静止K吸收形成sigma超核(LS双重态候选粒子的观察)

Intersections Between Particles and Nuclear Physics Pub Date : 2008-05-29 DOI:10.1063/1.34943

Y. Yamazaki, T. Ishikawa, Y. Yamanaka, K. Tanaka, M. Iwasaki, Y. Akiba, S. Ohtake, H. Tamura, M. Nakajima, F. Naito, Takeshi Suzuki, I. Arai, R. Hayano

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摘要

在(CH)n(塑料闪烁体)焦油中的K−反应中检测到的介子在介子动量为- 185 MeV/c时出现了一个尖峰，这表明了Σ+→nπ+衰变。这个峰是P3/2‐P1/2双重态Σ−超核的候选峰。(AIP)

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Formation of sigma hypernuclei from K̄ absorption at rest (observation of a candidate for the LS doublet)

Pions detected from K− reactions in (CH)n (plastic scintillator) tar reveals a sharp peak at a pion momentum ‐185 MeV/c which is indicative of the Σ+→nπ+ decay. This peak is a candidate for a P3/2‐ P1/2 doublet Σ− hypernucleus. (AIP)

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Intersections Between Particles and Nuclear Physics

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