New high precision measurements of the Collins and Sivers asymmetries of charged hadrons
produced in deep-inelastic scattering of muons on a transversely polarised 6LiD target are
presented. The data were taken in 2003 and 2004 with the COMPASS spectrometer using
the muon beam of the CERN SPS at 160 GeV/c. Both the Collins and Sivers asymmetries
turn out to be compatible with zero, within the present statistical errors, which are more
than a factor of 2 smaller than those of the published COMPASS results from the 2002 data.
The _nal results from the 2002, 2003 and 2004 runs are compared with naive expectations
and with existing model calculations.
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