Effective pion mass in the nuclear medium deduced from deeply bound pionic states in 207Pb

T. Yamazaki, R. S. Hayano, K. Itahashi, K. Oyama, A. Gillitzer, H. Gilg, M. Knülle, M. Münch, P. Kienle, W. Schott, W. Weise, H. Geissel, N. Iwasa, G. Münzenberg, S. Hirenzaki, H. Toki

研究成果: Article査読

84 被引用数 (Scopus)

抄録

Deeply bound Is states of π- as well as the 2p states in 207Pb were identified in the 208Pb(d,3He) reaction at 600 MeV. The binding energies of π- in 207Pb have been determined as Sπ(2p) = 5.31 ± 0.09 MeV and Bπ(1s) = 7.1 ± 0.2 MeV by comparing the observed Q-value spectrum with theory. These values indicate that the effective π- mass increases by 19.3 ± 2.7 MeV at the center of the 207Pb nucleus.

本文言語English
ページ(範囲)246-251
ページ数6
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
418
3-4
DOI
出版ステータスPublished - 1998 2 5
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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