Transverse Λ polarization in e⁺e^- annihilations and in SIDIS processes at the EIC within TMD factorization

2023/07/05 by U. D’Alesio, D'Alesio, Umberto, Leonard Gamberg +5 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2307.02359

openalex publication_date 2023/07/05 · openalex created_date 2023/07/07 · openalex updated_date 2026/08/01

Abstract

We present a phenomenological study on the role of charm contribution and SU(2) isospin symmetry in the extraction of the Λ polarizing fragmentation functions from e⁺e^- → Λ^\uparrow (Λ^\uparrow) 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 Λ, Λ polarization in semi-inclusive deep inelastic scattering processes at typical energies of the future Electron-Ion Collider.

Cited by

• Measurement of transverse polarization of Λ and Λ hyperons inside jets in pp collisions at √(s)=200 GeV

Related

• Λ polarizing fragmentation function from Belle e⁺e^- data
• Transverse Λ polarization in unpolarized pp→ \rm jet Λ^\uparrow X
• Transversity and Λ polarization at COMPASS
• Hadronization mechanisms and longitudinal polarization of Lambda in e+e- annihilation at high energies
• Transverse Lambda Polarization at LHC