Relative particle yield fluctuations in Pb-Pb collisions at root s(NN)=2.76 TeV

Show full item record



Permalink

http://hdl.handle.net/10138/300488

Citation

The ALICE Collaboration , Acharya , S , Brucken , E J , Chang , B , Kim , D J , Litichevskyi , V , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Saarinen , S , Slupecki , M , Snellman , T W , Trzaska , W H , Vargyas , M & Viinikainen , J 2019 , ' Relative particle yield fluctuations in Pb-Pb collisions at root s(NN)=2.76 TeV ' , European Physical Journal C. Particles and Fields , vol. 79 , no. 3 , 236 . https://doi.org/10.1140/epjc/s10052-019-6711-x

Title: Relative particle yield fluctuations in Pb-Pb collisions at root s(NN)=2.76 TeV
Author: The ALICE collaboration; Acharya, S.; Brucken, E. J.; Chang, B.; Kim, D. J.; Litichevskyi, V.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S. S.; Saarinen, S.; Slupecki, M.; Snellman, T. W.; Trzaska, W. H.; Vargyas, M.; Viinikainen, J.
Other contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Jyväskylä
Date: 2019-03-14
Language: eng
Number of pages: 14
Belongs to series: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
DOI: https://doi.org/10.1140/epjc/s10052-019-6711-x
URI: http://hdl.handle.net/10138/300488
Abstract: First results on K/pi, pi/pi and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb-Pb collisions at v root s(NN) = 2.76 TeV. The observable nu(dyn), which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p/pi show a change of sign in.dyn from positive to negative towards more peripheral collisions. For central collisions, the results follow the smooth trend of the data at lower energies and.dyn exhibits a change in sign for p/pi and K/p. nu(dyn)
Subject: 114 Physical sciences
PARTON
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
Acharya2019_Art ... ParticleYieldFluctuati.pdf 932.3Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record