Meson and baryon femtoscopy in heavy-ion collisions at ALICE

Meson and baryon femtoscopy in heavy-ion collisions at ALICE

We present results of femtoscopic analysis with K0s-K0s, Kch-Kch, p-p, pbar-pbar, p-pbar and lambda-antilambda in Pb-Pb collisions at sqrt{s_NN}=2.76 TeV and K0s-K0s in pp collisions at sqrt{s}=7 TeV registered by ALICE at the LHC. The femtoscopic radius is extracted from the one-dimensional correla...

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Veröffentlicht in:arXiv.org 2012-11
Hauptverfasser: Szymański, Maciej Paweł, the ALICE Collaboration
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Sprache:eng
Schlagworte:
Baryons
Correlation analysis
Dimensional analysis
Emission analysis
Ionic collisions
Kaons
Large Hadron Collider
Mathematical models
Physics - High Energy Physics - Experiment
Physics - Nuclear Experiment
Pions
Thermal analysis
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description We present results of femtoscopic analysis with K0s-K0s, Kch-Kch, p-p, pbar-pbar, p-pbar and lambda-antilambda in Pb-Pb collisions at sqrt{s_NN}=2.76 TeV and K0s-K0s in pp collisions at sqrt{s}=7 TeV registered by ALICE at the LHC. The femtoscopic radius is extracted from the one-dimensional correlation functions. The analysis reveals that the emission source sizes of pions, kaons and protons measured in heavy-ion collisions exhibit approximate transverse mass scaling which is consistent with hydrodynamic collectivity prediction. Furthermore, baryon-antibaryon correlations are investigated to study the influence of Final State Interactions (annihilation). It may contribute to lower multiplicities of protons observed at LHC energies, with respect to predictions from thermal models.
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subjects Baryons
Correlation analysis
Dimensional analysis
Emission analysis
Ionic collisions
Kaons
Large Hadron Collider
Mathematical models
Physics - High Energy Physics - Experiment
Physics - Nuclear Experiment
Pions
Thermal analysis
title Meson and baryon femtoscopy in heavy-ion collisions at ALICE
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