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The Production of\(K^0 \bar K^0 \) Pairs by 10 GeV/c Negative Pions on ProtonsPairs by 10 GeV/c Negative Pions on Protons

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Il Nuovo Cimento (1955-1965)

Summary

On 83 000 photographs from an exposure of the 81 cm Saclay hydrogen bubble chamber to a 10 GeV/e π− beam of the CERN proton synchrotron, 63 events have been found showing a beam interaction in a fiducial region of the chamber and the decay of two neutral kaons from this interaction. The c.m. distributions of all produced particles are given. It was found that nucleons are emitted strongly backwards in the c.m.s. while both kaons show a pronounced forward emission. Pions are emitted with small momenta nearly isotropically. None of the known kaon or nucleon isobars is strongly produced, whereas a peaking of the (K 01 k 01 Q-value is observed at ~ 50 MeV. The average transverse and total c.m. momenta increase with the mass of the produced particles.

Riassunto

Fra 83000 fotografie di un’esposizione della camera a bolle ad idrogeno di 81 cm di Saclay al raggio di π- di 10 GeV/c del protosincrotrone del CERN si sono trovati 63 eventi di interazione del fascio in una regione fiduciaria della camera e il decadimento di due kaoni neutri prodotti in tale interazione. Si dànno le distribuzioni nel c.m. di tutte le particelle prodotte. Si è trovato che i nucleoni sono emessi fortemente all’indietro nel c.m. mentre i due kaoni sono emessi spiccatamente in avanti. I pioni sono emessi con deboli impulsi quasi isotropicamente. Nessuno dei kaoni o nucleoni isobari è prodotto abbondantemente, mentre si osserva un picco del valore diQ per (K 01 K 01 ) a ~ 50 MeV. I momenti medi trasversale e totale aumentano con la massa delle particelle prodotte.

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References

  1. M. I. Soloviev:Proceedings of the 1960 International Conference on High-Energy Physics at Rochester, p. 388.

  2. J. Bartke, R. Budde, W. A. Cooper, H. Filthuth, Y. Goldschmidt- Clermont, G. R. Macleod, A. de Marco, A. Minguzzi-Ranzi, L. Montanet, D. R. O. Morrison, S. Nilsson, Ch. Peyrou, R. Sosnowski, A. Bigi, R. Carrara, C. Fran- zinetti, I. Mannelli, G. Brautti, M. Ceschia andL. Chersovani:Proceedings of the 1962 International Conference on High-Energy Physics at Rochester, p. 402;Nuovo Cimento,24, 876 (1962).

  3. T. Ferbel andH. Taft:Nuovo Cimento,28, 1214 (1963).

    Article  Google Scholar 

  4. V. A. Belyakov, Wang Yung-Chang, V. I. Veksler, N. M. Viryasov, Du Yuan-cai, Kim Hi In, E. N. Kladnitskaya, A. A. Kuznetsov, A. Mikhul, Nguyen Dinh-Tu, V. N. Penev, E. S. Sokolova andM. I. Soloviev:Proceedings of the 1962 International Conference on High-Energy Physics at CERN, p. 261, 336.

  5. H. H. Bingham, M. Bloch, D. Drijard, A. Minguzzi-Ranzi andM. Nicolić:Proceedings oft he 1962 International Conference on High-Energy Physics at CERN, p. 240 (see alsoNuovo Cimento,29, 339 (1963)).

  6. A. Bigi, S. Brandt, R. Carrara, W. A. Cooper, A. de Marco, G. R. Macleod, Ch. Peyrou, R. Sosnowski andA. Wroblewski:Proceedings of the 1962 Interna- tional Conference on High-Energy Physics at CERN, p. 237.

  7. A. Bigi, S. Brandt, A. de Marco-Trabucco, Ch. Peyeou, R. Sosnowski andA. Wroblewski:Nuovo Cimento,33, 1265 (1964).

    Article  Google Scholar 

  8. A. Kernan, R. Böck andW. G. Moorhead: Internal CERN/DD report (1961).

  9. C. Dilworth, D. R. O. Morrison andG. Mambriani:Nuovo Cimento,32, 1432 (1964).

    Article  Google Scholar 

  10. S. Brandt: CERN Internal Note DD/EXP/62/25; andS. Brandt:Dissertation, Bonn University (1963).

  11. The cross-section calculations were based on the value of the total cross-section Σπ-gr = (26.5±0.5) mb at 10 GeV/c as given byG. von Dardel et al.:Phys. Rev. Lett,8, 173 (1962).

    Article  ADS  Google Scholar 

  12. L. Bertanza, B. B. Culwick, K. W. Lai, I. S. Mitra, N. P. Samios, A. M. Thorndike, S. S. Yamamoto andR. M. Lea:Phys. Rev.,130, 786 (1963).

    Article  ADS  Google Scholar 

  13. G. Alexander, O. I. Dahl, L. Jacobs, G. R. Kalbfleisch, D. H. Miller, A. Rittenberg, J. Schwartz andG. A. Smith:Phys. Rev. Lett.,9, 460 (1962).

    Article  ADS  Google Scholar 

  14. A. R. Erwin, G. A. Hoyer, R. A. March, W. D. Walker andT. P. Wangler:Phys. Rev. Lett.,9, 34 (1962).

    Article  ADS  Google Scholar 

  15. L. Bertanza, V. Brisson, P. L. Connolly, E. L. Hart, I. S. Mittra, G. C. Moneti, K. E. Rau, N. P. Samios, I. O. Skillicorn, S. S. Yamamoto, M. Goldberg, L. Gray, J. Leitner, S. Lichtman andJ. Westgard:Phys. Rev. Lett.,9, 180 (1962).

    Article  ADS  Google Scholar 

  16. P. L. Connolly, E. L. Hart, K. W. Lai, G. London, G. C. Moneti, R. R. Rau, N. P. Samios, I. O. Skillicorn, S. S. Yauamoto, M. Goldberg, M. Gundzik, J. Leitner andS. Lichtman:Phys. Rev. Lett.,10, 371 (1963).

    Article  ADS  Google Scholar 

  17. P. Schlein, W. E. Slater, L. T. Smith, D. H. Stork andH. K. Ticho:Phys. Rev. Lett,10, 368 (1963).

    Article  ADS  Google Scholar 

  18. Z. Koba andR. Sosnowski: to be published.

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Authors and Affiliations

  1. CERN, Geneva

    A. Bigi, S. Brandt, A. de Marco-Trabucco, Ch. Peyrou, R. Sosnowski & A. Wróblewski

Authors
  1. A. Bigi
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  2. S. Brandt
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  3. A. de Marco-Trabucco
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  4. Ch. Peyrou
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  5. R. Sosnowski
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  6. A. Wróblewski
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Additional information

University of Pisa.

Now at University of Torino.

On leave from the Institute for Nuclear Eesearch, Warsaw.

On leave from the Institute of Experimental Physics, University of Warsaw.

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Bigi, A., Brandt, S., de Marco-Trabucco, A. et al. The Production of\(K^0 \bar K^0 \) Pairs by 10 GeV/c Negative Pions on ProtonsPairs by 10 GeV/c Negative Pions on Protons. Nuovo Cim 33, 1249–1264 (1964). https://doi.org/10.1007/BF02749461

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