Beam Energy Scan on Hypertriton Production and Lifetime Measurement at RHIC STAR

We report preliminary results on image production in Au + Au collisions at RHIC at image, 11.5, 19.6, 27, 39, and 200 GeV. The beam energy dependence of strangeness population factor image is shown and the result indicates that image has an increasing trend with 1.7σ significance. The hypertriton lifetime combining the above Au + Au collision data set is measured to be image.