Overview of alice results in femtoscopy

Maciej Szymański


In this report, results of femtoscopic analyses with φ±φ ±, K0SK0S, K±K±, pp, pp, pp, p∧ and p in Pb-Pb collisions at √sNN = 2:76 TeV registered by ALICE at the LHC are presented and compared with results from pp collisions at √s = 7 TeV, where available. Results from heavy-ion collisions are compatible with the hydrodynamic prediction of the scaling of the φ, K and p emission source sizes with the transverse mass. We also show that the femtoscopic radii scale linearly with the cube root of charged particle density. The scaling parameters in Pb-Pb and pp collisions are clearly different which indicates that the initial state influences the size at freeze-out. Moreover, baryon-antibaryon correlations are investigated in the context of smaller baryon yields measured in ALICE compared to the predictions of thermal models. New possible applications of femtoscopy are introduced, namely the measurements of poorly known interaction potentials (e.g. p∧).
Author Maciej Szymański (FP / NPD)
Maciej Szymański,,
- Nuclear Physics Division
Journal seriesActa Physica Polonica B, ISSN 0587-4254
Issue year2013
Keywords in EnglishBaryon yields; Heavy-ion collisions; Interaction potentials; Measurements of; Pb-Pb collisions; Scaling parameter; Thermal model; Transverse mass, Colliding beam accelerators; Hadrons; Lead; Tellurium compounds, Ultrafast phenomena
URL http://www.scopus.com/inward/record.url?eid=2-s2.0-84884172501&partnerID=40&md5=70c253f09eaa66723e3dc6a8d3e80bb3
Score (nominal)20
ScoreMinisterial score = 20.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2013 = 0.998 (2) - 2013=0.742 (5)
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