Abstract
The reactions e+e- → e+e-ΛX and e+e- → e+e- ĀX are studied using data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. Inclusive differential cross sections are measured as a function of the lambda transverse momentum, pt , and pseudo-rapidity, η, in the ranges 0.4 GeV < pt < 2.5 GeV and |η| < 1.2. The data are compared to Monte Carlo predictions. The differential cross section as a function of pt is well described by an exponential of the form A exp(-pt /(pt)).
Original language | English (US) |
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Pages (from-to) | 140-150 |
Number of pages | 11 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 586 |
Issue number | 3-4 |
DOIs | |
State | Published - Apr 29 2004 |
Bibliographical note
Publisher Copyright:© 2004 Published by Elsevier B.V.