Resummation of the Sivers asymmetry in heavy flavor dijet production at the Electron-Ion Collider

TL;DR

This paper develops a formalism for resumming the Sivers asymmetry in heavy flavor dijet production at the Electron-Ion Collider, incorporating heavy flavor mass effects and analyzing their impact on asymmetry predictions.

Contribution

It introduces a transverse momentum dependent factorization and resummation approach that includes heavy flavor mass corrections for the first time.

Findings

Heavy flavor mass effects significantly alter the predicted asymmetry.

Mass corrections can lead to sizable differences in the asymmetry predictions.

The formalism enables more accurate predictions for heavy flavor dijet production at the EIC.

Abstract

We review our transverse momentum dependent factorization and resummation formalism for heavy flavor dijet production at the EIC. In this formalism, we have calculated the heavy flavor mass corrections in the collinear-soft and jet functions, and in the resummed expression for the cross section. By establishing this formalism, we then study the effects of the mass corrections by providing predictions at the EIC for the massive case and for the case where the mass is neglected. We find that the heavy flavor mass effects can give sizable corrections to the predicted asymmetry.