1+1 dimensional relativistic magnetohydrodynamics with longitudinal acceleration

Duan She (Key Laboratory of Quark and Lepton Physics, Ministry of Education, Wuhan 430079, China; Institute of Particle Physics, Central China Normal University, Wuhan 430079, China) ; Ze Fang Jiang (Key Laboratory of Quark and Lepton Physics, Ministry of Education, Wuhan 430079, China; Institute of Particle Physics, Central China Normal University, Wuhan 430079, China; Department of Physics and Electronic-information Engineering, Hubei Engineering University, Xiaogan 432000, China) ; Defu Hou (Key Laboratory of Quark and Lepton Physics, Ministry of Education, Wuhan 430079, China; Institute of Particle Physics, Central China Normal University, Wuhan 430079, China) ; C. B. Yang (Key Laboratory of Quark and Lepton Physics, Ministry of Education, Wuhan 430079, China; Institute of Particle Physics, Central China Normal University, Wuhan 430079, China)

Nonentral heavy-ion collisions generate the strongest magnetic field of the order of 10181019 Gauss due to the electric current produced by the positively charged spectators that travel at nearly the speed of light. Such transient electromagnetic fields may induce various novel effects in the hydrodynamic description of the quark gluon plasma for noncentral heavy-ion collisions. We investigate the longitudinal acceleration effects on the 1+1 dimensional relativistic magnetohydrodynamics (MHD) with homogenous transverse magnetic fields. Exact solution of such MHD with a special equation of state (EoS) is presented, and we analyze the proper time evolution of the system energy density for general EoS. We find that the longitudinal acceleration parameter λ*, magnetic field decay parameter a, equation of state κ, and initial magnetization σ0 have nontrivial effects on the evolutions of the system energy density and temperature profile.

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      "title": "<math><mrow><mn>1</mn><mo>+</mo><mn>1</mn></mrow></math> dimensional relativistic magnetohydrodynamics with longitudinal acceleration"
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  "abstracts": [
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      "source": "APS", 
      "value": "Nonentral heavy-ion collisions generate the strongest magnetic field of the order of <math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>18</mn></mrow></msup><mi>\u2013</mi><msup><mrow><mn>10</mn></mrow><mrow><mn>19</mn></mrow></msup></mrow></math> Gauss due to the electric current produced by the positively charged spectators that travel at nearly the speed of light. Such transient electromagnetic fields may induce various novel effects in the hydrodynamic description of the quark gluon plasma for noncentral heavy-ion collisions. We investigate the longitudinal acceleration effects on the <math><mrow><mn>1</mn><mo>+</mo><mn>1</mn></mrow></math> dimensional relativistic magnetohydrodynamics (MHD) with homogenous transverse magnetic fields. Exact solution of such MHD with a special equation of state (EoS) is presented, and we analyze the proper time evolution of the system energy density for general EoS. We find that the longitudinal acceleration parameter <math><msup><mi>\u03bb</mi><mo>*</mo></msup></math>, magnetic field decay parameter <math><mi>a</mi></math>, equation of state <math><mi>\u03ba</mi></math>, and initial magnetization <math><msub><mi>\u03c3</mi><mn>0</mn></msub></math> have nontrivial effects on the evolutions of the system energy density and temperature profile."
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Published on:
18 December 2019
Publisher:
APS
Published in:
Physical Review D , Volume 100 (2019)
Issue 11
DOI:
https://doi.org/10.1103/PhysRevD.100.116014
arXiv:
1907.01250
Copyrights:
Published by the American Physical Society
Licence:
CC-BY-4.0

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