The inclusive reactions $p+A\to p+X$ are studied in the framework of an evolution process in momentum degradation. All measured inclusive cross sections between C and Pb for all $x$ values can be understood in terms of one basic degradation function which involves only one adjustable parameter. The inferred degradation length in nuclear matter is 17 fm.

• Received 28 November 1983

DOI:https://doi.org/10.1103/PhysRevLett.52.492