Pions near the chiral critical point

8th International Workshop on Hadron Physics

Hippert, M.^1 ; Fraga, E.S.^1 ; Santos, E.M.^2

Instituto de Física, Universidade Federal Do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ

21941-972, Brazil^1

Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, São Paulo, SP

05314-970, Brazil^2

关键词: Dynamical effects;    Monotonic behavior;    Non ideals;    Second order moment;    Ultrarelativistic heavy ion collision;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/706/5/052024/pdf
DOI  :  10.1088/1742-6596/706/5/052024

来源: IOP

【 摘 要 】

It is an exciting possibility that the QCD critical point can be found in ultrarelativistic heavy-ion collision experiments (HICs). While quantities such as some event-by-event moments of specific observables should display strong non-monotonic behavior near the critical point and could, hence, be used as signatures of criticality, it is not clear that this behavior could effectively be observed in the highly non-ideal scenario of HICs. We here employ Monte Carlo simulations to test second-order moments of pion observables as possible signatures of the critical point while taking into account some realistic ingredients, similar to the ones found in HICs. We make use of simplified models to introduce spurious contributions and dynamical effects.