Abstract
Results on interactions in flight, elastic scatterings and decays of K- mesons in nuclear emulsion in the energy interval between 5 and 130 MeV are given. A total K--path of 112 m was followed. 11 K- -proton elastic scatterings and 5 K- -(free) proton absorptions were found. The differential cross-section for elastic scatterings by complex nuclei for the two average energies of 45 and 100 MeV are listed. The mean free path for star production in the energy interval from 20 to 130 MeV is (27.7 ± 1.4) cm. The secondary tracks of the stars were, as far as possible, identified. 3 K- reemissions were observed. Finally the K- -lifetime and some identified decays are discussed. From one of the two Τ--mesons observed we got a mass value of (966.0 ± 1.8) me. One possible example of the Kπ2-decay mode was found.
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