Beta decay half-lives of neutron rich Ti-Co isotopes around N = 40 (vol 660, pg 3, 1999)

被引：51

作者：

Sorlin, O ^{[1
]}

Donzaud, C

Axelsson, L

Belleguic, M

Béraud, R

Borcea, C

Canchel, G

Chabanat, E

Daugas, JM

Emsallem, A

Girod, M

Guillemaud-Mueller, D

Kratz, KL

Leenhardt, S

Lewitowicz, M

Longour, C

Lopez, MJ

Santos, FD

Petizon, L

Pfeiffer, B

Pougheon, F

Saint-Laurent, MG

Sauvestre, JE

机构：

[1] CNRS, IPN, IN2P3, F-91406 Orsay, France

[2] Chalmers Univ Technol, Inst Fys, S-41296 Gothenburg, Sweden

[3] Inst Phys Nucl, F-69622 Villeurbanne, France

[4] GANIL, F-14021 Caen, France

[5] IAP, Bucharest, Romania

[6] Ctr Etud Bruyeres Le Chatel, F-91680 Bruyeres Le Chatel, France

[7] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55099 Mainz, Germany

[8] Univ Strasbourg, IReS Strasbourg, UMR 7500, F-67037 Strasbourg 2, France

来源：

NUCLEAR PHYSICS A | 2000年 / 669卷 / 3-4期

关键词：

Ti57-59; V59-62; Cr61-64; Mn63-66; Fe65-68; Co67-70 (beta(-)) [from Ni-58(Kr-86; X); Epsilon=60.4; MeV/nucleon; Measured Epsilon gamma; beta-gamma-coinc; T-1/2; r-process implication;

D O I：

10.1016/S0375-9474(00)00137-8

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 neutron-rich Ti57-59, V59-62, Cr61-64, Mn63-66, Fe65-68, Co67-70 at GANIL. via interactions of a 60.4 MeV/u Kr-86(34+) With a Ni-58 target. They have been separated by the doubly achromatic spectrometer LISE3. Beta-decay half-lives have been determined for all produced nuclei, and subsequent gamma-rays have been observed for the most efficiently produced nuclei. The measured half-lives of vanadium and chromium isotopes are compared to QRPA calculations using ground states deformations from the FRDM or ETFSI models. In an astrophysical context, the short half-lives of Ti-58 and Cr-64 indicate that these nuclei are potential r-process progenitors, after beta-decay, of Fe-58 and Ni-64 in certain inclusions of meteorites. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：351 / 367

页数：17

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