Doubly strange nuclei by a hybrid-emulsion experiment E373 at KEK
作者:
J. K. Ahn,
Y. Akaishi,
H. Akikawa,
S. Aoki,
K. Arai,
S. Y. Bahk,
K. M. Baik,
B. Bassalleck,
J. H. Chung,
M. S. Chung,
D. H. Davis,
G. B. Franklin,
T. Fukuda,
K. Hoshino,
A. Ichikawa,
M. Ieiri,
K. Imai,
Y. H. Iwata,
Y. S. Iwata,
H. Kanda,
M. Kaneko,
T. Kawai,
C. O. Kim,
J. Y. Kim,
S. J. Kim,
S. H. Kim,
Y. Kondo,
T. Kouketsu,
Y. L. Lee,
J. W. C. McNabb,
M. Mitsuhara,
T. Motoba,
Y. Nagase,
C. Nagoshi,
K. Nakazawa,
H. Noumi,
S. Ogawa,
H. Okabe,
K. Oyama,
H. M. Park,
I. G. Park,
J. Parker,
Y. S. Ra,
J. T. Rhee,
A. Rusek,
H. Shibuya,
K. S. Sim,
P. K. Saha,
D. Seki,
M. Sekimoto,
J. S. Song,
H. Takahashi,
T. Takahashi,
F. Takeutchi,
H. Tanaka,
K. Tanida,
J. Tojo,
H. Torii,
S. Torikai,
D. N. Tovee,
N. Ushida,
K. Yamamoto,
Y. Yamamoto,
N. Yasuda,
J. T. Yang,
C. J. Yoon,
C. S. Yoon,
M. Yosoi,
T. Yoshida,
L. Zhu,
期刊:
AIP Conference Proceedings
(AIP Available online 1901)
卷期:
Volume 594,
issue 1
页码: 180-188
ISSN:0094-243X
年代: 1901
DOI:10.1063/1.1425502
出版商: AIP
数据来源: AIP
摘要:
A hybrid emulsion experiment E373 at KEK has been carried out to study doubly strange nuclear system. By the 8&percent; data analysis of all, one twin single-&Lgr; hypernuclei event and two events of double-&Lgr; hypernucleus have been successfully detected. The twin single-&Lgr; event is uniquely interpreted as&Ygr;−+14N→&Lgr;5He+&Lgr;5He+4He+nfor the first time. In the first double-&Lgr; hypernucleus event, “Demachi-Yanagi,” it is interpreted as&Ygr;−+12C→&Lgr;&Lgr;10Be*(or&Lgr;&Lgr;10Be*)+t.The second double-&Lgr; hypernucleus event, “NAGARA,” shows a clearly recognized topology and the interpretation is unique as&Ygr;−+12C→&Lgr;&Lgr;6He+4He+t,&Lgr;&Lgr;6He→&Lgr;5He+&pgr;−+p,&Lgr;5He→p+d+2netc. By the preliminary result of the&Lgr;&Lgr;6He,the attractive &Lgr;&Lgr; interaction has been confirmed with the&Dgr;B&Lgr;&Lgr;∼1 MeV.©2001 American Institute of Physics.
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