Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector

A bstract A measurement of the transverse polarization of the Λ and ̄ Λ ¯ hyperons in p Ne fixed-target collisions at √sNN s NN = 68 . 4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ → pπ − together with its charge conjugated process, the integrated values measured are $$ { {array}{c}{P}=0.029± 0.019(stat)± 0.012(syst),\\ {}{P}̄=0.003± 0.023(stat)± 0.014(syst).{array}} $$ P Λ = 0.029 ± 0.019 stat ± 0.012 syst , P Λ ¯ = 0.003 ± 0.023 stat ± 0.014 syst . Furthermore, the results are shown as a function of the Feynman x variable, transverse momentum, pseudorapidity and rapidity of the hyperons, and are compared with previous measurements.