22–26 Apr 2013
Marseille, Parc Chanot
Europe/Monaco timezone

Strangeness Production in Deep-Inelastic ep Scattering at HERA

23 Apr 2013, 09:10
20m
Sormiou (Palais des Congrès)

Sormiou

Palais des Congrès

Talk in Parallel Session at DIS2013 QCD and Hadronic Final States WG4: QCD and HFS

Speaker

Khurelbaatar Begzsuren

Description

The production of neutral strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector at HERA. The measurements are made in the phase space defined by the negative four-momentum transfer squared of the photon 7 < Q^2 < 100 GeV^2 and the inelasticity 0.1 < y < 0.6. The K_s and Lambda production cross sections and their ratios are determined. K_s production is compared to the production of charged particles in the same region of phase space. Predictions of leading order Monte Carlo programs are compared to the data. The production of Lambda baryons is studied at high Q2, using DIS events recorded with the H1 Detector. Using the full HERA-II statistics, differential Lambda production cross sections, the lambda production rate per event and the lambda-antilambda asymmetry is presented as a function of sevral kinematic varialbes. The H1 data are compared to theoretical predictions, based on leading order Monte Carlo programs with matched parton showers.

Authors

Presentation materials