Importance of separated efficiencies between positively and negatively charged particles for cumulant calculations

Abstract

We show the importance of separated efficiency corrections between positively and negatively charged particles for cumulant calculations by Monte Carlo toy models and analytical calculations. Our results indicate that Sσ in published net-proton results from the STAR experiment will be suppressed about 5 to 10% in central collisions, and 10 to 20% in peripheral collisions at the beam energy of \sqrt s_{NN} = 62.4 and 200 GeV if the separated efficiencies are used to efficiency correction.

10 pages and 6 figures

References in corpus (2)

• Energy Dependence of Moments of Net-Proton and Net-Charge Multiplicity Distributions at STAR
• Efficient formulas for efficiency correction of cumulants

Cited by in corpus (6)

• Cumulants and Correlation Functions of Net-proton, Proton and Antiproton Multiplicity Distributions in Au+Au Collisions at energies available at the BNL Relativistic Heavy Ion Collider
• More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency
• Correlated stopping, proton clusters and higher order proton cumulants
• Efficiency correction for cumulants of multiplicity distributions based on track-by-track efficiency
• Rapidity dependence of proton cumulants and correlation functions
• Measurements of charged-particle multiplicity dependence of higher-order net-proton cumulants in $p$+$p$ collisions at $\sqrt{s}=$ 200 GeV from STAR at RHIC