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Tang, T. L.*; Uesaka, Tomohiro*; Kawase, Shoichiro; Beaumel, D.*; Dozono, Masanori*; Fujii, Toshihiko*; Fukuda, Naoki*; Fukunaga, Taku*; Galindo-Uribarri, A.*; Hwang, S. H.*; et al.
Physical Review Letters, 124(21), p.212502_1 - 212502_6, 2020/05
Times Cited Count:18 Percentile:73.39(Physics, Multidisciplinary)The structure of a neutron-rich F nucleus is investigated by a quasifree (
) knockout reaction. The sum of spectroscopic factors of
orbital is found to be 1.0
0.3. The result shows that the
O core of
F nucleus significantly differs from a free
O nucleus, and the core consists of
35%
O
, and
65% excited
O. The result shows that the
O core of
F nucleus significantly differs from a free
O nucleus. The result may infer that the addition of the
proton considerably changes the neutron structure in
F from that in
O, which could be a possible mechanism responsible for the oxygen dripline anomaly.