Magnetic field influence on the early-time dynamics of heavy-ion collisions

Magnetic field influence on the early-time dynamics of heavy-ion collisions In high-energy heavy-ion collisions, the magnetic field is very strong right after the nuclei penetrate each other and a nonequilibrium system of quarks and gluons builds up. Even though quarks might not be very abundant initially, their dynamics must necessarily be influenced by the Lorentz force. Employing the (3+1)-d partonic cascade Boltzmann approach to multiparton scatterings (BAMPS), we show that the circular Larmor movement of the quarks leads to a strong positive anisotropic flow of quarks at very soft transverse momenta. We explore the regions where the effect is visible and explicitly show how collisions damp the effect. As a possible application, we look at photon production from the flowing nonequilibrium medium. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

Magnetic field influence on the early-time dynamics of heavy-ion collisions

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Magnetic field influence on the early-time dynamics of heavy-ion collisions

Abstract

In high-energy heavy-ion collisions, the magnetic field is very strong right after the nuclei penetrate each other and a nonequilibrium system of quarks and gluons builds up. Even though quarks might not be very abundant initially, their dynamics must necessarily be influenced by the Lorentz force. Employing the (3+1)-d partonic cascade Boltzmann approach to multiparton scatterings (BAMPS), we show that the circular Larmor movement of the quarks leads to a strong positive anisotropic flow of quarks at very soft transverse momenta. We explore the regions where the effect is visible and explicitly show how collisions damp the effect. As a possible application, we look at photon production from the flowing nonequilibrium medium.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
0556-2813
eISSN
1089-490X
D.O.I.
10.1103/PhysRevC.96.014903
Publisher site
See Article on Publisher Site

Abstract

In high-energy heavy-ion collisions, the magnetic field is very strong right after the nuclei penetrate each other and a nonequilibrium system of quarks and gluons builds up. Even though quarks might not be very abundant initially, their dynamics must necessarily be influenced by the Lorentz force. Employing the (3+1)-d partonic cascade Boltzmann approach to multiparton scatterings (BAMPS), we show that the circular Larmor movement of the quarks leads to a strong positive anisotropic flow of quarks at very soft transverse momenta. We explore the regions where the effect is visible and explicitly show how collisions damp the effect. As a possible application, we look at photon production from the flowing nonequilibrium medium.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Jul 6, 2017

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