QCD evolution of the gluon Sivers function in heavy flavor dijet production at the Electron-Ion Collider

Journal of High Energy Physics

Jared Reiten¹  John Terry¹  Zhong-Bo Kang²  Ding Yu Shao³ 

[1] Department of Physics and Astronomy, University of California, 90095, Los Angeles, CA, USA;Mani L. Bhaumik Institute for Theoretical Physics, University of California, 90095, Los Angeles, CA, USA;Department of Physics and Astronomy, University of California, 90095, Los Angeles, CA, USA;Mani L. Bhaumik Institute for Theoretical Physics, University of California, 90095, Los Angeles, CA, USA;Center for Frontiers in Nuclear Science, Stony Brook University, 11794, Stony Brook, NY, USA;Department of Physics and Astronomy, University of California, 90095, Los Angeles, CA, USA;Mani L. Bhaumik Institute for Theoretical Physics, University of California, 90095, Los Angeles, CA, USA;Center for Frontiers in Nuclear Science, Stony Brook University, 11794, Stony Brook, NY, USA;Department of Physics and Center for Field Theory and Particle Physics, Fudan University, 200433, Shanghai, China;Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, 200433, Shanghai, China;

关键词: Deep Inelastic Scattering (Phenomenology);    Jets;   

DOI  :  10.1007/JHEP05(2021)286

来源: Springer

【 摘 要 】

Using Soft-Collinear Effective Theory, we develop the transverse-momentum-dependent factorization formalism for heavy flavor dijet production in polarized-proton-electron collisions. We consider heavy flavor mass corrections in the collinear-soft and jet functions, as well as the associated evolution equations. Using this formalism, we generate a prediction for the gluon Sivers asymmetry for charm and bottom dijet production at the future Electron-Ion Collider. Furthermore, we compare theoretical predictions with and without the inclusion of finite quark masses. We find that the heavy flavor mass effects can give sizable corrections to the predicted asymmetry.

【 授权许可】

CC BY