Summary
With the use of a high-resolution magnetic spectrometer, the ranges of pions in nuclear emulsions have been measured at two momenta: 78 MeV/c and 90 MeV/c. The pions were produced in the CERN synchrocyclotron. It was found that the ranges of positive and negative pions are equal within ±0.5%. Any possible difference in the rate of energy loss must have saturated at a much lower momentum.
Riassunto
Servendosi di uno spettrometro magnetico ad alta risoluzione, si sono misurati a due impulsi: 78 MeV/c e 90 MeV/c, i percorsi dei pioni nelle emulsioni nucleari. I pioni sono stati prodotti nel sincrociclotrone del CERN. Si è trovato che i percorsi dei pioni positivi e negativi sono uguali entro il ±0.5%. Qualsiasi possibile differenza nell'andamento della perdita di energia si deve essere saturata a un impulso molto minore.
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References
W. H. Barkas, J. N. Dyer andH. H. Heckman:Phys. Rev. Lett.,11, 26 (1963).
R. A. Burnstein, T. B. Day, B. Kehoe, B. Sechi-Zorn andG. A. Snow:Phys. Rev. Lett.,13, 66 (1964).
J. Borggreen, B. Elbek andL. Perch Nielsen:Nucl. Inst. and Meth.,24, 1 (1963).
H. Cramér:Mathematical Methods of Statistics (Princeton, 1964), p. 456.
W. H. Barkas, W. Z. Osborne, W. G. Simon andF. M. Smith:Fifth International Conference on Nuclear Photography, CERN (Geneva, 1964), vol.2, p. IX–1.
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Ekspong, A.G., Yamdagni, N.K. Rate of energy loss for positive and negative pions. Nuovo Cimento A (1965-1970) 44, 887–895 (1966). https://doi.org/10.1007/BF02719336
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DOI: https://doi.org/10.1007/BF02719336