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Title: Two- and three-particle nonflow contributions to the chiral magnetic effect measurement by spectator and participant planes in relativistic heavy ion collisions

Journal Article · · Physical Review. C

Correlation measurements with respect to the spectator and participant planes in relativistic heavy ion collisions were proposed to extract the chiral magnetic effect (CME) from background dominated azimuthal correlators. Here, this paper investigates the effects of two- and three-particle nonflow correlations on the extracted CME signal fraction, fCME. It is found, guided by a multiphase transport (ampt) model and the heavy ion jet interaction generator (hijing) together with experimental data, that the nonflow effects amount to approximately (4 ± 5)% and (–5 ± 3)% without and with pseudorapidity gaps, respectively, in 20–50% centrality Au + Au collisions at √sNN = 200 GeV.

Research Organization:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Organization:
China Hubei Province Department of Education; China Ministry of Science and Technology; China National Natural Science Foundation; USDOE
Grant/Contract Number:
SC0012910
OSTI ID:
1875392
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 105; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (69)

A general model for jet fragmentation journal December 1983
Strong P, CP, T violations in heavy-ion collisions journal December 1985
Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 2.76 and 5.02 TeV journal September 2020
Flow study in relativistic nuclear collisions by Fourier expansion of azimuthal particle distributions journal May 1996
Methods for a blind analysis of isobar data collected by the STAR collaboration journal May 2021
HIJING 1.0: A Monte Carlo program for parton and particle production in high energy hadronic and nuclear collisions journal December 1994
High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4 journal August 1994
High-energy-physics event generation with Pythia 6.1 journal April 2001
The STAR event plane detector
  • Adams, J.; Ewigleben, A.; Garrett, S.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 968 https://doi.org/10.1016/j.nima.2020.163970
journal July 2020
The effects of topological charge change in heavy ion collisions: “Event by event and violation” journal May 2008
Measurements of the chiral magnetic effect with background isolation in 200 GeV Au+Au collisions at STAR journal February 2019
Search for CME in U+U and Au+Au collisions in STAR with different approaches of handling backgrounds journal January 2021
Parity violation in hot QCD: Why it can happen, and how to look for it journal February 2006
Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions journal March 2012
Ultra-relativistic nuclear collisions: Event shape engineering journal February 2013
Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in s NN = 200   GeV Au+Au collisions journal May 2015
Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at s NN = 2.76  TeV journal February 2018
Charge-dependent pair correlations relative to a third particle in p + Au and d + Au collisions at RHIC journal November 2019
Revisit the chiral magnetic effect expectation in isobaric collisions at the relativistic heavy ion collider journal September 2021
Matter in extremis: ultrarelativistic nuclear collisions at RHIC journal April 2005
Experimental searches for the chiral magnetic effect in heavy-ion collisions journal July 2019
Electromagnetic fields and anomalous transports in heavy-ion collisions—a pedagogical review journal June 2016
Status of the chiral magnetic effect and collisions of isobars journal June 2017
Varying the chiral magnetic effect relative to flow in a single nucleus-nucleus collision journal July 2018
Examination of flow and nonflow factorization methods in small collision systems journal August 2019
hijing can describe the anisotropy-scaled charge-dependent correlations at the BNL Relativistic Heavy Ion Collider journal March 2020
Search for the chiral magnetic effect with isobar collisions at s N N = 200 GeV by the STAR Collaboration at the BNL Relativistic Heavy Ion Collider journal January 2022
Methods for analyzing anisotropic flow in relativistic nuclear collisions journal September 1998
Multiphase transport model for relativistic nuclear collisions journal May 2000
Is the analysis of flow at the CERN Super Proton Synchrotron reliable? journal August 2000
Partonic effects on the elliptic flow at relativistic heavy ion collisions journal February 2002
Parity violation in hot QCD: How to detect it journal November 2004
Multiphase transport model for relativistic heavy ion collisions journal December 2005
Momentum conservation and correlation analyses in heavy-ion collisions at ultrarelativistic energies journal February 2007
Importance of correlations and fluctuations on the initial source eccentricity in high-energy nucleus-nucleus collisions journal January 2008
Hadronic resonance production in d + Au collisions at s NN = 200 GeV measured at the BNL Relativistic Heavy Ion Collider journal October 2008
Systematic measurements of identified particle spectra in pp , d + Au , and Au + Au collisions at the STAR detector journal March 2009
Effect of flow fluctuations and nonflow on elliptic flow methods journal July 2009
Remarks on possible local parity violation in heavy ion collisions journal March 2010
Non-flow correlations and elliptic flow fluctuations in Au + Au collisions at s NN = 200 GeV journal March 2010
Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy-ion collisions journal May 2010
Effects of cluster particle correlations on local parity violation observables journal June 2010
Nonflow correlations in a cluster model journal June 2010
Charge conservation at energies available at the BNL Relativistic Heavy Ion Collider and contributions to local parity violation observables journal January 2011
Event-by-event azimuthal anisotropy of jet quenching in relativistic heavy ion collisions journal April 2013
Fluctuations of charge separation perpendicular to the event plane and local parity violation in s NN = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider journal December 2013
Measurement of charge multiplicity asymmetry correlations in high-energy nucleus-nucleus collisions at s N N = 200 GeV journal April 2014
Evolution of transverse flow and effective temperatures in the parton phase from a multiphase transport model journal July 2014
Jet quenching effects on the direct, elliptic, and triangular flow at energies available at the BNL Relativistic Heavy Ion Collider journal August 2014
Transverse energy production and charged-particle multiplicity at midrapidity in various systems from s N N = 7.7 to 200 GeV journal February 2016
Challenges in flow background removal in search for the chiral magnetic effect journal May 2017
Constraints on the chiral magnetic effect using charge-dependent azimuthal correlations in p Pb and PbPb collisions at the CERN Large Hadron Collider journal April 2018
hijing: A Monte Carlo model for multiple jet production in pp , pA , and AA collisions journal December 1991
Chiral magnetic effect journal October 2008
Vacuum stability and vacuum excitation in a spin-0 field theory journal April 1974
Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation journal December 2009
Charge separation relative to the reaction plane in Pb-Pb collisions at s N N = 2.76     TeV journal January 2013
Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au + Au Collisions at RHIC journal July 2014
Elliptic and Triangular Flow in p -Pb and Peripheral Pb-Pb Collisions from Parton Scatterings journal December 2014
Observation of Charge-Dependent Azimuthal Correlations in p − Pb Collisions and Its Implication for the Search for the Chiral Magnetic Effect journal March 2017
Importance of Isobar Density Distributions on the Chiral Magnetic Effect Search journal July 2018
Possibility of Spontaneous Parity Violation in Hot QCD journal July 1998
Identified Particle Distributions in p p and Au + Au Collisions at s N N = 200     GeV journal March 2004
System Size, Energy, Pseudorapidity, and Centrality Dependence of Elliptic Flow journal June 2007
Isolating the chiral magnetic effect from backgrounds by pair invariant mass journal February 2019
Anisotropic flow and jet quenching in relativistic nuclear collisions journal February 2015
FEMTOSCOPY IN RELATIVISTIC HEAVY ION COLLISIONS: Two Decades of Progress journal December 2005
Pair invariant mass to isolate background in the search for the chiral magnetic effect in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$= 200 GeV collection January 2022
Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy ion collisions collection January 2020