Enhanced Λ Λ production near threshold in the 12C(K-, K+) reaction KEK-PS E224 Collaboration

J. K. Ahn, S. Aoki, K. S. Chung, M. S. Chung, H. En'yo, T. Fukuda, H. Funahashi, Y. Goto, A. Higashi, M. Ieiri, T. Iijima, M. Iinuma, K. Imai, Y. Itow, J. M. Lee, S. Makino, A. Masaike, Y. Matsuda, Y. Matsuyama, S. MiharaC. Nagoshi, I. Nomura, I. S. Park, N. Saito, M. Sekimoto, Y. M. Shin, K. S. Sim, R. Susukita, R. Takashima, F. Takeutchi, P. Tlustý, S. Weibe, S. Yokkaichi, K. Yoshida, M. Yoshida, T. Yoshida, S. Yamashita

研究成果: Contribution to journalArticle査読

48 被引用数 (Scopus)


Enhanced production of Λ Λ pairs, above levels predicted by a two-step process model, has been observed near threshold (in the mass range 2.23-2.26 GeV/c2) in the 12C(K-, K+) reaction at 1.66 GeV/c using a scintillating fiber target. The differential cross section for Λ Λ production in the momentum region 0.95 ≤ pK+ ≤ 1.3 GeV/c averaged over the range 2.3° ≤ θK+ ≤ 14.7° was found to be 7.6 ± 1.3 ± 0.9 μb/sr, and that for the enhancement was found to be approximately 3 μb/sr.

ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
出版ステータス出版済み - 12 24 1998

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学


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