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DOE OSTI Β· 2204519

Transverse Ξ› polarization in 𝑒 +⁒ 𝑒 βˆ’ annihilations and in SIDIS processes at the EIC within TMD factorization

D’Alesio, UmbertoΒ·Gamberg, LeonardΒ·Murgia, FrancescoΒ·Zaccheddu, Marco
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Abstract

We present a phenomenological study on the role of charm contribution and SU(2) isospin symmetry in the extraction of the Ξ› polarizing fragmentation functions from e + e – β†’ Ξ› ↑ ($\overline{Ξ›}$ ↑ )h+X annihilation processes. We adopt the well-established transverse-momentum-dependent factorization formalism, within the Collins-Soper-Sterman evolution scheme at next-to-leading logarithm accuracy, carefully exploiting the role of the nonperturbative component of the polarizing fragmentation function. We then discuss the impact of these results on the predictions for transverse Ξ›, $\overline{Ξ›}$ polarization in semi-inclusive deep inelastic scattering processes at typical energies of the future Electron-Ion Collider.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSParticle productionPerturbation theoryPhenomenologyQuantum Chromodynamics

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D’Alesio, Umberto, Gamberg, Leonard, Murgia, Francesco, Zaccheddu, Marco. 2023-11-02. Transverse Ξ› polarization in 𝑒 +⁒ 𝑒 βˆ’ annihilations and in SIDIS processes at the EIC within TMD factorization. https://doi.org/10.1103/physrevd.108.094004

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