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arXiv · 1601.05632

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

Markus K. Koehler
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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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Markus K. Koehler. 2016-01-21. Femtoscopic measurements in $p$+Pb collisions at $\sqrt{s_{_{\text{NN}}}}= 5.02$~TeV with ATLAS at the LHC. https://doi.org/10.1016/j.nuclphysa.2016.02.056

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