Longitudinal and Transverse Spin Transfer of $Λ$ and $\overlineλ$ Hyperons in Polarized $p$+$p$ Collisions at $\sqrt{s} = 200$ GeV at RHIC-STAR

Measurements of the longitudinal spin transfer, D_{LL}DLL, and the transverse spin transfer, D_{TT}DTT, of the \Lambda(\bar{\Lambda}Λ(Λ‾) hyperon in polarized pp+pp collisions are expected to be sensitive to the helicity distribution and transversity distribution of the s(\bar{s})s(s‾) quark in proton and the corresponding polarized fragmentation functions. This contribution presents the new preliminary results of the \Lambda(\bar{\Lambda}Λ(Λ‾) D_{LL}DLL and D_{TT}DTT using data collected at RHIC-STAR experiment in 2015, with twice larger statistics than previously published results.