In-medium NN interactions and nucleon and meson masses studied with nucleon knockout reactions

T. Noro, H. Akimune, H. Akiyoshi, I. Daito, H. Fujimura, K. Hatanaka, F. Ihara, T. Ishikawa, M. Ito, M. Kawabata, T. Kawabata, Y. Maeda, N. Matsuoka, S. Morinobu, M. Nakamura, E. Obayashi, A. Okihana, K. Sagara, H. Sakaguchi, H. TakedaT. Taki, A. Tamii, K. Tamura, Hirohito Yamazaki, H. Yoshida, M. Yoshimura, M. Yosoi

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Spin observables have been measured for (p, 2p) reactions aiming at studying medium effects on NN interactions in nuclear field. Observed strong density-dependent reduction of the analyzing power is consistent with a model calculation where reduction of nucleon and meson masses are taken into account. On the other hand, calculations with g-matrices in the Shrödinger framework does not predict the reduction. The spin-transfer coefficients, which data are not reproduced by the model calculation, are found to be sensitive to reduction rate of each meson mass and have a possibility to test scaling lows in mass reductions.

Original languageEnglish
Pages (from-to)517c-520c
JournalNuclear Physics A
Issue number1-2
Publication statusPublished - 2000 Jan 31
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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