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Polarization measurement in pion-nucleon charge exchange π+n ↑ → π0p at 6GeV/c

Иэмерение поляриэации в процессе пион-нуклонной переэарядки π−n ↑ ⇒ π0p при 6ГзВ/с

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Il Nuovo Cimento A (1971-1996)

Summary

The polarization in pion-nucleon charge exchange was measured at 6 GeV/c incident momentum for 0.1 (GeV/c)2 < |t| < 1.6 (GeV/c)2. Using the channel π+ n ↑ → π0p allowed precise measurement of the recoil proton for good rejection of inelastic events. The results are compared with previous experiments using channel π−p ↑ with or without detection of the recoil neutron.

Riassunto

È stata misurata la polarizzazione nello scambio di carica tra pione e nucleone ad un impulso incidente di 6 GeV/c per 0.1(GeV)2 < |t| < 1.6(GeV/c)2. Usando il canale π+n ↑ → π0p si è arrivati ad una misurazione precisa del protone di rinculo per una buona reiezione di eventi anelastici. Si confrontano i risultati con gli esperimenti precedenti usando il canale π−p ↑ con o senza la rivelazione del neutrone di rinculo.

Реэюме

Иэмеряется поляриэация в процессе пион-нуклонной переэарядки при начальном импульсе 6ГзВ/с для 0.1 |t| <1.6 (ГзВ/с)2. Испольэование канала π+n ↑ ⇒ π0p поэволяет точно иэмерить протон отдачи для отбрасывания неупругих событий. Полученные реэультаты сравниваются с предыдушими зкспериментами с испольэованием канала π−p ↑ c или беэ детектирования нейтрона отдачи.

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Author notes

  1. M. Fujisaki

    Present address: AEI Industries, Tokyo, Japan

  2. M. Babou

    Present address: GIXI Ingénierie et Informatique, Paris, France

  3. C. F. Hwang

    Present address: Los Alamos Scientific Laboratory, Los Alamos, USA

  4. A. Itano

    Present address: National Institute of Radiological Sciences, Chiba, Japan

Authors and Affiliations

  1. Départment de Physique des Particules Elémentaires, CEN-Saclay, France

    M. Fujisaki, A. de Lesquen, M. Babou, J. Bystricky, G. Cozzika, T. Dobrowolski, Y. Ducros, A. Gaidot, C. F. Hwang, A. Itano, F. Khantine-Langlois, F. Lehar, J. C. Raoul, L. van Rossum & G. Souchère

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  1. M. Fujisaki
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  2. A. de Lesquen
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  3. M. Babou
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  4. J. Bystricky
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  5. G. Cozzika
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  6. T. Dobrowolski
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  7. Y. Ducros
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  8. A. Gaidot
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  9. C. F. Hwang
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  10. A. Itano
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  11. F. Khantine-Langlois
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  12. F. Lehar
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  13. J. C. Raoul
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  14. L. van Rossum
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  15. G. Souchère
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Fujisaki, M., de Lesquen, A., Babou, M. et al. Polarization measurement in pion-nucleon charge exchange π+n ↑ → π0p at 6GeV/c. Nuov Cim A 99, 395–404 (1988). https://doi.org/10.1007/BF02733829

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  • DOI: https://doi.org/10.1007/BF02733829

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