E. V. Karpechev | Searcharxiv

arXiv2026

Quark-Parton Fusion and the Scaling of Hadron Production at the LHC

Hadron production, including pions, kaons and antiprotons, in proton-proton collisions at an energy of 7 TeV at the ALICE facility has been studied. For the data analysis, a generalised parton model was used, which takes into account the interaction of two partons in colliding beams and the production of new particles. Considering the effects of parton fusion and compound state formation results in a scaling dependence of the hadron production cross sections of different species.

hep-ex↗

arXiv2013

Emission of forward neutrons by 158A GeV indium nuclei in collisions with Al, Cu, Sn and Pb

The cross sections of forward emission of one, two and three neutrons by 158A GeV 115In nuclei in collisions with Al, Cu, Sn and Pb targets are reported. The measurements were performed in the framework of the ALICE-LUMI experiment at the SPS facility at CERN. Various corrections accounting for the absorption of beam nuclei and produced neutrons in target material and surrounding air were introduced. The corrected cross section data are compared with the predictions of the RELDIS model for electromagnetic fragmentation of 115In in ultraperipheral collisions, as well as with the results of the abrasion-ablation model for neutron emission in hadronic interactions. The measured neutron emission cross sections well agree with the RELDIS results, with the exception of In-Al collisions where the measured cross sections are larger compared to RELDIS. This is attributed to a relatively large contribution of hadronic fragmentation of In on Al target with respect to electromagnetic fragmentation, on the contrary to similar measurements performed earlier with 30A GeV 208Pb colliding with Al.

nucl-ex↗