Probing high-momentum components in $^{16}$O via zero-degree $(p,d)$ cross-section ratios

FRS Experiment Collaboration; X. Wang; H. J. Ong; S. Terashima; I. Tanihata; Y. K. Tanaka; H. Geissel; N. Aoi; Y. Ayyad; J. Benlliure; F. Farinon; H. Fujioka; J. Gellanki; C. L. Guo; E. Haettner; W. L. Hai; M. N. Harakeh; C. Hornung; K. Itahashi; R. Janik; N. Kalantar-Nayestanaki; R. Knöbel; N. Kurz; K. Miki; I. Mukha; T. Myo; T. Nishi; D. Y. Pang; S. Pietri; A. Prochazka; C. Rappold; M. P. Reiter; J. L. Rodríguez-Sánchez; C. Scheidenberger; H. Simon; B. Sitar; P. Strmen; B. H. Sun; K. Suzuki; H. Weick; J. S. Winfield; X. D. Xu; J. W. Zhao

arXiv · 2610.13243

Probing high-momentum components in $^{16}$O via zero-degree $(p,d)$ cross-section ratios

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Abstract

The $^{16}$O$(p,d)^{15}$O reaction was measured at zero degrees for incident-proton energies of 403, 604, 907 and 1209 MeV. Cross-section ratios for the 6.18-MeV (3/2$^-$) and 5.24-MeV (5/2$^+$) excited-state transitions, normalized to the ground-state transition, were previously reported in Wang et al., Phys. Lett. B 879, 140563 (2026), doi:10.1016/j.physletb.2026.140563, together with their implications for high-momentum neutron components in $^{16}$O. The present work extends that study by providing additional experimental and data-analysis details, and by reporting for the first time the ratio $R_{7.3}$, defined as the cross section populating the 7.28-MeV (7/2$^+$) state relative to that for the ground state. The positive-parity state ratios exhibit a pronounced momentum dependence, consistent with representative variational Monte Carlo trends.

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FRS Experiment Collaboration, X. Wang, H. J. Ong, S. Terashima, I. Tanihata, Y. K. Tanaka, H. Geissel, N. Aoi, Y. Ayyad, J. Benlliure, F. Farinon, H. Fujioka, J. Gellanki, C. L. Guo, E. Haettner, W. L. Hai, M. N. Harakeh, C. Hornung, K. Itahashi, R. Janik, N. Kalantar-Nayestanaki, R. Knöbel, N. Kurz, K. Miki, I. Mukha, T. Myo, T. Nishi, D. Y. Pang, S. Pietri, A. Prochazka, C. Rappold, M. P. Reiter, J. L. Rodríguez-Sánchez, C. Scheidenberger, H. Simon, B. Sitar, P. Strmen, B. H. Sun, K. Suzuki, H. Weick, J. S. Winfield, X. D. Xu, J. W. Zhao. 2026-10-09. Probing high-momentum components in $^{16}$O via zero-degree $(p,d)$ cross-section ratios. https://arxiv.org/abs/2610.13243

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