Observation of hypertritons in Au+Au collisions at \sqrt{s_{NN}} = 200 GeV

Understand

We report preliminary results of hypertriton observation in heavy-ion collisions at RHIC.

• We have identified 157 +- 30 candidates in the current sample containing ~10^8 Au+Au events at \sqrt{s_{NN}} = 200 GeV.
• The production rate of hypertriton is close to that of helium 3.
• No extra penalty factor is observed for hypertriton, in contrast to results observed at the AGS.