Study On Chiral Magnetic Effects In Relativistic Heavy Ion Collision Energy Scanning

Based on the latest relativistic charge separation experiments under the scanning of ion collision energy,the chiral magnetic effect under the scanning of the centroid system energy is studied.The time evolution of the background magnetic field produced by the relativistic ions' non-concentric collisions under different centroid system energies is quite different.The time evolution of this background magnetic field has a great influence on the quantitative study of chiral magnetic effects.Under the background of the imbalanced sign,the electric charge is separated along the magnetic field direction to produce the electromagnetic current,which is called the chiral magnetic effect.In this paper,the formula of relativistic ion colliding vacuum magnetic field is given,and the thickness of nucleus in colliding beam direction is considered.Then the time evolution of the magnetic field under the energy of different centric systems is calculated numerically and compared with the time evolution of the magnetic field under vacuum.It is found that the higher the energy of the colliding centroid system is,the higher the initial magnetic field strength is,but the faster the attenuation rate is.The quark-gluon plasma can delay the attenuation of the magnetic field strength under the energy of different centroid systems,which greatly improves the possibility of detecting the signal of the chiral magnetic effect in the relativistic ion collision.Based on the latest theory of relativity ion collision energy charge separation under the scan results,this article uses the quantitative model to estimate the energy charge separation phenomenon under the scanning,the time evolution of the magnetic field of considering the response of the quark-gluon plasma,and with the RHIC energy beam scanning and the LHC energies of minus the background related factor H experimental results are compared.It is found that the calculated signal of chiral magnetic effect shows a central tendency and energy dependence of the centroid system,which is qualitatively consistent with the experimental measurement of charge separation.In this paper,the time evolution of the chiral electromagnetic flow under the energies of RHIC and LHC is studied in the vacuum magnetic field and the quark-gluon plasma response magnetic field.Phenomenological analysis shows that the time integral electromagnetic flow is the largest in the vicinity of the collision energy 39 Ge V.At RHIC and LHC energies,the qualitative trend of the induced electromagnetic flow was consistent with the results of relativistic ion collision energy scanning experiments.