Summary
The nature of the laboratory momentum spectra of the secondary shower particles from high-energy nuclear interactions (E p ⩾14 GeV) is investigated. By folding the well-established distribution for the transverse momentum,p t , of the secondary shower particles obtained at various primary energies with the differential space angular distributions of shower secondaries, the differential momentum spectrum in the laboratory system is found to be well represented by
It is shown that a power law representation does not fit the whole range of the momentum spectrum. The spectrum obtained utilizing a constant value for the transverse momentum differs appreciably from the above for momenta less than 1 GeV/c.
Riassunto
Si studia la natura degli spettri dell’impulso nel sistema del laboratorio delle particelle secondarie degli sciami prodotti da interazioni nucleari di alta energia (E p ⩾14 GeV). Combinando l’accertata distribuzione dell’impulso trasversale,p t , delle particelle secondarie degli sciami ottenuta a varie energie dei primari con le distribuzioni angolari spaziali differenziali delle particelle secondarie, si trova che lo spettro differenziale degli impulsi nel sistema del laboratorio è ben rappresentato da
Si dimostra che una legge esponenziale non dà una rappresentazione abbastanza approssimata di tutto l’intervallo degli spettri degli impulsi. Gli spettri ottenuti utilizzando un valore costante dell’impulso trasversale differiscono in modo apprezzabile da quello esposto sopra per impulsi inferiori a 1 GeV/c.
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This research was supported (in part) by the Air Force Office of Scientific Research under Grant No. AF-AFOSR 62-32 and by the Atomic Energy Commission.
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Aly, H.H., Kaplon, M.F. & Shen, M.L. The nature of the momentum spectrum of secondary shower particles from high-energy collisions — I. Nuovo Cim 32, 905–918 (1964). https://doi.org/10.1007/BF02733859
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DOI: https://doi.org/10.1007/BF02733859