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Quark Sivers Function at Small-$x$: Leading contribution from the Spin-Dependent Odderon

by M. Gabriel Santiago

Submission summary

As Contributors: M Gabriel Santiago
Arxiv Link: (pdf)
Date submitted: 2021-08-03 03:25
Submitted by: Santiago, M Gabriel
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
  • High-Energy Physics - Phenomenology
Approach: Theoretical


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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Submission 2108.01046v1 on 3 August 2021

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