Ξ-Nucleus Potential and (K^-, K^+) Inclusive Spectrum at Ξ^- Production Threshold Region(Nuclear Physics)
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概要
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The (K^-, K^+) Ξ^- production inclusive spectrum is reinvestigated in view of the very weak Ξ-nucleus potential predicted by microscopic calculations with the SU_6 quark-model baryon-baryon interaction. The inclusive spectrum is evaluated by the semiclassical distorted wave (SCDW) method. The explicit comparison of the strength function with that of the Green-function method demonstrates the quantitative reliability of the SCDW approximation. It is presumed that the presently available data at the Ξ production threshold region does not necessarily imply the attractive strength of about 15MeV for the Ξ-nucleus potential in a conventional Woods-Saxon form. Instead, an almost zero potential is preferable.
- 2010-01-25
著者
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KOHNO Michio
Physics Division, Kyushu Dental College
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HASHIMOTO Shintaro
Advanced Science Research Center, Japan Atomic Energy Agency
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Kohno Michio
Physics Division Kyushu Dental College
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Hashimoto Shintaro
Advanced Science Research Center Japan Atomic Energy Agency
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