\(\bar pp\) Annihilation at rest into K L 0 K S 0 π0π0Annihilation at rest into K L 0 K S 0 π0π0
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Investigations of purely neutral final states in\(\bar pp\) annihilation are possible for the first time with the Crystal Barrel detector at LEAR. The high-mass resolution for π0-mesons allows the reconstruction of K S 0 -mesons in their neutral-pion decay. Moreover, non-interacting K L 0 -mesons can be well identified by the measurement of missing energy. Annihilation into the channel K L 0 K S 0 π0π0 proceeds predominantly via the following two-body intermediate states: K1(1400)K0, K1(1270)K0,\(K*\bar K*\),\(K*\bar K^0 \)which can be identified with the h′1 (1380)-meson.
KeywordsPACS 14.40 Mesons and meson resonances PACS 01.30.Cc Conference proceedings
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- M. A. Faessler: these proceedings, p. 2235.Google Scholar