Strangeness Production in Deep-Inelastic ep Scattering at HERA §

Khurelbaatar Begzsuren*
The Institue of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia

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© Khurelbaatar Begzsuren; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the The Institue of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia; Tel: 49 40 89984215, Fax: 49 40 89983093; E-mail:
§ Presented at the Low x workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel.


The production of neutral strange hadrons is studied using deep-inelastic events measured with the H1 detector at HERA. The measurements of and productions are made in two regions of phase space defined by the negative four-momentum transferred squared of the photon, 7 < Q2 < 100GeV2 and the inelasticity 0.1 < y < 0.6 for the and 145 < Q2 < 20000GeV2 and 0.2 < y < 0.6 for the Λ . and production cross sections are determined. Differential ratios of production to charged hadron production are measured. Differential yields per event are determined. The Λ − asymmetry is measured and found to be consistent with zero. Predictions of leading order Monte Carlo programs are compared to data.

PACS number(s): 04.40.Nr, 04.70.Bw, 11.27.+d.

Keywords: Quantum chromodynamics, strange quarks.