Femtoscopy of identified particles at STAR

Abstract

We present new measurements of $\Lambda -\Lambda$ correlations, which are closely related to $H$-dibaryon: a six quark state predicted by Jaffe (1977), in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV from the STAR experiment. Fits to different potential models are discussed and extracted scattering length and effective range are also presented.We also present spherical harmonic decomposition of pion-kaon correlation function for 0-5% centrality in Au+Au collision at $\sqrt{s_{NN}}=200$ GeV. In addition, we also discuss results from azimuthal HBT for beam energies 7.7-200 GeV.

Comments: 4 pages, 4 figures, Quark Matter 2012 proceedings