Article

Strangeness production at low Q2 in deep-inelastic ep scattering at HERA

Universiteit Antwerpen Antwerpen Belgium
European Physical Journal C (Impact Factor: 5.44). 10/2008; 61(2):185-205. DOI: 10.1140/epjc/s10052-009-0995-1

ABSTRACT The production of neutral strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector
at HERA. The measurements are made in the phase space defined by the negative four-momentum transfer squared of the photon
2<Q
2<100 GeV2 and the inelasticity 0.1<y<0.6. The K

s
0 and

\varLambda([`\varLambda])\varLambda(\bar{\varLambda})
production cross sections and their ratios are determined. K

s
0 production is compared to the production of charged particles in the same region of phase space. The Λ–

[`\varLambda]\bar{\varLambda}
asymmetry is also measured and found to be consistent with zero. Predictions of leading order Monte Carlo programs are compared
to the data.

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