Spectroscopy of the neutron-rich actinide nucleus 240U following multinucleon-transfer reactions

被引：12

作者：

Birkenbach, B. ^{[1
]}

Vogt, A. ^{[1
]}

Geibel, K. ^{[1
]}

Recchia, F. ^{[2
,3
]}

Reiter, P. ^{[1
]}

Valiente-Dobon, J. J. ^{[4
]}

Bazzacco, D. ^{[3
]}

Bowry, M. ^{[5
]}

Bracco, A. ^{[6
,7
]}

Bruyneel, B. ^{[8
]}

Corradi, L. ^{[4
]}

Crespi, F. C. L. ^{[6
,7
]}

de Angelis, G. ^{[4
]}

Desesquelles, P. ^{[9
,10
]}

Eberth, J. ^{[1
]}

Farnea, E. ^{[3
]}

Fioretto, E. ^{[4
]}

Gadea, A. ^{[11
]}

Gengelbach, A. ^{[12
]}

Giaz, A. ^{[6
,7
]}

Gorgen, A. ^{[13
,14
]}

Gottardo, A. ^{[4
]}

Grebosz, J. ^{[15
]}

Hess, H. ^{[1
]}

John, P. R. ^{[2
,3
]}

Jolie, J. ^{[1
]}

Judson, D. S. ^{[16
]}

Jungclaus, A. ^{[17
]}

Korten, W. ^{[14
]}

Lenzi, S. ^{[2
]}

Leoni, S. ^{[6
,7
]}

Lunardi, S. ^{[2
,3
]}

Menegazzo, R. ^{[3
]}

Mengoni, D. ^{[2
,3
,18
]}

Michelagnoli, C. ^{[2
,3
]}

Mijatovic, T. ^{[19
]}

Montagnoli, G. ^{[2
,3
]}

Montanari, D. ^{[2
,3
]}

Napoli, D. ^{[4
]}

Pellegri, L. ^{[6
,7
]}

Pollarolo, G. ^{[20
,21
]}

Pullia, A. ^{[6
,7
]}

Quintana, B. ^{[22
]}

Radeck, F. ^{[1
]}

Rosso, D. ^{[4
]}

Sahin, E. ^{[4
]}

Salsac, M. D. ^{[14
]}

Scarlassara, F. ^{[2
,3
]}

Soderstrom, P. -A. ^{[23
]}

Stefanini, A. M. ^{[4
]}

机构：

[1] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[2] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy

[3] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[4] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy

[5] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[6] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[7] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[8] CEA Saclay, Serv Phys Nucl, F-91191 Gif Sur Yvette, France

[9] CNRS IN2P3, CSNSM, F-91405 Orsay, France

[10] Univ Paris 11, F-91405 Orsay, France

[11] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain

[12] Uppsala Univ, Dept Phys & Astron, SE-75121 Uppsala, Sweden

[13] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

[14] Ctr CEA Saclay, CEA, DSM, IRFU, F-91191 Gif Sur Yvette, France

[15] Henryk Niewodniczanski Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[16] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[17] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

[18] Univ West Scotland, Nucl Phys Res Grp, Paisley PA1 2BE, Renfrew, Scotland

[19] Rudjer Boskovic Inst, HR-10002 Zagreb, Croatia

[20] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy

[21] Ist Nazl Fis Nucl, I-10125 Turin, Italy

[22] Univ Salamanca, Lab Radiaciones Ionizantes, E-37008 Salamanca, Spain

[23] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[24] Univ Lyon 1, CNRS, IN2P3, UMR5822,IPNL, F-69622 Villeurbanne, France

来源：

PHYSICAL REVIEW C | 2015年 / 92卷 / 04期

关键词：

OCTUPOLE; DEFORMATION; ISOTOPES; PARITY; SPINS; BAND;

D O I：

10.1103/PhysRevC.92.044319

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Background: Nuclear structure information for the neutron-rich actinide nuclei is important since it is the benchmark for theoretical models that provide predictions for the heaviest nuclei. Purpose: gamma-ray spectroscopy of neutron-rich heavy nuclei in the actinide region. Method: Multinucleon-transfer reactions in Zn-70 + U-238 and Xe-136 + U-238 have been measured in two experiments performed at the INFN Legnaro, Italy. In the Zn-70 experiment the high-resolution HPGe Clover Array (CLARA) coupled to the magnetic spectrometer PRISMA was employed. In the Xe-136 experiment the high-resolution Advanced Gamma Tracking Array (AGATA) was used in combination with PRISMA and the Detector Array for Multinucleon Transfer Ejectiles (DANTE). Results: The ground-state band (g.s. band) of U-240 was measured up to the 20(+) level and a tentative assignment was made up to the (24(+)) level. Results from gamma gamma coincidence and from particle coincidence analyses are shown. Moments of inertia (MoI) show a clear upbend. Evidence for an extended first negative-parity band of U-240 is found. Conclusions: A detailed comparison with latest calculations shows best agreement with cranked relativistic Hartree-Bogoliubov (CRHB) calculations for the g.s. band properties. The negative-parity band shows the characteristics of a K-pi = 0 band based on an octupole vibration.

引用

页数：9

共 34 条

[1] Microscopic description of rotation: from ground states to the extremes of ultra-high spin [J].

Afanasjev, A. V. .

PHYSICA SCRIPTA, 2014, 89 (05)

[2] Pairing and rotational properties of actinides and superheavy nuclei in covariant density functional theory [J].

Afanasjev, A. V. ;

Abdurazakov, O. .

PHYSICAL REVIEW C, 2013, 88 (01)

[3] AGATA-Advanced GAmma Tracking Array [J].

Akkoyun, S. ;

Algora, A. ;

Alikhani, B. ;

Ameil, F. ;

de Angelis, G. ;

Arnold, L. ;

Astier, A. ;

Atac, A. ;

Aubert, Y. ;

Aufranc, C. ;

Austin, A. ;

Aydin, S. ;

Azaiez, F. ;

Badoer, S. ;

Balabanski, D. L. ;

Barrientos, D. ;

Baulieu, G. ;

Baumann, R. ;

Bazzacco, D. ;

Beck, F. A. ;

Beck, T. ;

Bednarczyk, P. ;

Bellato, M. ;

Bentley, M. A. ;

Benzoni, G. ;

Berthier, R. ;

Berti, L. ;

Beunard, R. ;

Lo Bianco, G. ;

Birkenbach, B. ;

Bizzeti, P. G. ;

Bizzeti-Sona, A. M. ;

Le Blanc, F. ;

Blasco, J. M. ;

Blasi, N. ;

Bloor, D. ;

Boiano, C. ;

Borsato, M. ;

Bortolato, D. ;

Boston, A. J. ;

Boston, H. C. ;

Bourgault, P. ;

Boutachkov, P. ;

Bouty, A. ;

Bracco, A. ;

Brambilla, S. ;

Brawn, I. P. ;

Brondi, A. ;

Broussard, S. ;

Bruyneel, B. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2012, 668 :26-58

[4] ENERGY-LEVELS IN EVEN ACTINIDE ISOTOPES FROM (T,P) REACTIONS [J].

BACK, BB ;

FLYNN, ER ;

HANSEN, O ;

CASTEN, RF ;

GARRETT, JD .

NUCLEAR PHYSICS A, 1973, A217 (01) :116-124

[5] LEVEL SPIN FOR SUPERDEFORMED NUCLEI NEAR A = 194 [J].

BECKER, JA ;

HENRY, EA ;

KUHNERT, A ;

WANG, TF ;

YATES, SW ;

DIAMOND, RM ;

STEPHENS, FS ;

DRAPER, JE ;

KORTEN, W ;

DELEPLANQUE, MA ;

MACCHIAVELLI, AO ;

AZAIEZ, F ;

KELLY, WH ;

CIZEWSKI, JA ;

BRINKMAN, MJ .

PHYSICAL REVIEW C, 1992, 46 (03) :889-903

[6] ALPHA DECAY HALF LIVES OF 242PU AND 244PU [J].

BEMIS, CE ;

HALPERIN, J ;

EBY, R .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1969, 31 (03) :599-&

[7]

Birkenbach B., 2014, THESIS U KOLN

[8]

Cocks JFC, 2000, J PHYS G NUCL PARTIC, V26, P23, DOI 10.1088/0954-3899/26/1/303

[9] Multinucleon transfer reactions: Present status and perspectives [J].

Corradi, L. ;

Szilner, S. ;

Pollarolo, G. ;

Montananri, D. ;

Fioretto, E. ;

Stefanini, A. M. ;

Valiente-Dobon, J. J. ;

Farnea, E. ;

Michelagnoli, C. ;

Montagnoli, G. ;

Scarlassara, F. ;

Ur, C. A. ;

Mijatovic, T. ;

Malenica, D. Jelavie ;

Soic, N. ;

Haas, F. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2013, 317 :743-751

[10] Multinucleon transfer processes in heavy-ion reactions [J].

Corradi, L. ;

Pollarolo, G. ;

Szilner, S. .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2009, 36 (11)

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