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Measurement of K-S(0), Lambda and (Lambda)over-bar production at HERA
Journal article   Peer reviewed

Measurement of K-S(0), Lambda and (Lambda)over-bar production at HERA

S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, M. C. K. Mattingly, M. Jechow, …
The European physical journal. C, Particles and fields, Vol.51(1), pp.1-23
06/01/2007
DOI: 10.1140/epjc/s10052-007-0299-2
url
https://arxiv.org/pdf/hep-ex/0612023View
Open Access

Abstract

The production of the neutral strange hadrons K-S(0), Lambda and (Lambda) over bar has been measured in ep collisions at HERA using the ZEUS detector. Cross sections, baryon-to-meson ratios, relative yields of strange and charged light hadrons, Lambda ((Lambda) over bar) asymmetry and polarization have been measured in three kinematic regions: Q(2) > 25 GeV2; 5 < Q(2) < 25 GeV2; and in photoproduction (Q(2) similar or equal to 0). In photoproduction the presence of two hadronic jets, each with at least 5 GeV transverse energy, was required. The measurements agree in general with Monte Carlo models and are consistent with measurements made at e(+)e(-) colliders, except for an enhancement of baryon relative to meson production in photoproduction.
Physical Sciences Physics Physics, Particles & Fields Science & Technology

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