One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration. (2015). One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C, 92(5), Article 054908. https://doi.org/10.1103/PhysRevC.92.054908
Published inPhysical Review C
© 2015 CERN, for the ALICE Collaboration. This article is available under the terms of the Creative Commons Attribution 3.0 License.
The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. In this paper, results are presented from femtoscopic analyses of π±π±, K±K±, K0 SK0 S, pp, and pp correlations from Pb-Pb collisions at √sNN = 2.76 TeV by the ALICE experiment at the LHC. One-dimensional radii of the system are extracted from correlation functions in terms of the invariant momentum difference of the pair. The comparison of the measured radii with the predictions from a hydrokinetic model is discussed. The pion and kaon source radii display a monotonic decrease with increasing average pair transverse mass mT which is consistent with hydrodynamic model predictions for central collisions. The kaon and proton source sizes can be reasonably described by approximate mT scaling.
PublisherAmerican Physical Society
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Except where otherwise noted, this item's license is described as © 2015 CERN, for the ALICE Collaboration. This article is available under the terms of the Creative Commons Attribution 3.0 License.
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