Open AccessLifetime measurement of the 260 g.s. at SAMURAI
Author(s) -
S. Storck,
C. Caesar,
J. Kahlbow,
V. Panin,
D. S. Ahn,
L. Atar,
T. Aumann,
H. Baba,
K. Boretzky,
Hee-Guk Chae,
N. Chiga,
Sukjin Choi,
M. L. Cortés,
D. CortinaGil,
Q. Deshayes,
P. Doornenbal,
Z. Elekes,
N. Fukuda,
I. Gašparić,
K. I. Hahn,
Z. Halász,
A. Hirayama,
Ji-Gwang Hwang,
N. Inabe,
T. Isobe,
S Kim,
Toshio Kobayashi,
D. Körper,
M. D. O. Marques,
Michio Matsumoto,
Tomoki Murakami,
I. Murray,
T. Nakamura,
T. Nilsson,
H. Otsu,
S. Paschalis,
M. Pârlog,
M. Petri,
D. Rossi,
A. Saito,
M. Sasano,
H. Scheit,
P. Schrock,
Y. Shimizu,
H. Simon,
D Sohler,
O. Sorlin,
L. Stuhl,
Hideyuki Suzuki,
I. Syndikus,
H. Takeda,
H. Törnqvist,
Y. Togano,
T. Tomai,
Т. Уесака,
Hiroki Yamada,
Zu-Xing Yang,
Masahiro Yasuda,
K. Yoneda
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012106
Subject(s) - nuclear physics , neutron , isotope , ground state , physics , beam (structure) , separator (oil production) , spectrum analyzer , atomic physics , radiochemistry , chemistry , optics , thermodynamics
The ground state of the neutron unbound nucleus 26 O is speculated to have a lifetime in the pico-second regime. In order to determine the decay lifetime of the 26 O ground state with high sensitivity and precision, a new method has been applied. The experiment was performed in December 2016 at the Superconducting Analyzer for MUlti-particle from Radio Isotope Beams (SAMURAI) at the Radioactive Isotope Beam Factory (RIBF) at RIKEN. A 27 F beam was produced in the fragment separator BigRIPS and impinged on a W/Pt target 26 O 26 O outside the target. Thus, the velocity difference between the decay neutrons and the fragment 1 O delivers a characteristic spectrum from which the lifetime can be extracted.