Transverse single spin asymmetry in the Drell-Yan process

Abstract

We revisit the transverse single spin asymmetry in the angular distribution of a Drell-Yan dilepton pair. We study this asymmetry by using twist-3 collinear factorization, and we obtain the same result both in covariant gauge and in the light-cone gauge. Moreover, we have checked the electromagnetic gauge invariance of our calculation. Our final expression for the asymmetry differs from all the previous results given in the literature. The overall sign of this asymmetry is as important as the sign of the Sivers asymmetry in Drell-Yan.

9 pages

References in corpus (12)

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• Single transverse-spin asymmetry in high transverse momentum pion production in pp collisions
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• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Dilepton production from polarized hadron hadron collisions
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• QCD Evolution of the Transverse Momentum Dependent Correlations
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• Angular distribution of leptons from the decay of massive vector bosons
• Gauge invariance, causality and gluonic poles
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Cited by in corpus (11)

• Single-spin asymmetries in the leptoproduction of transversely polarized $\Lambda$ hyperons
• Soft-Gluon-Pole Contribution in Single Transverse-Spin Asymmetries of Drell-Yan Processes
• One-Loop Corrections of Single Spin Asymmetries at Twist-3 in Drell-Yan Processes
• Collinear Factorization for Single Transverse-Spin Asymmetry in Drell-Yan Processes
• Single spin asymmetries in forward p-p/A collisions revisited: the role of color entanglement
• Gauge Invariance and QCD Twist-3 Factorization for Single Spin Asymmetries
• Constraining gluon poles
• QCD Evolutions of Twist-3 Chirality-Odd Operators
• Single Transverse-Spin Asymmetries in Drell-Yan Processes
• QCD Beyond Leading Power
• Twist-3 contribution in the Drell-Yan process with tensor-polarized deuteron