Summary
A method is described in which the measurement of scattering of tracks at the end of their range is carried out on sets of cells of varying length, chosen so that the second difference of the sagitta remains constant. This permits the measurements to be made always at the optimum cell length and eliminates the inconveniences and inaccuracies of the methods in which the track is broken into several sections for measurement. The mass values of a series of K and J-particles have been determined, together with those of a group of protons which serves as calibration.
Riassunto
Si descrive un metodo col quale la misura dello scattering delle tracce a fine range si esegue su gruppi di celle di lunghezza variabile, scelte in modo che la seconda differenza della saetta rimanga costante. Ciò permette di eseguire la misura sempre allalunghezza più favorevole della cella ed elimina le inesattezze e gli inconvenienti dei metodi in cui la traccia è divisa, per l'esecuzione della misura, in diverse sezioni. I valori delle masse di una serie di particelle K e J sono stati determinati, per confronto, assieme a quelli di un gruppo di protoni.
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This method, developed independently at the laboratories of Brussels and Bombay was presented as a joint communication at the Congress on Cosmic Rays at Bagnères de Bigorre, July 1953.
Traduzione a cura della Redazione.
An erratum to this article is available at http://dx.doi.org/10.1007/BF02820378.
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Dilworth, C., Goldsack, S.J. & Hirschberg, L. Determination of the mass of slow particles by the constant sagitta method. Nuovo Cim 11, 113–126 (1954). https://doi.org/10.1007/BF02782909
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DOI: https://doi.org/10.1007/BF02782909