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Strangeness production at low Q2 with the H1 detector |
| Reference |
Preliminary DIS 2008, March 2008 |
| Document |
Conference paper or talk
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| Contact |
M. Del Degan, A. Falkiewicz, Ch. Grab, G. Nowak |
| Abstract |
The production of the neutral strange mesons \ksf\
and the strange baryons $\Lambda$ and their antiparticles
is investigated using deep inelastic
scattering events measured with the H1 detector at HERA.
The \ksf\ and $\Lambda$ production cross sections and
the baryon to meson ratios
are reported differentially for the range of negative
photon four-momentum transfer squared
$2 < Q^2 < 100$ $\GeVSq$ and photon inelasticity $0.1 < y < 0.6$.
In addition, the \ksf\ production rates are compared directly
with those of charged particles in the same phase space region.
The $\Lambda - ar{\Lambda}$ asymmetry is also measured differentially
and found to be consistent with zero in all bins.
The model predictions, based on leading order Monte Carlo
programs in general are able to describe the overall features of the
measurements, however fail in particular details.
The data agree with the expectations from $e^+ e^-$ colliders. |
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