Quark Sivers Function at Small-$x$: Leading contribution from the Spin-Dependent Odderon
M. Gabriel Santiago
SciPost Phys. Proc. 8, 027 (2022) · published 11 July 2022
- doi: 10.21468/SciPostPhysProc.8.027
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28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects
Abstract
We present the calculation of the leading contribution to the quark Sivers function at small-Bjorken $x$. This calculation uses the high energy scattering approximation and operator formalism developed by Kovchegov and Sievert to obtain a dominant contribution to the quark Sivers function coming from the spin-dependent odderon, in agreement with the results of Dong, Zhen, and Zhou. We then calculate this dominant contribution in the diquark model of the proton to obtain a small-$x$ estimate for the Sivers function.
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