Lambda Baryons at high $Q^2$ at HERA

Reference February 2013
Document Conference paper or talk
Figures  (1a)  (1b)  (1c)  (1d)  (2)  (3a)  (3b)  (3c)  (3d)  (4a)  (4b)  (4c)  (4d)  (5a)  (5b)  (6a)  (6b)  (6c)  (6d)  (7a)  (7b)  (7c)  (7d)
Contact K. Cantun, K. Daum
Abstract The production of Lambda baryons is studied using deep-inelastic events measured with the H1 detector at HERA. The measurements are made in the phase space defined by the negative four-momentum transferred squared of the photon, $145 < Q^2 < 20000~\mathrm{GeV}^2$, and the inelasticity $0.2 < y < 0.6$. Differential Lambda production cross sections are measured. Differential Lambda yields per event are determined. The Lambda - Anti-lambda asymmetry is measured and found to be consistent with zero. Predictions of leading order Monte Carlo programs are compared to data.
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