Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Li, P. J.*; Beaumel, D.*; Lee, J.*; Assi, M.*; Chen, S.*; Franchoo, S.*; Gibelin, J.*; Hammache, F.*; Harada, T.*; Kanada-En'yo, Yoshiko*; et al.
Physical Review Letters, 131(21), p.212501_1 - 212501_7, 2023/11
Times Cited Count:21 Percentile:94.59(Physics, Multidisciplinary)The cluster structure of the neutron-rich isotope Be has been probed via the (
) reaction. The triple differential cross-section was extracted and compared to distorted-wave impulse approximation reaction calculations performed in a microscopic framework using the Tohsaki-Horiuchi-Schuck-R
pke wave function and the wave function deduced from Antisymmetrized Molecular Dynamics calculations. The remarkable agreement between calculated and measured cross-sections in both shape and magnitude validates the description of the
Be ground-state as a rather compact nuclear molecule.
Pohl, T.*; Sun, Y. L.*; Obertelli, A.*; Lee, J.*; Gmez-Ramos, M.*; Ogata, Kazuyuki*; Yoshida, Kazuki; Cai, B. S.*; Yuan, C. X.*; Brown, B. A.*; et al.
Physical Review Letters, 130(17), p.172501_1 - 172501_8, 2023/04
Times Cited Count:13 Percentile:87.42(Physics, Multidisciplinary)We report on the first proton-induced single proton- and neutron-removal reactions from the neutron deficient O nucleus with large Fermi-surface asymmetry at
100 MeV/nucleon. Our results provide the first quantitative contributions of multiple reaction mechanisms including the quasifree knockout, inelastic scattering, and nucleon transfer processes. It is shown that the inelastic scattering and nucleon transfer, usually neglected at such energy regime, contribute about 50% and 30% to the loosely bound proton and deeply bound neutron removal, respectively.
Tanaka, Junki*; Yang, Z.*; Typel, S.*; Adachi, Satoshi*; Bai, S.*; van Beek, P.*; Beaumel, D.*; Fujikawa, Yuki*; Han, J.*; Heil, S.*; et al.
Science, 371(6526), p.260 - 264, 2021/01
Times Cited Count:75 Percentile:99.30(Multidisciplinary Sciences)By employing quasi-free -cluster-knockout reactions, we obtained direct experimental evidence for the formation of
clusters at the surface of neutron-rich tin isotopes. The observed monotonous decrease of the reaction cross sections with increasing mass number, in excellent agreement with the theoretical prediction, implies a tight interplay between
-cluster formation and the neutron skin.
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:19 Percentile:72.96(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.
Flavigny, F.*; Gillibert, A.*; Nalpas, L.*; Obertelli, A.*; Keeley, N.*; Barbieri, C.*; Beaumel, D.*; Boissinot, S.*; Burgunder, G.*; Cipollone, A.*; et al.
Physical Review Letters, 110(12), p.122503_1 - 122503_5, 2013/03
Times Cited Count:79 Percentile:91.87(Physics, Multidisciplinary)no abstracts in English
Guillot, J.*; Beaumel, D.*; Van den Berg, A. M.*; Brandenburg. S.*; Davids, B.*; Fortier, S.*; Fujiwara, Mamoru; Gals, S.*; Harakeh, M. N.*; Hunyadi, M.*; et al.
Nuclear Physics A, 731, p.106 - 113, 2004/02
Times Cited Count:4 Percentile:30.32(Physics, Nuclear)no abstracts in English