scholarly journals New experimental constrains on chiral magnetic effect using charge-dependent azimuthal correlation in pPb and PbPb collisions at the LHC

2018 ◽  
Vol 172 ◽  
pp. 01004 ◽  
Author(s):  
Zhoudunming Tu
Keyword(s):  
Heavy Ion ◽  
Magnetic Effect ◽  
Azimuthal Anisotropy ◽  
Event Shape ◽  
Azimuthal Correlations ◽  
Ion Collisions ◽  
Chiral Magnetic Effect ◽  
Cms Experiment ◽  
Engineering Technique ◽  
Particle Pairs

Studies of charge-dependent azimuthal correlations for the same- and oppositesign particle pairs are presented in PbPb collisions at 5 TeV and pPb collisions at 5 and 8.16 TeV, with the CMS experiment at the LHC. The azimuthal correlations are evaluated with respect to the second- and also higher-order event planes, as a function of particle pseudorapidity and transverse momentum, and event multiplicity. By employing an event-shape engineering technique, the dependence of correlations on azimuthal anisotropy flow is investigated. Results presented provide new insights to the origin of observed charge-dependent azimuthal correlations, and have important implications to the search for the chiral magnetic effect in heavy ion collisions.

scholarly journals Utilization of event shape in search of the chiral magnetic effect in heavy-ion collisions

2021 ◽  
Vol 104 (6) ◽  
Author(s):  
Ryan Milton ◽  
Gang Wang ◽  
Maria Sergeeva ◽  
Shuzhe Shi ◽  
Jinfeng Liao ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Magnetic Effect ◽  
Event Shape ◽  
Ion Collisions ◽  
Chiral Magnetic Effect

scholarly journals Manipulating strong electromagnetic fields with the average transverse momentum of relativistic nuclear collisions

2021 ◽  
Vol 57 (7) ◽  
Author(s):  
Giuliano Giacalone ◽  
Chun Shen
Keyword(s):  
Magnetic Field ◽  
Transverse Momentum ◽  
Heavy Ion ◽  
High Energy ◽  
Event Shape ◽  
Ion Collisions ◽  
Chiral Magnetic Effect ◽  
The Spectator ◽  
Relativistic Nuclear Collisions ◽  
The Magnetic Field

AbstractWe show that an event-shape engineering based on the mean transverse momentum of charged hadrons, $$[p_t]$$ [ p t ] , provides an optimal handle on the strength of the magnetic field created in central heavy-ion collisions at high energy. This is established through quantitative evaluations of the correlation existing between the event-by-event magnetic field produced by the spectator protons in 5.02 TeV Pb + Pb collisions and the event-by-event $$[p_t]$$ [ p t ] at a given collision centrality. We argue that the event selection based on $$[p_t]$$ [ p t ] provides a better handle on the magnetic field than the more traditional selection based on the event ellipticities. Advantages brought by this new method for the experimental search of the chiral magnetic effect are discussed.

scholarly journals Far from equilibrium Chiral Magnetic Effect in Strong Magnetic Fields from Holography

2022 ◽  
Vol 258 ◽  
pp. 10007
Author(s):  
Sebastian Grieninger ◽  
Sergio Morales-Tejera
Keyword(s):  
Heavy Ion ◽  
Magnetic Effect ◽  
Chiral Anomaly ◽  
Equilibration Time ◽  
Strong Magnetic Fields ◽  
Strongly Coupled ◽  
Anomalous Field ◽  
Ion Collisions ◽  
Chiral Magnetic Effect ◽  
Far From Equilibrium

We study the real time evolution of the chiral magnetic effect out-ofequilibrium in strongly coupled anomalous field theories. We match the parameters of our model to QCD parameters and draw lessons of possible relevance for the realization of the chiral magnetic effect in heavy ion collisions. In particular, we find an equilibration time of about ~ 0:35 fm/c in presence of the chiral anomaly for plasma temperatures of order T ~ 300 - 400 MeV.

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