Electron-ion collider impact study on the tensor charge of the nucleon

Leonard Gamberg, Zhong Bo Kang, Daniel Pitonyak, Alexei Prokudin, Nobuo Sato, Ralf Seidl

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In this letter we study the impact of the Electron-Ion Collider (EIC) on the phenomenological extraction of the tensor charge from a QCD global analysis of single transverse-spin asymmetries (SSAs). We generate EIC pseudo-data for the Collins effect in semi-inclusive deep-inelastic scattering for proton and H3e beams across multiple center-of-mass energies. We find a significant reduction in the uncertainties for the up, down, and isovector tensor charges that will make their extraction from EIC data on SSAs as precise as current lattice QCD calculations. We also analyze the constraints placed by future data from the proposed SoLID experiment at Jefferson Lab, discuss its important complementary role to the EIC, and present the combined impact from both facilities.

Original languageEnglish (US)
Article number136255
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - May 10 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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