Interaction- and charge-changing cross sections for neutron-rich 63−80Cu isotopes toward the derivation of neutron skin thickness

G. Takayama; M. Fukuda; M. Tanaka; M. Fukutome; M. Takechi; T. Suzuki; A. Homma; D. Nishimura; T. Moriguchi; D. S. Ahn; A. Aimaganbetov; M. Amano; M. Amitani; H. Arakawa; H. Baba; S. Bagchi; K. H. Behr; N. Burtebayev; K. Chikaato; H. Du; T. Fujii; N. Fukuda; C. Fukushima; H. Geissel; T. Hori; S. Hoshino; R. Igosawa; A. Ikeda; N. Inabe; K. Inomata; S. Ishitani; K. Itahashi; T. Izumikawa; D. Kamioka; N. Kanda; I. Kato; I. Kenzhina; Z. Korkulu; Y. Kuk; K. Kusaka; K. Matsuta; M. Mihara; E. Miyata; D. Nagae; S. Nakamura; M. Nassurlla; K. Nishimuro; K. Nishizuka; N. Noguchi; M. Ohtake; T. Ohtsubo; S. Omika; H. J. Ong; K. Onishi; A. Ozawa; A. Prochazka; S. K. Sakhiyev; H. Sakurai; C. Scheidenberger; Y. Shimizu; T. Sumikama; S. Suzuki; H. Suzuki; R. Taguchi; H. Takeda; Y. Tanaka; Y. Tanaka; I. Tanihata; Y. Togano; T. Wada; K. Wakayama; S. Yagi; T. Yamaguchi; R. Yanagihara; Y. Yanagisawa; A. Yano; K. Yasuda; K. Yoshida; T. K. Zholdybayev

doi:10.1016/j.nuclphysa.2025.123261

Interaction- and charge-changing cross sections for neutron-rich ⁶³⁻⁸⁰Cu isotopes toward the derivation of neutron skin thickness

G. Takayama^*
, M. Fukuda
, M. Tanaka
, M. Fukutome
, M. Takechi
, T. Suzuki
, A. Homma
, D. Nishimura
, T. Moriguchi
, D. S. Ahn
, A. Aimaganbetov
, M. Amano
, M. Amitani
, H. Arakawa
, H. Baba
, S. Bagchi
, K. H. Behr
, N. Burtebayev
, K. Chikaato
, H. Du

T. Fujii, N. Fukuda, C. Fukushima, H. Geissel, T. Hori, S. Hoshino, R. Igosawa, A. Ikeda, N. Inabe, K. Inomata, S. Ishitani, K. Itahashi, T. Izumikawa, D. Kamioka, N. Kanda, I. Kato, I. Kenzhina, Z. Korkulu, Y. Kuk, K. Kusaka, K. Matsuta, M. Mihara, E. Miyata, D. Nagae, S. Nakamura, M. Nassurlla, K. Nishimuro, K. Nishizuka, N. Noguchi, M. Ohtake, T. Ohtsubo, S. Omika, H. J. Ong, K. Onishi, A. Ozawa, A. Prochazka, S. K. Sakhiyev, H. Sakurai, C. Scheidenberger, Y. Shimizu, T. Sumikama, S. Suzuki, H. Suzuki, R. Taguchi, H. Takeda, Y. Tanaka, Y. Tanaka, I. Tanihata, Y. Togano, T. Wada, K. Wakayama, S. Yagi, T. Yamaguchi, R. Yanagihara, Y. Yanagisawa, A. Yano, K. Yasuda, K. Yoshida, T. K. Zholdybayev

^*Corresponding author for this work

The University of Osaka
Kyushu University
Niigata University
Saitama University
Tokyo City University
University of Tsukuba
RIKEN
L.N. Gumilyov Eurasian National University
Indian Institute of Technology, Dhanbad
GSI Helmholtz Centre for Heavy Ion Research
Institute for Basic Science
CAS - Institute of Modern Physics

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

Abstract

We have measured the interaction cross sections (σ_I) and charge-changing cross sections (σ_cc) for neutron-rich copper isotopes with mass numbers A=63−80 using the transmission method at the RIBF facility, RIKEN. From these values, we aim to derive the proton distribution radius (R_p) and the neutron distribution radius (R_n) for each isotope through subsequent analysis. Then, we plan to determine the neutron skin thickness (ΔR_np=R_n−R_p) for each isotope. These results will provide a new constraint on the symmetry energy parameter L of the equation of state (EoS) of nuclear matter and contribute to a deeper understanding of the nuclear structure of exotic nuclei.

Original language	English
Article number	123261
Journal	Nuclear Physics A
Volume	1065
DOIs	https://doi.org/10.1016/j.nuclphysa.2025.123261
State	Published - Jan 2026
Externally published	Yes

Keywords

Charge-changing cross section
EoS
Interaction cross section
Neutron skin thickness
Neutron-rich copper isotopes
Nuclear equation of state

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10.1016/j.nuclphysa.2025.123261

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Takayama, G., Fukuda, M., Tanaka, M., Fukutome, M., Takechi, M., Suzuki, T., Homma, A., Nishimura, D., Moriguchi, T., Ahn, D. S., Aimaganbetov, A., Amano, M., Amitani, M., Arakawa, H., Baba, H., Bagchi, S., Behr, K. H., Burtebayev, N., Chikaato, K., ... Zholdybayev, T. K. (2026). Interaction- and charge-changing cross sections for neutron-rich ⁶³⁻⁸⁰Cu isotopes toward the derivation of neutron skin thickness. Nuclear Physics A, 1065, Article 123261. https://doi.org/10.1016/j.nuclphysa.2025.123261

@article{239a6501ff8e495db04d4b950d9975e2,

title = "Interaction- and charge-changing cross sections for neutron-rich 63−80Cu isotopes toward the derivation of neutron skin thickness",

abstract = "We have measured the interaction cross sections (σI) and charge-changing cross sections (σcc) for neutron-rich copper isotopes with mass numbers A=63−80 using the transmission method at the RIBF facility, RIKEN. From these values, we aim to derive the proton distribution radius (Rp) and the neutron distribution radius (Rn) for each isotope through subsequent analysis. Then, we plan to determine the neutron skin thickness (ΔRnp=Rn−Rp) for each isotope. These results will provide a new constraint on the symmetry energy parameter L of the equation of state (EoS) of nuclear matter and contribute to a deeper understanding of the nuclear structure of exotic nuclei.",

keywords = "Charge-changing cross section, EoS, Interaction cross section, Neutron skin thickness, Neutron-rich copper isotopes, Nuclear equation of state",

author = "G. Takayama and M. Fukuda and M. Tanaka and M. Fukutome and M. Takechi and T. Suzuki and A. Homma and D. Nishimura and T. Moriguchi and Ahn, \{D. S.\} and A. Aimaganbetov and M. Amano and M. Amitani and H. Arakawa and H. Baba and S. Bagchi and Behr, \{K. H.\} and N. Burtebayev and K. Chikaato and H. Du and T. Fujii and N. Fukuda and C. Fukushima and H. Geissel and T. Hori and S. Hoshino and R. Igosawa and A. Ikeda and N. Inabe and K. Inomata and S. Ishitani and K. Itahashi and T. Izumikawa and D. Kamioka and N. Kanda and I. Kato and I. Kenzhina and Z. Korkulu and Y. Kuk and K. Kusaka and K. Matsuta and M. Mihara and E. Miyata and D. Nagae and S. Nakamura and M. Nassurlla and K. Nishimuro and K. Nishizuka and N. Noguchi and M. Ohtake and T. Ohtsubo and S. Omika and Ong, \{H. J.\} and K. Onishi and A. Ozawa and A. Prochazka and Sakhiyev, \{S. K.\} and H. Sakurai and C. Scheidenberger and Y. Shimizu and T. Sumikama and S. Suzuki and H. Suzuki and R. Taguchi and H. Takeda and Y. Tanaka and Y. Tanaka and I. Tanihata and Y. Togano and T. Wada and K. Wakayama and S. Yagi and T. Yamaguchi and R. Yanagihara and Y. Yanagisawa and A. Yano and K. Yasuda and K. Yoshida and Zholdybayev, \{T. K.\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors",

year = "2026",

month = jan,

doi = "10.1016/j.nuclphysa.2025.123261",

language = "英语",

volume = "1065",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

}

Takayama, G, Fukuda, M, Tanaka, M, Fukutome, M, Takechi, M, Suzuki, T, Homma, A, Nishimura, D, Moriguchi, T, Ahn, DS, Aimaganbetov, A, Amano, M, Amitani, M, Arakawa, H, Baba, H, Bagchi, S, Behr, KH, Burtebayev, N, Chikaato, K, Du, H, Fujii, T, Fukuda, N, Fukushima, C, Geissel, H, Hori, T, Hoshino, S, Igosawa, R, Ikeda, A, Inabe, N, Inomata, K, Ishitani, S, Itahashi, K, Izumikawa, T, Kamioka, D, Kanda, N, Kato, I, Kenzhina, I, Korkulu, Z, Kuk, Y, Kusaka, K, Matsuta, K, Mihara, M, Miyata, E, Nagae, D, Nakamura, S, Nassurlla, M, Nishimuro, K, Nishizuka, K, Noguchi, N, Ohtake, M, Ohtsubo, T, Omika, S, Ong, HJ, Onishi, K, Ozawa, A, Prochazka, A, Sakhiyev, SK, Sakurai, H, Scheidenberger, C, Shimizu, Y, Sumikama, T, Suzuki, S, Suzuki, H, Taguchi, R, Takeda, H, Tanaka, Y, Tanaka, Y, Tanihata, I, Togano, Y, Wada, T, Wakayama, K, Yagi, S, Yamaguchi, T, Yanagihara, R, Yanagisawa, Y, Yano, A, Yasuda, K, Yoshida, K & Zholdybayev, TK 2026, 'Interaction- and charge-changing cross sections for neutron-rich ⁶³⁻⁸⁰Cu isotopes toward the derivation of neutron skin thickness', Nuclear Physics A, vol. 1065, 123261. https://doi.org/10.1016/j.nuclphysa.2025.123261

TY - JOUR

T1 - Interaction- and charge-changing cross sections for neutron-rich 63−80Cu isotopes toward the derivation of neutron skin thickness

AU - Takayama, G.

AU - Fukuda, M.

AU - Tanaka, M.

AU - Fukutome, M.

AU - Takechi, M.

AU - Suzuki, T.

AU - Homma, A.

AU - Nishimura, D.

AU - Moriguchi, T.

AU - Ahn, D. S.

AU - Aimaganbetov, A.

AU - Amano, M.

AU - Amitani, M.

AU - Arakawa, H.

AU - Baba, H.

AU - Bagchi, S.

AU - Behr, K. H.

AU - Burtebayev, N.

AU - Chikaato, K.

AU - Du, H.

AU - Fujii, T.

AU - Fukuda, N.

AU - Fukushima, C.

AU - Geissel, H.

AU - Hori, T.

AU - Hoshino, S.

AU - Igosawa, R.

AU - Ikeda, A.

AU - Inabe, N.

AU - Inomata, K.

AU - Ishitani, S.

AU - Itahashi, K.

AU - Izumikawa, T.

AU - Kamioka, D.

AU - Kanda, N.

AU - Kato, I.

AU - Kenzhina, I.

AU - Korkulu, Z.

AU - Kuk, Y.

AU - Kusaka, K.

AU - Matsuta, K.

AU - Mihara, M.

AU - Miyata, E.

AU - Nagae, D.

AU - Nakamura, S.

AU - Nassurlla, M.

AU - Nishimuro, K.

AU - Nishizuka, K.

AU - Noguchi, N.

AU - Ohtake, M.

AU - Ohtsubo, T.

AU - Omika, S.

AU - Ong, H. J.

AU - Onishi, K.

AU - Ozawa, A.

AU - Prochazka, A.

AU - Sakhiyev, S. K.

AU - Sakurai, H.

AU - Scheidenberger, C.

AU - Shimizu, Y.

AU - Sumikama, T.

AU - Suzuki, S.

AU - Suzuki, H.

AU - Taguchi, R.

AU - Takeda, H.

AU - Tanaka, Y.

AU - Tanihata, I.

AU - Togano, Y.

AU - Wada, T.

AU - Wakayama, K.

AU - Yagi, S.

AU - Yamaguchi, T.

AU - Yanagihara, R.

AU - Yanagisawa, Y.

AU - Yano, A.

AU - Yasuda, K.

AU - Yoshida, K.

AU - Zholdybayev, T. K.

PY - 2026/1

Y1 - 2026/1

N2 - We have measured the interaction cross sections (σI) and charge-changing cross sections (σcc) for neutron-rich copper isotopes with mass numbers A=63−80 using the transmission method at the RIBF facility, RIKEN. From these values, we aim to derive the proton distribution radius (Rp) and the neutron distribution radius (Rn) for each isotope through subsequent analysis. Then, we plan to determine the neutron skin thickness (ΔRnp=Rn−Rp) for each isotope. These results will provide a new constraint on the symmetry energy parameter L of the equation of state (EoS) of nuclear matter and contribute to a deeper understanding of the nuclear structure of exotic nuclei.

AB - We have measured the interaction cross sections (σI) and charge-changing cross sections (σcc) for neutron-rich copper isotopes with mass numbers A=63−80 using the transmission method at the RIBF facility, RIKEN. From these values, we aim to derive the proton distribution radius (Rp) and the neutron distribution radius (Rn) for each isotope through subsequent analysis. Then, we plan to determine the neutron skin thickness (ΔRnp=Rn−Rp) for each isotope. These results will provide a new constraint on the symmetry energy parameter L of the equation of state (EoS) of nuclear matter and contribute to a deeper understanding of the nuclear structure of exotic nuclei.

KW - Charge-changing cross section

KW - EoS

KW - Interaction cross section

KW - Neutron skin thickness

KW - Neutron-rich copper isotopes

KW - Nuclear equation of state

UR - https://www.scopus.com/pages/publications/105019395502

U2 - 10.1016/j.nuclphysa.2025.123261

DO - 10.1016/j.nuclphysa.2025.123261

M3 - 文章

AN - SCOPUS:105019395502

SN - 0375-9474

VL - 1065

JO - Nuclear Physics A

JF - Nuclear Physics A

M1 - 123261

ER -

Interaction- and charge-changing cross sections for neutron-rich ⁶³⁻⁸⁰Cu isotopes toward the derivation of neutron skin thickness

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Keywords

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