Title: Review of nonflow estimation methods and uncertainties in relativistic heavy-ion collisions

Journal Article · · Journal of Physics. G, Nuclear and Particle Physics

Abstract Collective anisotropic flow, where particles are correlated over the entire event, is a prominent phenomenon in relativistic heavy-ion collisions and is sensitive to the properties of the matter created in those collisions. It is often measured by two- and multi-particle correlations and is therefore contaminated by nonflow, those genuine few-body correlations unrelated to the global event-wise correlations. Many methods have been devised to estimate nonflow contamination with various degrees of successes and difficulties. Here, we review those methods pedagogically, discussing the pros and cons of each method, and give examples of ballpark estimate of nonflow contamination and associated uncertainties in relativistic heavy-ion collisions. We hope such a review of the various nonflow estimation methods in a single place would prove helpful to future researches.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0012910
OSTI ID:
2480757
Journal Information:
Journal of Physics. G, Nuclear and Particle Physics, Journal Name: Journal of Physics. G, Nuclear and Particle Physics Journal Issue: 1 Vol. 52; ISSN 0954-3899
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English

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