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Normalization of two-particle correlation observables

Aug 10, 2022, 11:45 AM


Mr Donghai Zhang (CCNU)


To account for the acceptance effect of two-particle correlations, a normalization is performed in pioneer work. We propose a normalization scheme based on an independent particle assumption to improve the background estimation. Choosing per-trigger yield calculated by CGC as an example, a comparison of the background proposed in this paper with that in pioneer work is made. The differences between the two backgrounds are demonstrated to be small. However, the resulting per- trigger yield normalized by the two backgrounds show qualitative differences, i.e. different trends as a function of ∆y. The one normalized by the background of this paper shows better agreements with data. The normalization does not affect the yield as a function of ∆φ and thus the agreement of the per-trigger yield as a function of ∆φ with the experimental data is maintained.

Primary author

Mr Donghai Zhang (CCNU)

Presentation materials