English

Prospects of transverse $\Lambda$ and $\bar{\Lambda}$ polarization measurements at LHCb

High Energy Physics - Experiment 2023-07-18 v1 Nuclear Experiment

Abstract

Transverse Λ\Lambda polarization observed over four decades ago contradicted expectations from early leading-order perturbative QCD calculations. Measurements of Λ\Lambda polarization from unpolarized pppp and ppA collisions have been previously observed to increase as a function of xFx_F and pTp_T up to a few GeV range and approximately independent of beam energy. Recent studies have linked polarization to the process of hadronization, which describes how particular hadrons are formed from scattered quarks and gluons. The high energy of the LHC and the coverage and precision measurement possibilities from LHCb forward geometry are ideal for studying hyperon polarization as a function of both pTp_T and xFx_F. This contribution presents the status and prospects of hyperon polarization measurements in pppp, ppPb, Pbpp, and fixed-target ppA collisions at LHCb.

Keywords

Cite

@article{arxiv.2307.07878,
  title  = {Prospects of transverse $\Lambda$ and $\bar{\Lambda}$ polarization measurements at LHCb},
  author = {Cynthia Nunez},
  journal= {arXiv preprint arXiv:2307.07878},
  year   = {2023}
}

Comments

Presented at DIS2023: XXX International Workshop on Deep-Inelastic Scattering and Related Subjects, Michigan State University, USA, 27-31 March 2023

R2 v1 2026-06-28T11:31:25.848Z