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Study of T-odd Quark Fragmentation Function in $Z^0\to 2$-jet Decay

A. V. Efremov·O. G. Smirnova·L. G. Tkatchev
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Abstract

The first probe of the correlation of the T-odd one-particle fragmentation function responsible for the left--right asymmetry of fragmentation of a transversely polarized quark and an antiquark is done by using the 1991-95 DELPHI data for $Z\to 2$ jet decay. Integrated over the fraction of longitudinal and transversal momenta, this correlation is of 2.5 ppm order, which means order of 7% for the analyzing power. This makes us hope to use certain effects in polarized DIS experiments for transversity measurement.

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A. V. Efremov, O. G. Smirnova, L. G. Tkatchev. 1998-12-30. Study of T-odd Quark Fragmentation Function in $Z^0\to 2$-jet Decay. https://doi.org/10.1016/s0920-5632(99)00131-0

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