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arXiv · 0706.1459

Transversity Signals in Two-Hadron Production at COMPASS

C. Schill
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Abstract

New results on single spin asymmetries of identified charged pion and kaon pairs produced in deep-inelastic scattering of muons on a transversely polarized 6LiD target are presented. The data were taken in the years 2003 and 2004 with the COMPASS spectrometer at CERN with a 160 GeV muon beam from the CERN SPS accelerator. The asymmetries can be interpreted in the context of transversity as a convolution of the chiral-odd interference fragmentation function $H_1^\sphericalangle$ with the transverse spin distribution of quarks $\Delta_Tq(x)$. The measured azimuthal target spin asymmetries on the deuteron are compatible with zero within a small statistical error of about 1%.

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C. Schill. 2007-06-11. Transversity Signals in Two-Hadron Production at COMPASS. https://doi.org/10.3360/dis.2007.105

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