Meson and baryon femtoscopy in heavy-ion collisions at ALICE

Abstract

We present results of femtoscopic analysis with K0s-K0s, Kch-Kch, p-p, pbar-pbar, p-pbar and lambda-antilambda in Pb-Pb collisions at sqrt{s_NN}=2.76 TeV and K0s-K0s in pp collisions at sqrt{s}=7 TeV registered by ALICE at the LHC. The femtoscopic radius is extracted from the one-dimensional correlation functions. The analysis reveals that the emission source sizes of pions, kaons and protons measured in heavy-ion collisions exhibit approximate transverse mass scaling which is consistent with hydrodynamic collectivity prediction. Furthermore, baryon-antibaryon correlations are investigated to study the influence of Final State Interactions (annihilation). It may contribute to lower multiplicities of protons observed at LHC energies, with respect to predictions from thermal models.

4 pages, 6 figures, proceedings for Quark Matter 2012, Washington D.C., August 13-18, 2012

References in corpus (1)

• K${}_s^0$K${}_s^0$ correlations in pp collisions at $\sqrt{s}=7$ TeV from the LHC ALICE experiment

Cited by in corpus (6)

• An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: bulk properties and dynamical evolution
• Extracting baryon-antibaryon strong interaction potentials from p$\bar{\Lambda }$ femtoscopic correlation function
• Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Angular correlations measured in pp collisions by ALICE at the LHC
• Effects of hadronic mean-field potentials on Hanbury-Brown-Twiss correlations in relativistic heavy-ion collisions
• Kaon femtoscopy of Pb-Pb and pp collisions at the LHC with the ALICE experiment