Speaker
Julia Ruiz Tabasco
(Cinvestav - Unidad Mérida)
Description
The production of strange hadrons is investigated using deep-inelastic
scattering events measured with the H1 detector at HERA. The
measurements of K_s and Lambda production are performed in two regions
of phase space defined by the negative four-momentum transfer squared
of the photon Q^2. The K_s and Lambda production cross sections and
their ratios are determined and presented differentially as a function
of several kinematical variables. The K_s production rate is compared
to the production of charged particles in the same region of phase
space. In addition, the Lambda - Anti-Lambda asymmetry is measured.
The production of K*(892) vector mesons in deep-inelastic scattering
at low Q^2, observed through the decay chain K*+- --> K0s pi+-, is
measured for the first time at HERA. The analysis is based on data
taken in the HERA-II running period. Inclusive cross sections are
presented as a function of the transverse momentum squared P_T*^2,
the rapidity y* and the centre-of-mass energy W of the hadronic final
state. The data are compared to theoretical predictions, based on
leading order Monte Carlo programs with parton showers.
Primary author
Katja Krueger
(Heidelberg University)
Co-author
Julia Ruiz Tabasco
(Cinvestav - Unidad Mérida)
