Production of neutron-rich nuclei in the vicinity of 78Ni: Fragmentation reactions of unstable 81Ga and 82Ge beams

X. H. Sun; H. Wang; K. Yoneda; N. Aoi; H. Baba; P. Bednarczyk; Zs Dombrádi; P. Doornenbal; Zs Fülöp; S. Go; T. Hashimoto; E. Ideguchi; K. Kobayashi; Y. Kondo; J. Lee; H. N. Liu; W. P. Liu; J. L. Lou; M. Matsushita; R. Minakata; T. Motobayashi; D. Nishimura; H. Otsu; H. Sakurai; Y. Shiga; Y. P. Shen; D. Sohler; D. Steppenbeck; Y. L. Sun; S. Takeuchi; A. Tamii; R. Tanaka; Z. Y. Tian; Zs Vajta; T. Yamamoto; X. F. Yang; Z. H. Yang; Y. L. Ye; R. Yokoyama; J. Zenihiro

doi:10.1016/j.physletb.2024.139081

Production of neutron-rich nuclei in the vicinity of ⁷⁸Ni: Fragmentation reactions of unstable ⁸¹Ga and ⁸²Ge beams

X. H. Sun
, H. Wang^*
, K. Yoneda
, N. Aoi
, H. Baba
, P. Bednarczyk
, Zs Dombrádi
, P. Doornenbal
, Zs Fülöp
, S. Go
, T. Hashimoto
, E. Ideguchi
, K. Kobayashi
, Y. Kondo
, J. Lee
, H. N. Liu
, W. P. Liu
, J. L. Lou
, M. Matsushita
, R. Minakata

T. Motobayashi, D. Nishimura, H. Otsu, H. Sakurai, Y. Shiga, Y. P. Shen, D. Sohler, D. Steppenbeck, Y. L. Sun, S. Takeuchi, A. Tamii, R. Tanaka, Z. Y. Tian, Zs Vajta, T. Yamamoto, X. F. Yang, Z. H. Yang, Y. L. Ye, R. Yokoyama, J. Zenihiro

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The fragmentation reactions of neutron-rich unstable nuclei ⁸¹Ga and ⁸²Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of ⁷⁸Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the ⁷⁸Ni region. The two-step scheme using fragmentation of a post-accelerated ⁸¹Ga beam could be an option to produce neutron-rich nuclei around ⁷⁸Ni when the ⁸¹Ga beam intensity reaches 1.0×10⁸ pps, compared to the one-step scheme with fission of ²³⁸U.

Original language	English
Article number	139081
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	858
DOIs	https://doi.org/10.1016/j.physletb.2024.139081
State	Published - Nov 2024

Keywords

Production of neutron-rich nuclei
Projectile fragmentation of unstable nuclei
Two-step scheme

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10.1016/j.physletb.2024.139081

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Sun, X. H., Wang, H., Yoneda, K., Aoi, N., Baba, H., Bednarczyk, P., Dombrádi, Z., Doornenbal, P., Fülöp, Z., Go, S., Hashimoto, T., Ideguchi, E., Kobayashi, K., Kondo, Y., Lee, J., Liu, H. N., Liu, W. P., Lou, J. L., Matsushita, M., ... Zenihiro, J. (2024). Production of neutron-rich nuclei in the vicinity of ⁷⁸Ni: Fragmentation reactions of unstable ⁸¹Ga and ⁸²Ge beams. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 858, Article 139081. https://doi.org/10.1016/j.physletb.2024.139081

@article{87e2a0bbf05e47a3977c2729eaff31e1,

title = "Production of neutron-rich nuclei in the vicinity of 78Ni: Fragmentation reactions of unstable 81Ga and 82Ge beams",

abstract = "The fragmentation reactions of neutron-rich unstable nuclei 81Ga and 82Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of 78Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the 78Ni region. The two-step scheme using fragmentation of a post-accelerated 81Ga beam could be an option to produce neutron-rich nuclei around 78Ni when the 81Ga beam intensity reaches 1.0×108 pps, compared to the one-step scheme with fission of 238U.",

keywords = "Production of neutron-rich nuclei, Projectile fragmentation of unstable nuclei, Two-step scheme",

author = "Sun, \{X. H.\} and H. Wang and K. Yoneda and N. Aoi and H. Baba and P. Bednarczyk and Zs Dombr{\'a}di and P. Doornenbal and Zs F{\"u}l{\"o}p and S. Go and T. Hashimoto and E. Ideguchi and K. Kobayashi and Y. Kondo and J. Lee and Liu, \{H. N.\} and Liu, \{W. P.\} and Lou, \{J. L.\} and M. Matsushita and R. Minakata and T. Motobayashi and D. Nishimura and H. Otsu and H. Sakurai and Y. Shiga and Shen, \{Y. P.\} and D. Sohler and D. Steppenbeck and Sun, \{Y. L.\} and S. Takeuchi and A. Tamii and R. Tanaka and Tian, \{Z. Y.\} and Zs Vajta and T. Yamamoto and Yang, \{X. F.\} and Yang, \{Z. H.\} and Ye, \{Y. L.\} and R. Yokoyama and J. Zenihiro",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2024",

month = nov,

doi = "10.1016/j.physletb.2024.139081",

language = "英语",

volume = "858",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Sun, XH, Wang, H, Yoneda, K, Aoi, N, Baba, H, Bednarczyk, P, Dombrádi, Z, Doornenbal, P, Fülöp, Z, Go, S, Hashimoto, T, Ideguchi, E, Kobayashi, K, Kondo, Y, Lee, J, Liu, HN, Liu, WP, Lou, JL, Matsushita, M, Minakata, R, Motobayashi, T, Nishimura, D, Otsu, H, Sakurai, H, Shiga, Y, Shen, YP, Sohler, D, Steppenbeck, D, Sun, YL, Takeuchi, S, Tamii, A, Tanaka, R, Tian, ZY, Vajta, Z, Yamamoto, T, Yang, XF, Yang, ZH, Ye, YL, Yokoyama, R & Zenihiro, J 2024, 'Production of neutron-rich nuclei in the vicinity of ⁷⁸Ni: Fragmentation reactions of unstable ⁸¹Ga and ⁸²Ge beams', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 858, 139081. https://doi.org/10.1016/j.physletb.2024.139081

TY - JOUR

T1 - Production of neutron-rich nuclei in the vicinity of 78Ni

T2 - Fragmentation reactions of unstable 81Ga and 82Ge beams

AU - Sun, X. H.

AU - Wang, H.

AU - Yoneda, K.

AU - Aoi, N.

AU - Baba, H.

AU - Bednarczyk, P.

AU - Dombrádi, Zs

AU - Doornenbal, P.

AU - Fülöp, Zs

AU - Go, S.

AU - Hashimoto, T.

AU - Ideguchi, E.

AU - Kobayashi, K.

AU - Kondo, Y.

AU - Lee, J.

AU - Liu, H. N.

AU - Liu, W. P.

AU - Lou, J. L.

AU - Matsushita, M.

AU - Minakata, R.

AU - Motobayashi, T.

AU - Nishimura, D.

AU - Otsu, H.

AU - Sakurai, H.

AU - Shiga, Y.

AU - Shen, Y. P.

AU - Sohler, D.

AU - Steppenbeck, D.

AU - Sun, Y. L.

AU - Takeuchi, S.

AU - Tamii, A.

AU - Tanaka, R.

AU - Tian, Z. Y.

AU - Vajta, Zs

AU - Yamamoto, T.

AU - Yang, X. F.

AU - Yang, Z. H.

AU - Ye, Y. L.

AU - Yokoyama, R.

AU - Zenihiro, J.

PY - 2024/11

Y1 - 2024/11

N2 - The fragmentation reactions of neutron-rich unstable nuclei 81Ga and 82Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of 78Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the 78Ni region. The two-step scheme using fragmentation of a post-accelerated 81Ga beam could be an option to produce neutron-rich nuclei around 78Ni when the 81Ga beam intensity reaches 1.0×108 pps, compared to the one-step scheme with fission of 238U.

AB - The fragmentation reactions of neutron-rich unstable nuclei 81Ga and 82Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of 78Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the 78Ni region. The two-step scheme using fragmentation of a post-accelerated 81Ga beam could be an option to produce neutron-rich nuclei around 78Ni when the 81Ga beam intensity reaches 1.0×108 pps, compared to the one-step scheme with fission of 238U.

KW - Production of neutron-rich nuclei

KW - Projectile fragmentation of unstable nuclei

KW - Two-step scheme

UR - https://www.scopus.com/pages/publications/85206676646

U2 - 10.1016/j.physletb.2024.139081

DO - 10.1016/j.physletb.2024.139081

M3 - 文章

AN - SCOPUS:85206676646

SN - 0370-2693

VL - 858

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 139081

ER -

Production of neutron-rich nuclei in the vicinity of ⁷⁸Ni: Fragmentation reactions of unstable ⁸¹Ga and ⁸²Ge beams

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Keywords

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