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

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Central China Normal Univ., Hubei (China)
  3. Chinese Academy of Sciences, Shanghai (People's Republic of China); Univ. of Chinese Academy of Sciences, Beijing (People's Republic of China)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1477968
Alternate Identifier(s):
OSTI ID: 1478689
Report Number(s):
BNL-209178-2018-JAAM
Journal ID: ISSN 2469-9985
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 98; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Tang, Aihong, Tu, B., and Zhou, C. S. Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.98.044907.
Tang, Aihong, Tu, B., & Zhou, C. S. Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions. United States. doi:10.1103/PhysRevC.98.044907.
Tang, Aihong, Tu, B., and Zhou, C. S. Fri . "Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions". United States. doi:10.1103/PhysRevC.98.044907. https://www.osti.gov/servlets/purl/1477968.
@article{osti_1477968,
title = {Practical considerations for measuring global spin alignment of vector mesons in relativistic heavy ion collisions},
author = {Tang, Aihong and Tu, B. and Zhou, C. S.},
abstractNote = {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.},
doi = {10.1103/PhysRevC.98.044907},
journal = {Physical Review C},
issn = {2469-9985},
number = 4,
volume = 98,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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Cited by: 1 work
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Figures / Tables:

FIG. 1 FIG. 1: The definition of angles. $\vec{p}$$K$+ is the momentum of the daughter particle $K$+ in the rest frame of $\phi$ meson.

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Spin alignment of vector mesons in non-central <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>A</mml:mi><mml:mo>+</mml:mo><mml:mi>A</mml:mi></mml:math> collisions
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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.