Kaon femtoscopy in Pb-Pb collisions with ALICE at the LHC

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: I-40
Poster Correlations and Fluctuations Poster session

Speaker

Matthew Donald Steinpreis (Ohio State University (US))

Description

Identical kaon femtoscopic correlations allow one to measure the space-time characteristics of particle production using the combination of quantum statistics and final state interactions. Kaon femtoscopy provides an excellent complement to pion analyses as it extends the range over which we can study the momentum dependence of the femtoscopic radii and allows us to look for a transverse mass scaling predicted by hydrodynamical models. Neutral and charged kaon analyses require different experimental procedures and thus provide a good consistency check. We present the results of identical kaon femtoscopy in Pb-Pb collisions at the LHC with ALICE. One-dimensional femtoscopic radii ($R_{\rm inv}$) and lambda parameters from neutral and charged kaons are shown for several ranges of transverse pair momentum ($k_{\rm T}$) and centrality. The results are compared to other femtoscopic analyses as well as theoretical model predictions. Also, for the first time, 3D correlation functions and extracted fit parameters from neutral kaons are shown.
On behalf of collaboration: ALICE

Primary author

Matthew Donald Steinpreis (Ohio State University (US))

Presentation Materials