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200 GeV Proton Interactions in Nuclear Emulsion

 

作者: J. He´bert,   C. J. D. He´bert,   H. Areti,   P. M. Patel,   G. Hartner,   M.‐A. Vincent,   G. Baumann,   R. Devienne,   J. Lory,   C. Meton,   D. Schune,   B. Willot,   B. Charquet,   Tsai‐Chu¨,   P. Cu¨er,   B. Kaiser,   J. P. Massue´,   G. Baroni,   S. Di Liberto,   S. Petrera,   G. Romano,   J. Cohen,   E. M. Friedla¨nder,   A. Marin,   M. Marcu,   R. Nitu,   J. Otterlund,   A. Van Ginneken,   O. Adamovic,  

 

期刊: AIP Conference Proceedings  （AIP Available online 1973）
卷期: Volume 12, issue 1  

页码: 131-140

 

ISSN:0094-243X

 

年代: 1973

 

DOI:10.1063/1.2947071

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The mean‐free‐path for inelastic interactions of 200 GeV protons in nuclear emulsion has been measured using the techniques of along‐the‐track scanning and area scanning. The results obtained are, respectively,&lgr;inel = 35.3 ± 1.0 cmand&lgr;inel = 33.1 ± 1.5 cm. The average charged multiplicities have been found to be⟨ns⟩ = 8.2 ± 0.2for ‘white’ stars and⟨ns⟩ = 12.9 ± 0.15for all events. A plot of nsversus Nh(where Nhis the number of black and grey tracks) shows a linear relation over the region0 ≤ Nh ≤ 25. The Castagnoli method applied to ‘white’ stars overestimates the C.M. energy by ∼ 40%, however, for stars withNh ≥ 1, there is good agreement.

 

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