Xe-136 + Pb-208 reaction employing the high-resolution Advanced GAmma Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy and in a pulsed-beam experiment at the FN tandem accelerator of the University of Cologne Germany utilizing a Be-9 + Te-130 fusion-evaporation reaction at a beam energy of 40 MeV. Isomeric states are identified via delayed gamma-ray spectroscopy. Hitherto tentative excitation energy spin and parity assignments of the 2017-keV J(pi) = 23/2(+) isomer in Xe-133 are confirmed and a half-life of T-1/2 = 8.64(13) ms is measured. The 2388-keV state in Ba-135. is identified as a J(pi) = 23/2(+) isomer with a half-life of 1.06(4) ms. The new results show a smooth onset of isomeric J(pi) = 23/2(+) states along the N = 79 isotones and close a gap in the high-spin systematics towards the recently investigated J(pi) = 23/2(+) isomer in Nd-139. The resulting systematics of M2 reduced transition probabilities is discussed within the of the nuclear shell model. Latest large-scale shell-model calculations employing the SN100PN, GCN50:82, SN100-KTH and a realistic effective interaction reproduce the experimental findings generally well and give insight into the structure of the isomers.
L. Kaya,1, a A. Vogt,1 P. Reiter,1 M. Siciliano,2, 3 B. Birkenbach,1 A. Blazhev,1 L. Coraggio,4 E. Teruya,5 N. 3 Yoshinaga,5 K. Higashiyama,6 K. Arnswald,1 D. Bazzacco,7 A. Bracco,8 B. Bruyneel,9 L. Corradi,3 F. C. L. Crespi,8 4 G. de Angelis,3 J. Eberth,1 E. Farnea,7, b E. Fioretto,3 C. Fransen,1 B. Fu,1 A. Gadea,10 A. Gargano,4 A. Giaz,8 A. 5 Görgen,11, 12, 13 A. Gottardo,3 K. Hadyńska-Klęk,3 H. Hess,1 R. Hetzenegger,1 R. Hirsch,1 N. Itaco,4, 14 P. R. John,15 6 J. Jolie,1 A. Jungclaus,16 W. Korten,17 S. Leoni,8 L. Lewandowski,1 S. Lunardi,2, 7 R. Menegazzo,7 D. Mengoni,18, 2, 7 7 C. Michelagnoli,19 T. Mijatović,20 G. Montagnoli,2, 7 D. Montanari,2, 7 C. Müller-Gatermann,1 D. Napoli,3 Zs. 8 Podolyák,21 G. Pollarolo,22 A. Pullia,8 M. Queiser,1 F. Recchia,2, 7 D. Rosiak,1 N. Saed-Samii,1 E. Şahin,23 F. 9 Scarlassara,2, 7 D. Schneiders,1 M. Seidlitz,1 B. Siebeck,1 J. F. Smith,24 P.-A. Söderström,25 A. M. Stefanini,3 T. 10 Steinbach,1 O. Stezowski,26 S. Szilner,20 B. Szpak,27 C. Ur,7 J. J. Valiente-Dobón,3 K. Wolf,1 and K. O. Zell1 11
Kaya, L.; Vogt, A.; Reiter, P.; Siciliano, M.; Birkenbach, B.; Blazhev, A.; Coraggio, L.; Teruya, E.; Yoshinaga, N.; Higashiyama, K.; Arnswald, K.; Bazzacco, D.; Bracco, A.; Bruyneel, B.; Corradi, L.; Crespi, F.C.L.; de Angelis, G.; Eberth, J.; Farnea, E.; Fioretto, E.; Fransen, C.; Fu, B.; Gadea, A.; Gargano, A.; Giaz, A.; Görgen, A.; Gottardo, A.; Hadyska-Klk, K.; Hess, H.; Hetzenegger, R.; Hirsch, R.; Itaco, N.; John, P.R.; Jolie, J.; Jungclaus, A.; Korten, W.; Leoni, S.; Lewandowski, L.; Lunardi, S.; Menegazzo, R.; Mengoni, D.; Michelagnoli, C.; Mijatovi, T. ; Montagnoli, G.; Montanari, D.; Müller-Gatermann, C.; Napoli, D.; Podolyák, Zs.; Pollarolo, G.; Pullia, A.; Queiser, M.; Recchia, F.; Rosiak, D.; Saed-Samii, N.; ahin, E.; Scarlassara, F.; Schneiders, D.; Seidlitz, M.; Siebeck, B.; Smith, J.F. ; Söderström, P.-A.; Stefanini, A.M.; Steinbach, T.; Stezowski, O.; Szilner, S.; Szpak, B.; Ur, C.; Valiente-Dobón, J.J.; Wolf, K.; Zell, K.O.
A.K. Mondal, S. Mukhopadhyay, A. Chakraborty2,∗ D.C. Biswas, L.S. Danu, A. Blanc, G. de France, M. Jentschel, U. Köster, S. Leoni, P. Mutti, G. Simpson, T. Soldner, C. A. Ur, and W. Urban Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085 Department of Physics, Siksha Bhavana, Visva-Bharati, Santiniketan 731 235 ILL, 71 Avenue des Martyrs, 38042 Grenoble CEDEX 9, France GANIL, BP 55027, F-14076 Caen Cedex 5, France Università degli Studi di Milano, I-20133 Milano, Italy LPSC, 53 Avenue des Martyrs, 38026 Grenoble, France INFN Sezione di Padova, I-35131 Padova, Italy and Faculty of Physics, University of Warsaw, PL 02-093 Warszawa, Poland
Regis, J. -M.; Jolie, J; Saed-Samii, N.; Warr, N.; Pfeiffer, M.; Blanc, A.; Jentschel, M.; Koester, U.; Mutti, P.; Soldner, T.; Simpson, G.S.; Drouet, F.; Vancraeyenest, A.; de France, G.; Clement, Emanuelle; Stezowski, O.; Ur, C.; Urban, W.; Regan, P. H.; Podolyak, Zs.; Larijarni, C.; Townsley, C.; Carroll, Robert; Wilson, E.; Fraile, L.M.; Mach, H.; Paziy, V.; Olaizola, B.; Vedia, V.; Bruce, A.; Roberts, O. J.; Smith, J. F. ; Scheck, Marcus; Kroell, T.; Hartig, Anna-Lena; Ignatov, A.; Ilieva, S.; Lalkovski, S.; Korten, W.; Marginean, N.; Otsuka, T.; Tsunoda, Y.
Citation for published version (APA): Vogt, A., Siciliano, M., Birkenbach, B., Reiter, P., Hadynska-Klek, K., Wheldon, C., Valiente Dobon, JJ., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Blazhev, A., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Crespi, F. C. L., ... Zell, K. O. (2017). High-spin structures in 132 Xe and 133 Xe and evidence for isomers along the N = 79 isotones. Physical Review C (Nuclear Physics), 96, [024321]. https://doi.org/10.1103/PhysRevC.96.024321