The Lowest Subprocess Model of Large p_T Hadron Productions

概要

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A counting rule we have proposed gives the same power behaviours of two-body reactions and of form factors as the dimensional counting rule in so far as the baryon B and the meson M are concerned, where the composite structure, B=qqqJ and M=qq^^-, is assumed, J denoting the conserved junction of three strings linked to the urbaryons q. Our rule leads to the p_T^<-8> behaviour of the single-particle inclusive cross section ρ≡Edσ/dp^3 at large p_T, when the hard subprocess is the lowest rearrangement of the constituent q and J(qq→qq, qJ→qJ, JJ→JJ, etc.). Taking this lowest subprocess, we examine leading behaviours of ρ〜p_T^<-8>(1-x_T)^m with x_T≡2p_T/√<s> at x_T〜1, particle ratios among various single particle inclusive cross sections and two-particle correlations. The overall agreement with experiment is found. We have ρ(pp→π^0X)/ρ(π^±p→π^0X)〜(1-x_T)^2. Various charge ratios such as ρ(pp→π^+X)/ρ(pp→π^-X)>2 at x_T〜1 are reproduced when the distribution and fragmentation functions which give characteristic aspects of deep inelastic lepton-hadron reactions are adopted. Energy dependence of the two-particle correlations, that differs between the same and opposite sides, is explained.
理論物理学刊行会の論文
1977-08-25