Proton-induced deuteron knockout ( <i>p,pd</i> ) on 12C and 16O at 226 MeV
Abstract The proton-induced deuteron knockout reaction (p, pd) provides a unique opportunity to exploit proton-neutron correlations and the deuteron cluster structure of nuclei. Direct deuteron knockout experiments on 12C and 16O under quasi-free scattering conditions have been carried out under the ONOKORO project using a 226 MeV proton beam at RCNP, Osaka, Japan. Deuterons from the knockout reaction, acting as clusters, were unambiguously detected at the focal plane of the Large Acceptance Spectrometer. Outgoing protons, following the knockout of clusters, were detected at the focal plane of the Grand Raiden spectrometer to correctly reconstruct the expected events. (p, pd) reactions are established successfully, and excitation energy spectra for the residual nuclei 10B and 14N are obtained. Results showed that a large difference in transition strength toward the low-lying energy level of residual nuclei, including the ground state, was found in comparison to other studies. Theoretical calculations using the PIKOE package based on the distorted-wave impulse approximation are conducted to deduce the triple differential cross section of (p, pd) reaction, and experimental spectroscopic factors of the deuteron cluster are obtained by normalizing the experimental cross section to the theoretical computation. Consistent spectroscopic factors in comparison to shell-model expectations are obtained for transitions involving the orbital angular momentum L = 0 of the cluster. The present work demonstrates that the (p, pd) reactions at 226 MeV as a spectroscopic tool have an advantage in examining spectroscopic aspects of deuteron clustering and the mechanism to form a proton-neutron pair in the spin triplet state with a negligible interference of final state interactions and refraction effects.
Authors
- M. Dozono (ORCID: https://orcid.org/0000-0002-0891-4283)
- K. Yoshida (ORCID: https://orcid.org/0000-0002-0319-8214)
- K. Miki (ORCID: https://orcid.org/0000-0001-8067-9882)
- S. Umemoto
- S. Ota (ORCID: https://orcid.org/0000-0001-8855-4785)
- S. Ogio
- K. I. Hahn (ORCID: https://orcid.org/0000-0002-9250-6484)
- Y. Q. Li
- T. Furuno (ORCID: https://orcid.org/0000-0002-1733-8353)
- Xuan Wang (ORCID: https://orcid.org/0000-0002-5173-2610)
- Sunji Kim
- D. S. Ahn (ORCID: https://orcid.org/0000-0001-8572-0821)
- Fumitaka Endo
- N. Aoi
- T. Kawabata (ORCID: https://orcid.org/0000-0002-7014-2421)
- E. Ideguchi (ORCID: https://orcid.org/0000-0002-7424-9664)
- Yoshiki Chazono (ORCID: https://orcid.org/0009-0005-7802-6336)
- Jichao Zhang (ORCID: https://orcid.org/0000-0003-3855-4378)
- S. Kawase (ORCID: https://orcid.org/0000-0001-5720-108X)
- D. Beaumel
- Riku Matsumura
- M. Petri
- J. Zenihiro (ORCID: https://orcid.org/0000-0001-5917-7677)
- Koki YASUMURA
- Junki Tanaka (ORCID: https://orcid.org/0000-0001-6616-8736)
- R. Gernhäuser (ORCID: https://orcid.org/0000-0003-1778-4262)
- G. Oh (ORCID: https://orcid.org/0000-0003-0744-1063)
- Keiko Higuchi
- Y. Matsuda
- Qite Li (ORCID: https://orcid.org/0000-0001-8530-203X)
- Motoki Murata (ORCID: https://orcid.org/0009-0001-2577-6783)
- Y. Kubota (ORCID: https://orcid.org/0000-0003-3683-0500)
- Taeksu Shin
- Keita Kawata
- Takayuki Yano
- M. Khandelwal (ORCID: https://orcid.org/0009-0009-1846-8668)
- Matthew Whitehead
- Nikhil Mozumdar
- Y Maeda
- Tomoya Nakada
- Katsuhide Itsuno
- Byungsik Hong
- Futa Saito
- Ryota Iwasaki
- Zaihong Yang
- Azusa Inoue
- Yifan Lin
- Mingyu Kim
- Yohei Sasagawa
- Yuto Hijikata
- Ryosuke Yoshida
- Hideya Sonoda
- Nobuhiro Yamasaki
- Shunpei Yamazaki
- Maoto Mitsui
- Yumaro Suzuki
- Ryotaro Tsuji
- Hide Nakama
- Jiawei Bian
- Ryo Kato
- Riku Yamamoto
- Fumiya Furukawa
- Fengyi Chen
- Kaijie Zhou
- J Cai
- Takafumi Sato
- Taichi Miyagawa
- Cheng Wang
- Jongwon Hwang
- Atsushi Tamii
- Wenhao Guo
- CheongSoo Lee
- Tomohiro Uesaka
- Serge Franchoo
- Hiroaki Shibakita
- Stefan Typel
- Yuya Honda
- Soki Sakajo
- Shoya Ogawa
- Stefanos Paschalis
- Kazuyuki Ogata
- Thomas Pohl
- Taiki Sugiyama
- Nobuyuki Kobayashi
- Gen Ikemizu
Institutions
- Darmstadt University of Applied Sciences (DE)
- University of Fukui (JP)
- University of Miyazaki (JP)
- Kyushu University (JP)
- Pioneer (United States) (US)
- Konan University (JP)
- GSI Helmholtz Centre for Heavy Ion Research (DE)
- University of Oslo (NO)
- Korea University (KR)
- Tohoku University (JP)
- Peking University (CN)
- Japan Radioisotope Association (JP)
- Kyoto University (JP)
- Miyazaki Gakuen Junior College (JP)
- Technische Universität Darmstadt (DE)
- Institute for Basic Science (KR)
- Toneyama National Hospital (JP)
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR)
- RIKEN Nishina Center (JP)
- University of York (GB)
- Technical University of Munich (DE)
- Saitama University (JP)
- The University of Osaka (JP)
Publication Details
- Journal
- Progress of Theoretical and Experimental Physics
- Published
- 2026-03-07
- DOI
- https://doi.org/10.1093/ptep/ptag046
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00