Abstract
A dynamical model of hadron beam jets in high energy hadron-hadron collisions at smallpT is presented on the basis of the assumptions that (i) a meson is composed of a constituent quarkq and an antiquark\(\bar q\), while a baryon is composed ofq andqq (diquark), and (ii) mesons, baryons and antibaryons are emitted via the cascade mechanism ofq andqq. These assumptions lead to a simple treatment of meson, baryon and antibaryon productions from hardon beam jets. A set of coupled integral equations for\(\bar q\) andqq fragmentation functions is solved in moment space and converted into the longitudinal distribution. Inclusive spectra of hadrons directly produced from beam jets are compared with data.
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