Transverse Λ/$\bar{\Lambda}$ Hyperon Polarization Measurements at LHCb

Spontaneous transverse Λ (uds) polarization observed over four decades ago contradicted early leading order perturbative QCD calculations. Recent studies have linked the polarization to the process of hadronization, where hyperon polarization from unpolarized proton-proton collisions comes from either including higher order twist-3 collinear multi-parton correlation matrix elements or convolution of a twist-2 transverse-momentum dependent parton distribution function with a transverse-momentum dependent fragmentation function. Measurements of hyperon polarization from unpolarized p-p and p-Pb collisions, along with e⁺e^- and semi-inclusive deep inelastic scattering measurements can put us in a better position to understand this decades-old question in QCD. The high energy from the LHC, which produces hyperons in abundance, and the coverage and precision measurement possibilities from LHCb’s particle identification and forward geometry will be ideal to study polarization of various hyperons as a function of both p_T and x_F. The status of Λ/$\bar{\Lambda}$ polarization measurements performed for p-Pb collisions, $\sqrt{s} = 5.02$ TeV, at LHCb will be presented.