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First measurements of Λ and [formula omitted]hyperons in elementary electroproduction at MAMI

Authors
Journal
Nuclear Physics A
0375-9474
Publisher
Elsevier
Publication Date
Volume
835
Identifiers
DOI: 10.1016/j.nuclphysa.2010.01.207
Keywords
  • Kaon
  • Electroproduction Reactions
  • Missing Mass Spectroscopy

Abstract

Abstract Since 2008 the magnetic spectrometer Kaos, dedicated to the detection of charged kaons, is operating at the 1.5 GeV electron beam of MAMI at the Institut für Kernphysik in Mainz, Germany. The strangeness programme performed in 2008–9 is addressing some important issues in the field of elementary kaon photoelectro-production reactions. The identification of Λ and Σ 0 hyperons in the missing mass spectra from kaon production off a liquid hydrogen target demonstrates the capability of the extended facility to perform strangeness electro-production spectroscopy at low momentum transfers Q 2 < 0.5 ( GeV / c ) 2 . Systematic uncertainties in the cross-section extraction from the data are discussed.

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