One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at $\sqrt{s_{\rm {NN}}}$ =2.76 TeV

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2.76 TeV
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Results are presented from femtoscopic analyses with K0sK0s, KchKch, pp and pbarpbar correlations from Pb-Pb collisions at sqrt(sNN)=2.76 TeV by the ALICE experiment at the LHC. The femtoscopic radius and lambda parameters are extracted from one-dimensional correlation functions in terms of the invariant momentum difference. It is found that the emission source sizes of kaons and protons measured in these collisions exhibit approximate transverse mass scaling which is consistent with hydrodynamic model collectivity predictions. The extracted lambda parameters are found to be less than unity, as typically measured in identical pion femtoscopic studies.

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