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On the new COMPASS measurement of the deuteron spin-dependent structure function $g_1^d$

M. Wakamatsu
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Abstract

Very recently, a new measurement of the deuteron spin-dependent structure function $g_1^d (x)$ was reported by the COMPASS group. A main change from the old SMC measurement is a considerable improvement of the statistical accuracy in the low $x$ region $0.004 < x < 0.03$. We point out that the new COMPASS data for $g_1^d (x)$ as well as their QCD fits for $ΔΣ$ and $Δs + Δ\bar{s}$ are all remarkably close to our theoretical predictions given several years ago based on the chiral quark soliton model.

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M. Wakamatsu. 2007-01-05. On the new COMPASS measurement of the deuteron spin-dependent structure function $g_1^d$. https://doi.org/10.1016/j.physletb.2006.12.073

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