Speaker
Mr
Sumit BASU
(Variable Energy Cyclotron Centre)
Description
Non-statistical event-by-event fluctuations in relativistic heavy ion collisions have been proposed as probe of phase instabilities near the QCD phase transition. The observable νdyn, which is given in terms of the moments of identified-particle multiplicity distributions, is used to quantify the magnitude of the dynamical fluctuations in event-by-event measurements of given particle ratios. The ALICE detector at the LHC is well suited for the study of νdyn, due to its excellent particle identification capabilities. Particle identification that is based on the measurement of the specific ionization energy loss dE/dx works well on a statistical basis, however, suffers from ambiguities when applied on the event-by-event level. A novel experimental technique called the "Identity Method" was recently proposed to overcome such limitations. In this contribution, we will present results for νdyn for K/π, p/π, and K/p, which applies the Identity Method to Pb-Pb data from ALICE.
Primary author
Mr
Mesut Arslandok
(Institut fuer Kernphysik, Goethe University, Frankfurt)
