STUDY OF HYPERON-HYPERON CORRELATIONS AND SEARCH FOR H-DIBARYON USING STAR DETECTOR AT RHIC

摘要

High yield of strange particle production per central collision in nucleus-nucleus collisions at RHIC and high statistics data set from STAR experiment allow us to measure ∧∧ correlations. The ∧∧ correlation measurement is also closely related to a possible six-quark state H-dibaryon, which is yet to be observed experimentally. The first measurement of ∧∧ correlations in Au + Au collisions for s_(NN)~(1/2) = 39, 62.4 and 200 GeV and search for H-dibaryon with its weak decay Apir in Au + Au collisions for s_(NN)~(1/2)= 200 GeV using the STAR experiment at RHIC are presented here.