Mapping the N=40 island of inversion: Precision mass measurements of neutron-rich Fe isotopes

被引：11

作者：

Porter, W. S. ^{[1
,2
]}

Ashrafkhani, B. ^{[3
]}

Bergmann, J. ^{[4
]}

Brown, C. ^{[5
]}

Brunner, T. ^{[1
,6
]}

Cardona, J. D. ^{[1
,7
]}

Curien, D. ^{[8
]}

Dedes, I ^{[9
]}

Dickel, T. ^{[4
,10
]}

Dudek, J. ^{[8
,11
]}

Dunling, E. ^{[1
,12
]}

Gwinner, G. ^{[7
]}

Hockenbery, Z. ^{[1
,6
]}

Holt, J. D. ^{[1
,6
]}

Hornung, C. ^{[10
]}

Izzo, C. ^{[1
]}

Jacobs, A. ^{[1
,2
]}

Javaji, A. ^{[1
,2
]}

Kootte, B. ^{[1
,7
]}

Kripko-Koncz, G. ^{[4
]}

Lykiardopoulou, E. M. ^{[1
,2
]}

Miyagi, T. ^{[1
]}

Mukul, I ^{[1
]}

Murboeck, T. ^{[1
]}

Plass, W. R. ^{[4
,10
]}

Reiter, M. P. ^{[1
,4
,5
]}

Ringuette, J. ^{[1
,13
]}

Scheidenberger, C. ^{[4
,10
,14
]}

Silwal, R. ^{[1
,17
]}

Walls, C. ^{[1
,7
]}

Wang, H. L. ^{[15
]}

Wang, Y. ^{[1
,2
]}

Yang, J. ^{[11
,15
]}

Dilling, J. ^{[1
,2
]}

Kwiatkowski, A. A. ^{[1
,16
]}

机构：

[1] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada

[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[3] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[4] Justus Liebig Univ, Phys Inst 2, D-35392 Giessen, Germany

[5] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3FD, Midlothian, Scotland

[6] McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada

[7] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada

[8] Univ Strasbourg, CNRS, IPHC, UMR 7178, F-67037 Strasbourg, France

[9] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland

[10] GSI Helmholtzzentrum Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany

[11] Marie Curie Sklodowska Univ, Inst Phys, PL-20031 Lublin, Poland

[12] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[13] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

[14] GSI Helmholtzzentrum Schwerionenforsch, Helmholtz Forsch Akad Hessen Fair HFHF, Campus Giessen, D-35392 Giessen, Germany

[15] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 4500001, Peoples R China

[16] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada

[17] Appalachian State Univ, Dept Phys & Astron, Boone, NC 28608 USA

来源：

PHYSICAL REVIEW C | 2022年 / 105卷 / 04期

基金：

中国国家自然科学基金; 英国科学技术设施理事会; 加拿大自然科学与工程研究理事会;

关键词：

ION-SOURCE; DEFORMATION;

D O I：

10.1103/PhysRevC.105.L041301

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：

Nuclear properties across the chart of nuclides are key to improving and validating our understanding of the strong interaction in nuclear physics. We present high-precision mass measurements of neutron-rich Fe isotopes performed at the TITAN facility. The multiple-reflection time-of-flight mass spectrometer (MR-ToFMS), achieving a resolving power greater than 600 000 for the first time, enabled the measurement of Fe63-70, including first-time high-precision direct measurements (delta m/m approximate to 10(-7)) of Fe68-70, as well as the discovery of a long-lived isomeric state in Fe-69. These measurements are accompanied by both mean-field and ab initio calculations using the most recent realizations which enable theoretical assignment of the spin-parities of the Fe-69 ground and isomeric states. Together with mean-field calculations of quadrupole deformation parameters for the Fe isotope chain, these results benchmark a maximum of deformation in the N = 40 island of inversion in Fe and shed light on trends in level densities indicated in the newly refined mass surface.

引用

页数：8

共 56 条

[41] Commissioning and performance of TITAN's Multiple-Reflection Time-of-Flight Mass-Spectrometer and isobar separator
Reiter, M. P.
San Andres, S. Ayet
Bergmann, J.
Dickel, T.
Dilling, J.
Jacobs, A.
Kwiatkowski, A. A.
Plass, W. R.
Scheidenberger, C.
Short, D.
Will, C.
Babcock, C.
Dunling, E.
Finlay, A.
Hornung, C.
Jesch, C.
Klawitter, R.
Kootte, B.
Lascar, D.
Leistenschneider, E.
Murboeck, T.
Paul, S. F.
Yavor, M.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2021, 1018
[42] Enhanced Quadrupole Collectivity at N = 40: The Case of Neutron-Rich Fe Isotopes
Rother, W.
Dewald, A.
Iwasaki, H.
Lenzi, S. M.
Starosta, K.
Bazin, D.
Baugher, T.
Brown, B. A.
Crawford, H. L.
Fransen, C.
Gade, A.
Ginter, T. N.
Glasmacher, T.
Grinyer, G. F.
Hackstein, M.
Ilie, G.
Jolie, J.
McDaniel, S.
Miller, D.
Petkov, P.
Pissulla, Th.
Ratkiewicz, A.
Ur, C. A.
Voss, P.
Walsh, K. A.
Weisshaar, D.
Zell, K. -O.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (02)
[43] High-resolution, accurate multiple-reflection time-of-flight mass spectrometry for short-lived, exotic nuclei of a few events in their ground and low-lying isomeric states
San Andres, Samuel Ayet
Hornung, Christine
Ebert, Jens
Plass, Wolfgang R.
Dickel, Timo
Geissel, Hans
Scheidenberger, Christoph
Bergmann, Julian
Greiner, Florian
Haettner, Emma
Jesch, Christian
Lippert, Wayne
Mardor, Israel
Miskun, Ivan
Patyk, Zygmunt
Pietri, Stephane
Pihktelev, Alexander
Purushothaman, Sivaji
Reiter, Moritz P.
Rink, Ann-Kathrin
Weick, Helmut
Yavor, Mikhail, I
Bagchi, Soumya
Charviakova, Volha
Constantin, Paul
Diwisch, Marcel
Finlay, Andrew
Kaur, Satbir
Knoebel, Ronja
Lang, Johannes
Mei, Bo
Moore, Iain D.
Otto, Jan-Hendrik
Pohjalainen, Ilkka
Prochazka, Andrej
Rappold, Christophe
Takechi, Maya
Tanaka, Yoshiki K.
Winfield, John S.
Xu, Xiaodong
[J]. PHYSICAL REVIEW C, 2019, 99 (06)
[44] Extension of the N=40 Island of Inversion towards N=50: Spectroscopy of 66Cr, 70,72Fe
Santamaria, C.
Louchart, C.
Obertelli, A.
Werner, V.
Doornenbal, P.
Nowacki, F.
Authelet, G.
Baba, H.
Calvet, D.
Chateau, F.
Corsi, A.
Delbart, A.
Gheller, J. -M.
Gillibert, A.
Isobe, T.
Lapoux, V.
Matsushita, M.
Momiyama, S.
Motobayashi, T.
Niikura, M.
Otsu, H.
Peron, C.
Peyaud, A.
Pollacco, E. C.
Rousse, J. -Y.
Sakurai, H.
Sasano, M.
Shiga, Y.
Takeuchi, S.
Taniuchi, R.
Uesaka, T.
Wang, H.
Yoneda, K.
Browne, F.
Chung, L. X.
Dombradi, Zs.
Franchoo, S.
Giacoppo, F.
Gottardo, A.
Hadynska-Klek, K.
Korkulu, Z.
Koyama, S.
Kubota, Y.
Lee, J.
Lettmann, M.
Lozeva, R.
Matsui, K.
Miyazaki, T.
Nishimura, S.
Olivier, L.
[J]. PHYSICAL REVIEW LETTERS, 2015, 115 (19)
[45] Thick-restart block Lanczos method for large-scale shell-model calculations
Shimizu, Noritaka
Mizusaki, Takahiro
Utsuno, Yutaka
Tsunoda, Yusuke
[J]. COMPUTER PHYSICS COMMUNICATIONS, 2019, 244 : 372 - 384
[46] Saturation with chiral interactions and consequences for finite nuclei
Simonis, J.
Stroberg, S. R.
Hebeler, K.
Holt, J. D.
Schwenk, A.
[J]. PHYSICAL REVIEW C, 2017, 96 (01)
[47] New region of deformation in the neutron-rich 2460Cr36 and 2462Cr38
Sorlin, O
Donzaud, C
Nowacki, F
Angélique, JC
Azaiez, F
Bourgeois, C
Chiste, V
Dlouhy, Z
Grévy, S
Guillemaud-Mueller, D
Ibrahim, F
Kratz, KL
Lewitowicz, M
Lukyanov, SM
Mrasek, J
Penionzhkevich, YE
Santos, FD
Pfeiffer, B
Pougheon, F
Poves, A
Saint-Laurent, MG
Stanoiu, M
[J]. EUROPEAN PHYSICAL JOURNAL A, 2003, 16 (01) : 55 - 61
[48] Stresau D, 2006, 54 ASMS C MASS SPECT
[49] Ab Initio Limits of Atomic Nuclei
Stroberg, S. R.
Holt, J. D.
Schwenk, A.
Simonis, J.
[J]. PHYSICAL REVIEW LETTERS, 2021, 126 (02)
[50] Nucleus-Dependent Valence-Space Approach to Nuclear Structure
Stroberg, S. R.
Calci, A.
Hergert, H.
Holt, J. D.
Bogner, S. K.
Roth, R.
Schwenk, A.
[J]. PHYSICAL REVIEW LETTERS, 2017, 118 (03)

← 1 2 3 4 5 6 →