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      Femtoscopic measurements in \(p\)+Pb collisions at \(\sqrt{s_{_{\text{NN}}}}= 5.02\)~TeV with ATLAS at the LHC

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          Abstract

          Recent measurements in two-particle correlations in \(p\)+Pb collisions suggest collective behavior reminiscent of that observed in Pb+Pb. Femtoscopic measurements may provide useful insight on this behavior because they image the spatio-temporal size of the particle emitting region. This proceeding presents identical-pion Hanbury Brown and Twiss (HBT) measurements from ATLAS using one- and three-dimensional correlation functions. Pions are identified using \(\text{d}E/\text{d}x\) measured in the pixel detector. Correlation functions and the resulting HBT radii are shown as a function of pair momentum (\(k_{\rm T}\)) and collision centrality.

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          Journal
          1601.05632

          Nuclear physics
          Nuclear physics

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