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희귀 핵 연구단
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Charge-changing cross sections for Ca42-51 and effect of charged-particle evaporation induced by neutron-removal reactions

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Title
Charge-changing cross sections for Ca42-51 and effect of charged-particle evaporation induced by neutron-removal reactions
Author(s)
Tanaka, M.; Takechi, M.; Homma, A.; Prochazka, A.; Fukuda, M.; Nishimura, D.; Suzuki, T.; Moriguchi, T.; Ahn, D. S.; Aimaganbetov, A.; Amano, M.; Arakawa, H.; Bagchi, S.; Behr, K-H; Burtebayev, N.; Chikaato, K.; Du, H.; Fujii, T.; Fukuda, N.; Geissel, H.; Hori, T.; Hoshino, S.; Igosawa, R.; Ikeda, A.; Inabe, N.; Inomata, K.; Itahashi, K.; Izumikawa, T.; Kamioka, D.; Kanda, N.; Kato, I; Kenzhina, I; Z. Korkulu; Kuk, Y.; Kusaka, K.; Matsuta, K.; Mihara, M.; Miyata, E.; Nagae, D.; Nakamura, S.; Nassurlla, M.; Nishimuro, K.; Nishizuka, K.; Ohnishi, K.; Ohtake, M.; Ohtsubo, T.; Omika, S.; Ong, H. J.; Ozawa, A.; Sakurai, H.; Scheidenberger, C.; Shimizu, Y.; Sugihara, T.; Sumikama, T.; Suzuki, H.; Suzuki, S.; Takeda, H.; Tanaka, Y.; Tanaka, Y. K.; Tanihata, I; Wada, T.; Wakayama, K.; Yagi, S.; Yamaguchi, T.; Yanagihara, R.; Yanagisawa, Y.; Yoshida, K.; Zholdybayev, T. K.
Publication Date
2022-07
Journal
PHYSICAL REVIEW C, v.106, no.1
Publisher
AMER PHYSICAL SOC
Abstract
Charge-changing cross sections sigma(CC) for Ca42-51 on a carbon target at around 280 MeV/nucleon have been measured. Though the existing point-proton radii r(p) of Ca isotopes increase as the neutron number increases, the measured sigma(CC) data show a significant decrease, which is against the expectation from a simple Glauber-like model. We found that this observed phenomenon could be attributed to the charged-particle evaporation effect induced by the neutron-removal reaction. By taking the evaporation effect into account, various sigma(CC) data sets for nuclides from C to Fe isotopes on C-12 measured at around 280 MeV/nucleon are reproduced with a standard deviation of 1.6%. It is also clarified that this evaporation effect becomes negligibly small in the neutron-rich region. The evaluated relation between sigma(CC) and r(p) using the current model indicates that sigma(CC) data for neutron-rich Ca isotopes (A >= 51) are highly sensitive to r(p). This high sensitivity potentially allows one to determine the r(p) of very neutron-rich nuclei.
URI
https://pr.ibs.re.kr/handle/8788114/12380
DOI
10.1103/PhysRevC.106.014617
ISSN
2469-9985
Appears in Collections:
Center for Exotic Nuclear Studies(희귀 핵 연구단) > 1. Journal Papers (저널논문)
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