E665
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Lambda and Antilambda polarization from deep inelastic muon scattering

The E665 collaboration Adams, M.R. ; Aderholz, M. ; Aid, S. ; et al.
Eur.Phys.J.C 17 (2000) 263-267, 2000.
Inspire Record 509690 DOI 10.17182/hepdata.43315

We report results of the first measurements of Lambda and Antilambda polarization produced in deep inelastic polarized muon scattering on the nucleon. The results are consistent with an expected trend towards positive polarization with increasing x_F. The polarizations of Lambda and Antilambda appear to have opposite signs. A large negative polarization for Lambda at low positive x_F is observed and is not explained by existing models.A possible interpretation is presented.

2 data tables
Table 1

The measured and corrected (undiluted) polarizations.

Table 2

The measured and corrected (undiluted) polarizations.


Production of neutral strange particles in muon - nucleon scattering at 490-GeV

The E665 collaboration Adams, M.R. ; Aderholz, M. ; Aïd, S. ; et al.
Z.Phys.C 61 (1994) 539-550, 1994.
Inspire Record 362429 DOI 10.17182/hepdata.42473

The production ofK0, Λ and\(\bar \Lambda \) particles is studied in the E665 muon-nucleon experiment at Fermilab. The average multiplicities and squared transverse momenta are measured as a function ofxF andW2. Most features of the data can be well described by the Lund model. Within this model, the data on the K0/π± ratios and on the averageK0 multiplicity in the forward region favor a strangeness suppression factors/u in the fragmentation process near 0.20. Clear evidence for QCD effects is seen in the average squared transverse momentum ofK0 and Λ particles.

10 data tables
Table 1

No description provided.

Table 2

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Table 3

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