Eur. Phys. J. C (2004) 36: 441-452
https://doi.org/10.1140/epjc/s2004-01983-1

experimental physics

Forward production and associated transverse energy flow in deep-inelastic scattering at HERA

Abstract

Deep-inelastic positron-proton interactions at low values of Bjorken-x down to which give rise to high transverse momentum -mesons are studied with the H1 experiment at HERA. The inclusive cross section for -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 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 -meson. Hadronic final state calculations based on QCD models implementing different parton evolution schemes are confronted with the data.