Ground-state configuration of neutron-rich 35Al via Coulomb breakup

被引：4

作者：

Chakraborty, S. ^{[1
]}

Datta, Ushasi ^{[1
,2
]}

Aumann, T. ^{[2
,3
]}

Beceiro-Novo, S. ^{[4
]}

Boretzky, K. ^{[2
]}

Caesar, C. ^{[2
]}

Carlson, B. V. ^{[5
]}

Catford, W. N. ^{[6
]}

Chartier, M. ^{[7
]}

Cortina-Gil, D. ^{[4
]}

De Angelis, G. ^{[8
]}

Fernandez, P. Diaz ^{[4
,9
]}

Emling, H. ^{[2
]}

Ershova, O. ^{[2
]}

Fraile, L. M. ^{[10
]}

Geissel, H. ^{[2
,11
]}

Gonzalez-Diaz, D. ^{[2
]}

Johansson, H. ^{[9
]}

Jonson, B. ^{[9
]}

Kalantar-Nayestanaki, N. ^{[12
]}

Kroell, T. ^{[3
]}

Kruecken, R. ^{[13
]}

Langer, C.

Le Bleis, T. ^{[13
]}

Leifels, Y. ^{[2
]}

Marganiec, J. ^{[2
]}

Munzenberg, G. ^{[2
]}

Najafi, M. A. ^{[12
]}

Nilsson, T. ^{[9
]}

Nociforo, C. ^{[2
]}

Panin, V. ^{[2
]}

Plag, R. ^{[2
]}

Rahaman, A. ^{[1
]}

Reifarth, R. ^{[2
]}

Ricciardi, M. V. ^{[2
]}

Rigollet, C. ^{[12
]}

Rossi, D. ^{[2
]}

Scheidenberger, C. ^{[2
]}

Scheit, H. ^{[3
]}

Simon, H. ^{[2
]}

Taylor, J. T. ^{[9
]}

Togano, Y. ^{[2
]}

Typel, S. ^{[2
]}

Utsuno, Y. ^{[14
]}

Wagner, A. ^{[15
]}

Wamers, F. ^{[2
]}

Weick, H. ^{[2
]}

Winfield, J. S. ^{[2
]}

机构：

[1] Saha Inst Nucl Phys, Kolkata 700064, India

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[3] Tech Univ Darmstadt, D-64289 Darmstadt, Germany

[4] Univ Santiago de Compostela, Santiago De Compostela 15706, Spain

[5] Inst Tecnol Aeronaut CTA, BR-12228900 Sao Jose Dos Campos, Brazil

[6] Univ Surrey, Guildford GU2 5XH, Surrey, England

[7] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[8] INFN, Lab Naz Legnaro, Via Romea 4, I-35020 Legnaro, Italy

[9] Chalmers Tek Hogskola, Fundamental Fys, S-41296 Gothenburg, Sweden

[10] Univ Complutense Madrid, CEI Moncloa, E-28040 Madrid, Spain

[11] II Phys Inst, D-35392 Giessen, Germany

[12] Univ Groningen, KVI CART, NL-9747AA Groningen, Netherlands

[13] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany

[14] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[15] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany

来源：

PHYSICAL REVIEW C | 2017年 / 96卷 / 03期

关键词：

N=20 SHELL CLOSURE; MASS MEASUREMENTS; NUCLEI; ISOTOPES; EXCITATION; COLLISIONS; INVERSION; EMISSION; ISLAND; IONS;

D O I：

10.1103/PhysRevC.96.034301

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：

The ground-state configuration of Al-35 has been studied via Coulomb dissociation (CD) using the LAND-FRS setup (GSI, Darmstadt) at a relativistic energy of similar to 403 MeV/nucleon. The measured inclusive differential CD cross section for Al-35, integrated up to 5.0 MeV relative energy between the Al-34 core and the neutron using a Pb target, is 78(13) mb. The exclusive measured CD cross section that populates various excited states of 34Al is 29(7) mb. The differential CD cross section of Al-35 -> Al-34 + n has been interpreted in the light of a direct breakup model, and it suggests that the possible ground-state spin and parity of Al-35 could be, tentatively, 1/2+ or 3/2(+) or 5/2(+). The valence neutrons, in the ground state of Al-35, may occupy a combination of either l = 3,0 or l = 1,2 orbitals coupled with the Al-34 core in the ground and isomeric state(s), respectively. This hints of a particle-hole configuration of the neutron across the magic shell gaps at N = 20,28 which suggests narrowing the magic shell gap. If the 5/2+ is the ground-state spin-parity of Al-35 as suggested in the literature, then the major ground-state configuration of Al-35 is a combination of Al-34(g. s.; 4(-)) circle times upsilon(p3/2) and Al-34(isomer; 1(+)) circle times upsilon(d3/2) states. The result from this experiment has been compared with that from a previous knockout measurement and a calculation using the SDPF-M interaction.

引用

页数：9

共 50 条

[1] Ground-state configuration of neutron-rich Aluminum isotopes through Coulomb Breakup
Chakraborty, S.
Pramanik, U. Datta
Aumann, T.
Beceiro, S.
Boretzky, K.
Caesar, C.
Carlson, B. V.
Catford, W. N.
Chatterjee, S.
Chartier, M.
Cortina-Gil, D.
De Angelis, G.
Gonzalez-Diaz, D.
Emling, H.
Diaz Fernandez, P.
Fraile, L. M.
Ershova, O.
Geissel, H.
Heil, M.
Jonson, B.
Kelic, A.
Johansson, H.
Kruecken, R.
Kroll, T.
Kurcewicz, J.
Langer, C.
Le Bleis, T.
Leifels, Y.
Munzenberg, G.
Marganiec, J.
Nociforo, C.
Najafi, A.
Panin, V.
Paschalis, S.
Pietri, S.
Plag, R.
Rahaman, A.
Reifarth, R.
Ricciardi, V.
Rossi, D.
Ray, J.
Simon, H.
Scheidenberger, C.
Typel, S.
Taylor, J.
Togano, Y.
Volkov, V.
Weick, H.
Wagner, A.
Wamers, F.
INPC 2013 - INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, VOL. 1, 2014, 66
[2] Ground-state configuration of the neutron-rich 11Be and 17,19,21,23O nuclei studied by Coulomb breakup
Palit, R
Aumann, T
Boretzky, K
Carlson, BV
Cortina, D
Pramanik, UD
Elze, TW
Emling, H
Geissel, H
Grünschloss, A
Hellström, M
Ilievski, S
Iwasa, N
Jones, KL
Khiem, LH
Kratz, JV
Kulessa, R
Leifels, Y
Leistenschneider, A
Lubkiewicz, E
Münzenberg, C
Nociforo, C
Reiter, P
Scheidenberger, C
Simon, H
Sümmerer, K
Wajda, E
Walus, W
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE FISSION AND PROPERTIES OF NEUTRON-RICH NUCLEI, 2003, : 87 - 92
[3] Coulomb breakup of neutron-rich oxygen isotopes
Nociforo, C
Palit, R
Adrich, P
Aumann, T
Boretzky, K
Cortina-Gil, D
Pramanik, UD
Elze, TW
Emling, H
Geissel, H
Hellström, M
Iwasa, N
Jones, KL
Kratz, JV
Kulessa, R
Khiem, LH
Leistenschneider, A
Münzenberg, G
Reiter, P
Scheidenberger, C
Scheit, H
Simon, H
Sümmerer, K
Typel, S
Wajda, E
Walus, W
Weick, H
LABYRINTH IN NUCLEAR STRUCTURE, 2004, 701 : 174 - 178
[4] Ground-state properties of neutron-rich Mg isotopes
Watanabe, S.
Minomo, K.
Shimada, M.
Tagami, S.
Kimura, M.
Takechi, M.
Fukuda, M.
Nishimura, D.
Suzuki, T.
Matsumoto, T.
Shimizu, Y. R.
Yahiro, M.
PHYSICAL REVIEW C, 2014, 89 (04):
[5] Coulomb breakup of neutron-rich isotopes of light nuclei
P. Singh
R. Kumar
R. Kharab
Physics of Atomic Nuclei, 2008, 71 : 1932 - 1939
[6] Coulomb Breakup of Neutron-Rich Isotopes of Light Nuclei
Singh, P.
Kumar, R.
Kharab, R.
PHYSICS OF ATOMIC NUCLEI, 2008, 71 (11) : 1932 - 1939
[7] Coulomb breakup of secondary beams of neutron-rich nuclei
Palit, R
Adrich, P
Aumann, T
Boretzky, K
Cortina, D
Pramanik, UD
Elze, TW
Emling, H
Fallot, M
Geissel, H
Hellström, M
Jones, KL
Khiem, LH
Kratz, JV
Kulessa, R
Leistenschneider, A
Münzenberg, G
Nociforo, C
Reiter, P
Simon, H
Sümmerer, K
Walus, W
NUCLEAR PHYSICS A, 2004, 738 : 45 - 51
[8] NUCLEAR GROUND-STATE PROPERTIES OF NEUTRON-RICH CALCIUM ISOTOPES
VERMEEREN, L
SILVERANS, RE
LIEVENS, P
KLEIN, A
NEUGART, R
SCHULZ, C
BUCHINGER, F
NUCLEI FAR FROM STABILITY/ATOMIC MASSES AND FUNDAMENTAL CONSTANTS 1992, 1993, (132): : 193 - 195
[9] Coulomb breakup of psd-shell neutron-rich nuclei
Pramanik, UD
Adrich, P
Aumann, T
Boretzky, K
Cortina, D
Elze, TW
Emling, H
Geissel, H
Hellström, M
Jones, KL
Khiem, LH
Kratz, JV
Kulessa, R
Leifels, Y
Münzenberg, G
Nocifor, C
Palit, R
Scheif, H
Simon, H
Sümmerer, K
Typel, S
Walus, W
Weick, H
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2005, 31 (10) : S1583 - S1587
[10] Ground-state properties of closed-shell neutron-rich nuclei
Taqi A.H.
Al-Rubaiee A.A.
Amin S.H.
International Journal of Nuclear Energy Science and Technology, 2023, 16 (03) : 169 - 193

← 1 2 3 4 5 →