β-decay half-lives of 55 neutron-rich isotopes beyond the N=82 shell gap

被引：28

作者：

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

Nishimura, S. ^{[2
]}

Moller, P. ^{[3
]}

Mumpower, M. R. ^{[4
]}

Lozeva, R. ^{[5
,6
]}

Moon, C. B. ^{[7
]}

Odahara, A. ^{[8
]}

Baba, H. ^{[2
]}

Browne, F. ^{[2
,9
]}

Daido, R. ^{[8
]}

Doornenbal, P. ^{[2
]}

Fang, Y. F. ^{[8
]}

Haroon, M. ^{[8
]}

Isobe, T. ^{[2
]}

Jung, H. S. ^{[10
]}

Lorusso, G. ^{[2
,11
,12
]}

Moon, B. ^{[13
]}

Patel, Z. ^{[2
,12
]}

Rice, S. ^{[2
,12
]}

Sakurai, H. ^{[2
,14
]}

Shimizu, Y. ^{[2
]}

Sinclair, L. ^{[2
,15
]}

Soderstrom, P-A ^{[2
]}

Sumikama, T. ^{[2
]}

Watanabe, H. ^{[2
,16
]}

Xu, Z. Y. ^{[14
,17
]}

Yagi, A. ^{[8
]}

Yokoyama, R. ^{[18
]}

Ahn, D. S. ^{[2
]}

Garrote, F. L. Bello ^{[19
]}

Daugas, J. M. ^{[20
]}

Didierjean, F. ^{[21
,22
]}

Fukuda, N. ^{[2
]}

Inabe, N. ^{[2
]}

Ishigaki, T. ^{[8
]}

Kameda, D. ^{[2
]}

Kojouharov, I ^{[23
]}

Komatsubara, T. ^{[2
]}

Kubo, T. ^{[2
]}

Kurz, N. ^{[23
]}

Kwon, K. Y. ^{[24
]}

Morimoto, S. ^{[8
]}

Murai, D. ^{[2
]}

Nishibata, H. ^{[8
]}

Schaffner, H. ^{[23
]}

Sprouse, T. M. ^{[25
]}

Suzuki, H. ^{[2
]}

Takeda, H. ^{[2
]}

Tanaka, M. ^{[26
]}

Tshoo, K. ^{[24
]}

机构：

[1] Argonne Natl Lab, Phys Div, Argonne, IL 60439 USA

[2] RIKEN Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[3] P Moller Sci Comp & Graph Inc, POB 1440, Los Alamos, NM 87544 USA

[4] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA

[5] Univ Strasbourg, IN2P3 CNRS, IPHC, F-67037 Strasbourg 2, France

[6] Univ Paris Saclay, IN2P3 CNRS, CSNSM, Orsay Campus, F-91405 Orsay, France

[7] Hoseo Univ, Fac Sci, Chungnam 31499, South Korea

[8] Osaka Univ, Dept Phys, Machikaneyama Machi 1-1, Toyonaka, Osaka 5600043, Japan

[9] Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England

[10] Chung Ang Univ, Dept Phys, Seoul 06974, South Korea

[11] Natl Phys Lab, Teddington TW11 0LW, Middx, England

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

[13] Korea Univ, Dept Phys, Seoul 02841, South Korea

[14] Univ Tokyo, Dept Phys, Bunkyo Ku, Hongo 7-3-1, Tokyo 1130033, Japan

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

[16] Beihang Univ, Sch Phys & Nucl Energy Engn, IRCNPC, Beijing 100191, Peoples R China

[17] Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China

[18] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan

[19] Univ Oslo, POB 1072 Blindern, N-0316 Oslo, Norway

[20] CEA, DAM, DIF, F-91297 Arpajon, France

[21] CNRS, IN2P3, PHC, F-67037 Strasbourg 2, France

[22] Univ Strasbourg, F-67037 Strasbourg 2, France

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

[24] Inst for Basic Sci Korea, Rare Isotope Sci Project, Daejeon 34047, South Korea

[25] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[26] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan

来源：

PHYSICAL REVIEW C | 2020年 / 101卷 / 04期

基金：

新加坡国家研究基金会; 英国科学技术设施理事会; 匈牙利科学研究基金会;

关键词：

GROUND-STATE MASSES; R-PROCESS; DRIVEN WINDS; NUCLEOSYNTHESIS; PRECURSORS; NUCLEI; IDENTIFICATION; STARS;

D O I：

10.1103/PhysRevC.101.042801

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 beta-decay half-lives of 55 neutron-rich nuclei Sn134-139, Sb134-142, Te137-144, I140-146, Xe142-148, Cs145-151, Ba148-153, and La151-155 were measured at the Radioactive Isotope Beam Factory employing the projectile fission fragments of U-238. The nuclear level structure, which relates to deformation, has a large effect on the half-lives. The impact of newly measured half-lives on modeling the astrophysical origin of the heavy elements is studied in the context of r process nucleosynthesis. For a wide variety of astrophysical conditions, including those in which fission recycling occurs, the half-lives have an important local impact on the second (A approximate to 130) peak.

引用

页数：7

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