The effect of uu diquark suppression in proton splitting in Monte Carlo event generators

Abstract

Monte Carlo event generators assume that protons split into (uu)-diquarks and d-quarks with a probability of 1/3 in strong interactions. It is shown in this paper that using a value of 1/6 for the probability allows one to describe at a semi-quantitative level the NA49 Collaboration data for $p+p\to p+X$ reactions at 158 GeV/c. The Fritiof (FTF) model of Geant4 was used to simulate the reactions. The reduced weight of the (uu)-diquarks in protons is expected in the instanton model.

arXiv comment2 pages, weight of uu-diquark in protons has to be about 1/6 in Monte Carlo event generators

References in corpus (8)

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• Inclusive production of protons, anti-protons and neutrons in p+p collisions at 158 GeV/c beam momentum
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Cited by in corpus (2)

• Particle Production via Strings and Baryon Stopping within a Hadronic Transport Approach
• Performance of Monte Carlo event generators of pp collisions at NICA energies