par Aktas, Adil;Collard, Caroline 
;Favart, Laurent ;Janssen, Xavier ;Marage, Pierre ; [et al.]
Référence European Physical Journal C. Particles and Fields, 36, 4, page (441-452)
Publication Publié, 2004
;Favart, Laurent ;Janssen, Xavier ;Marage, Pierre ; [et al.]Référence European Physical Journal C. Particles and Fields, 36, 4, page (441-452)
Publication Publié, 2004
Article révisé par les pairs
| Résumé : | Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x ≈ 4 · 10 -5 which give rise to high transverse momentum π°-mesons are studied with the Hi experiment at HERA. The inclusive cross section for π°-mesons produced at small angles with respect to the proton remnant (the forward region) is presented as a function of the transverse momentum and energy of the π° and of the four-momentum transfer Q 2 and Bjorken-x. Measurements are also presented of the transverse energy flow in events containing a forward π°-meson. Hadronic final state calculations based on QCD models implementing different parton evolution schemes are confronted with the data. © Springer-Verlag / Società Italiana di Fisica 2004. |
