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Final states with a visible \(\bar K\) 0 in Kd interactions at 3.4 GeV/c

Конечные состояния с видимым \(\bar K\){su0} в К d вэаимодействиях при 3.4 ГзВ/св К d вэаимодействиях при 3.4 ГзВ/с

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Il Nuovo Cimento A (1971-1996)

Summary

Kd interactions at 3.4 GeV/c have been investigated for the neutron target and coherent deuteron reactions in which a \(\bar K\) 0-meson is produced. The cross-sections, effective masses, and angular distributions are presented. The dominant feature for all final states is the significant production of the K*(890). The spin-density matrices of the K*(890) and Δ(1238) for the \(\bar K\) 0πn final state indicate that a vector-meson exchange is an important mechanism.

Riassunto

Si sono studiate le interazioni Kd a 3.4 GeV/c per il bersaglio neutronico e le reazioni deuteroniche coerenti in cui si produce un mesone \(\bar K\) 0. Si presentano le sezioni d’urto, le masse effettive e le distribuzioni angolari. La caratteristica predominante di tutti gli stati finali è la significativa produzione di K*(890). Le matrici di densità di spin del K*(860) e del Δ(1238) per lo stato finale \(\bar K\) 0πn indicano che lo scambio di un mesone vettoriale è un meccanismo importante.

Реэюме

Были исследованы Kd вэаимодействия при 3.4 ГзВ/с для нейтронной мищени и когерентных дейтронных реакций, в которых рождается \(\bar K\) 0-меэон. Приводятся поперечные сечения, зффективные массы и угловые распределения. Главная особенность для всех конечных состояний состоит в эначительном рождении K*(890). Матрицы спиновой плотности К*(890) и Д(1238) для конечного состояния \(\bar K\) 0πn укаэывают, что обмен векторным меэоном представляет важный механиэм реакций,

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Work supported in part by National Science Foundation.

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Eckert, R.R., Kwak, N., Nicholas, M. et al. Final states with a visible \(\bar K\) 0 in Kd interactions at 3.4 GeV/c. Nuov Cim A 7, 605–631 (1972). https://doi.org/10.1007/BF02734215

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