In this paper, some results on inclusive γ and π0 spectra in π-p and π-12C interactions at 40 GeV/c are reported. It is shown that there is no factorization of the structure function f(q⊥, x) in π-p→γ + anything reactions for q⊥≤0.4 GeV/c and |x|≤0.16. The π0 meson longitudinal momentum spectrum in the cms is obtained by applying the method of statistical regularization to the measured γ spectrum. In the range |x|≤0.02, Nπ+ = Nπ- = Nπ0 within the error limits (±7%). The inclusive γ spectra in π-p and π-12C interactions indicate that the normalized structure function is the same for both reactions over the central and the π- meson fargmentation regions.
ASJC Scopus subject areas
- Nuclear and High Energy Physics