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Experimental study of polarization in the reaction\(\bar pp \to \bar pp\) at 0.7 GeV/cat 0.7 GeV/c

Экспериментальное исследование поляризации в реакции\(\bar pp \to \bar pp\) при 0.7 ГэВ/с

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Il Nuovo Cimento A (1965-1970)

Summary

The polarization for the\(\bar pp\) elastic scattering was measured as a function of the centre-of-mass angle of scattering between 17° and 90° at the average incident momentum of 0.7 GeV/c by using doublescattering events in a bubble chamber. The average value of the polarization was found to be 0.23 ± 0.05. The angular dependence of the polarization obtained in this experiment was interpreted by the strong absorptive potential model for\(\bar {\mathcal{N}}{\mathcal{N}}\) interactions recently proposed.

Riassunto

È stata misurata la polarizzazione per lo scattering elastico\(\bar pp\) in funzione dell’angolo del centro di massa dello scattering tra 17° e 90° ad un impulso medio incidente di 0.7 GeV/c usando eventi a scattering doppio nella camera a bolle. Si è trovato che il valor medio della polarizzazione è 0.23 ± 0.05. La dipendenza angolare della polarizzazione ottenuta in questo esperimento è stata interpretata mediante il modello del potenziale di assorbimento forte per le interazioni\(\bar {\mathcal{N}}{\mathcal{N}}\) recentemente proposto.

Резюме

Измеряется поляризация для рр упругого рассеяния, как функция угла рассеяния в системе центра масс в области от 17° до 90° при среднем начальном импульсе 0.7 ГэВ/с, используя события двойного рассеяния в пузырьковой камере. Полученная средняя величина поляризации составляет 0.23 ±0.05. Угловая зависимость поляризации, обнаруженная в этом эксперименте, интерпретируется с помощью модели сильного абсорбционного потенциала, недавно предложенной для NN взаимодействий.

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Kimura, M., Takanaka, M., Hamatsu, R. et al. Experimental study of polarization in the reaction\(\bar pp \to \bar pp\) at 0.7 GeV/cat 0.7 GeV/c. Nuov Cim A 71, 438–444 (1982). https://doi.org/10.1007/BF02898938

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  • DOI: https://doi.org/10.1007/BF02898938

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