Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions

Tang, Aihong; Tu, B.; Zhou, C. S.

doi:10.1103/PhysRevC.98.044907

Title: Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions

Journal Article · Fri Oct 12 00:00:00 EDT 2018 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.98.044907· OSTI ID:1477968

Tang, Aihong ^[1]; Tu, B. ^[2]; Zhou, C. S. ^[3]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Central China Normal Univ., Hubei (China)
Chinese Academy of Sciences, Shanghai (People's Republic of China); Univ. of Chinese Academy of Sciences, Beijing (People's Republic of China)

Global spin alignment of vector mesons is a sensitive probe of system vorticity and particle production mechanism in relativistic heavy ion collisions. The measurement of global spin alignment is gaining increasing interest and deserves careful considerations. In this paper, we lay out a few practical issues that need to be taken care of when measuring global spin alignment of vector mesons. They are, the correction for event plane resolution, reconciling measurements made with different event planes, the correction for the effect of finite acceptance in pseudorapidity, and the consideration for measuring the azimuthal angle dependence. Furthermore insights and methodologies offered in this paper will help experiments to measure the global spin alignment properly and accurately.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704

OSTI ID:: 1477968

Alternate ID(s):: OSTI ID: 1478689

Report Number(s):: BNL-209178-2018-JAAM

Journal Information:: Physical Review C, Vol. 98, Issue 4; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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