Feasibility studies of conserved charge fluctuations in Au-Au collisions with CBM

Subhasis Samanta

doi:10.1016/j.nuclphysa.2020.121896

paper

Feasibility studies of conserved charge fluctuations in Au-Au collisions with CBM

arXiv:2002.12235 · doi:10.1016/j.nuclphysa.2020.121896

Abstract

We present the CBM physics performance study for measurements of the higher order cumulants of the net-proton multiplicity distributions. These observables are proxy for net-baryon fluctuations and are commonly used to study the phase structure of QCD phase diagram. The simulation is done for $A u + A u$ collision at beam kinetic energy $E_{l ab} = 10$ AGeV. The cumulants of net-proton distributions have been calculated at midrapidity ( $∣Δ y ∣ = 1$ ) for the transverse momentum range $0.2 < p_{T} < 2.0$ GeV/c. The centrality dependence of cumulants of net-proton upto order four is presented. The efficiency and detector effects are corrected using unfolding techniques. This work shows that the higher order cumulants of net-proton can be measured using the CBM detector.

Proceedings of the XXVIII th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2019), Wuhan, China, November 3-9 2019