Effect of tensor interactions in 16O studied via (p,d) reaction

ORAL

Abstract

We report a possible evidence of tensor interactions in $^{16}$O observed via high-momentum (p,d) reaction. We measured the differential cross sections populating the ground states and several low-lying excited states in $^{15}$O. Comparing the ratios of the cross sections for the 5/2$^+$ and the $3/2^-$ excited states to the one for the ground state over a wide range of momentum transfer, we found a marked enhancement of the ratio for the 5/2$^+$ state as compared to that for the $3/2^-$ state. The observation is consistent with large components of high-momentum neutrons in the initial ground-state configurations explainable by the tensor interactions.

*This work was supported in part by Grant-in-Aid Nos. 20244030, 20740163 and 23224008 from Monbukagakusho.

Authors

  • Hooi Jin Ong

    • RCNP, Osaka University
  • Isao Tanihata

    • RCNP, Osaka University
  • Atsushi Tamii

    • RCNP, Osaka University
    • Osaka University
    • Research Center for Nuclear Physics, Osaka University
  • Takayuki Myo

    • Osaka Institute of Technology
  • Kazuyuki Ogata

    • RCNP, Osaka University
  • Mitsunori Fukuda

    • Osaka University
    • Dept. Phys., Osaka Univ.
  • Kiyomi Ikeda

    • RIKEN
  • Daiki Ishikawa

    • RCNP
  • Takahiro Kawabata

    • Kyoto University
    • Department of Physics, Kyoto University
  • Hiroaki Matsubara

    • RCNP, Osaka University
  • Kensaku Matsuta

    • Osaka University
  • Mototsugu Mihara

    • Osaka University
  • Takuma Naito

    • RCNP, Osaka University
  • Daiki Nishimura

    • Tokyo University of Science
  • Yoko Ogawa

    • RCNP, Osaka University
  • Akira Ozawa

    • Tsukuba University
  • Danyang Pang

    • Beihang University
  • Harutaka Sakaguchi

    • RCNP, Osaka University
  • Kimiko Sekiguchi

    • Tohoku University
  • Tomokazu Suzuki

    • RCNP, Osaka University
    • Research Center for Nuclear Physics, Osaka University
  • Manami Taniguchi

    • Nara Women's University
  • Hiroshi Toki

    • RCNP, Osaka University
  • Yusuke Yasuda

    • RCNP, Osaka University
  • M. Yosoi

    • Research Center for Nuclear Physics, Osaka University
    • RCNP, Osaka University
    • Osaka University
  • Juzo Zenihiro

    • RIKEN