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Title: Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions

Abstract

Here, we investigate the charge-dependent flow induced by magnetic and electric fields in heavy ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU framework, and add the magnetic and electric fields as well as the electric currents they generate in a perturbative fashion. We confirm the previously reported effect of the electromagnetically induced currents, that is a charge-odd directed flow Δv 1 that is odd in rapidity, noting that it is induced by magnetic fields (à la Faraday and Lorentz) and by electric fields (the Coulomb field from the charged spectators). In addition, we find a charge-odd Δv 3 that is also odd in rapidity and that has a similar physical origin. We furthermore show that the electric field produced by the net charge density of the plasma drives rapidity-even charge-dependent contributions to the radial flow < p T > and the elliptic flow Δv 2. Although their magnitudes are comparable to the charge-odd Δv 1 and Δv 3, they have a different physical origin, namely the Coulomb forces within the plasma.

Authors:
 [1];  [2];  [1];  [3];  [4]
  1. Utrecht Univ., Utrecht (The Netherlands)
  2. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1482286
Alternate Identifier(s):
OSTI ID: 1484445
Report Number(s):
BNL-209638-2018-JAAM
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
SC0012704; SC0011090; FG-88ER40388; AC02-98CH10886
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Gürsoy, Umut, Kharzeev, Dmitri E., Marcus, Eric, Rajagopal, Krishna, and Shen, Chun. Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.98.055201.
Gürsoy, Umut, Kharzeev, Dmitri E., Marcus, Eric, Rajagopal, Krishna, & Shen, Chun. Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions. United States. doi:10.1103/PhysRevC.98.055201.
Gürsoy, Umut, Kharzeev, Dmitri E., Marcus, Eric, Rajagopal, Krishna, and Shen, Chun. Thu . "Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions". United States. doi:10.1103/PhysRevC.98.055201.
@article{osti_1482286,
title = {Charge-dependent flow induced by magnetic and electric fields in heavy ion collisions},
author = {Gürsoy, Umut and Kharzeev, Dmitri E. and Marcus, Eric and Rajagopal, Krishna and Shen, Chun},
abstractNote = {Here, we investigate the charge-dependent flow induced by magnetic and electric fields in heavy ion collisions. We simulate the evolution of the expanding cooling droplet of strongly coupled plasma hydrodynamically, using the iEBE-VISHNU framework, and add the magnetic and electric fields as well as the electric currents they generate in a perturbative fashion. We confirm the previously reported effect of the electromagnetically induced currents, that is a charge-odd directed flow Δv1 that is odd in rapidity, noting that it is induced by magnetic fields (à la Faraday and Lorentz) and by electric fields (the Coulomb field from the charged spectators). In addition, we find a charge-odd Δv3 that is also odd in rapidity and that has a similar physical origin. We furthermore show that the electric field produced by the net charge density of the plasma drives rapidity-even charge-dependent contributions to the radial flow < pT > and the elliptic flow Δv2. Although their magnitudes are comparable to the charge-odd Δv1 and Δv3, they have a different physical origin, namely the Coulomb forces within the plasma.},
doi = {10.1103/PhysRevC.98.055201},
journal = {Physical Review C},
number = 5,
volume = 98,
place = {United States},
year = {Thu Nov 15 00:00:00 EST 2018},
month = {Thu Nov 15 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevC.98.055201

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