Interplay of femtoscopic and charge-balance correlations

Journal Article · 16 May 2022 · Physical Review. C

DOI: https://doi.org/10.1103/physrevc.105.054906 · OSTI ID:1979880

Pratt, Scott  ^[1]; Martirosova, Karina ^[1]

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1. Michigan State University, East Lansing, MI (United States)

Correlations driven by the constraints of local charge conservation have been shown to provide insight into the chemical evolution and diffusivity of the high-temperature matter created in ultrarelativistic heavy ion collisions. Two-particle correlations driven by final-state interactions have allowed the extraction of critical femtoscopic space-time information about the expansion and dissolution of the same collisions. Whereas correlations from final-state interactions mainly appear at small relative momenta, a few tens of MeV/c, charge-balance correlations extend over a range of hundreds of MeV/c. In nearly all previous analyses, this separation of scales is used to focus solely on one class or the other. So the purpose of this study is to quantitatively understand the degree to which correlations from final-state interactions distort the interpretation of charge-balance correlations and vice versa.

• Research Organization: Michigan State University, East Lansing, MI (United States)
• Sponsoring Organization: National Science Foundation (NSF); USDOE Office of Science (SC)
• Grant/Contract Number: FG02-03ER41259
• OSTI ID: 1979880
• Journal Information: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 5 Vol. 105; ISSN 2469-9985
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English