Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

Pang L-G, Endrödi G, Petersen H (2016)
Physical Review C 93(4): 044919.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Pang, Long-Gang; Endrödi, GergelyUniBi; Petersen, Hannah
Abstract / Bemerkung
In off-central heavy-ion collisions, quark-gluon plasma (QGP) is exposed to the strongest magnetic fields ever created in the universe. Because of the paramagnetic nature of the QGP at high temperatures, the spatially inhomogeneous magnetic field configuration exerts an anisotropic force density that competes with the pressure gradients resulting from purely geometric effects. In this paper, we simulate (3+1)-dimensional ideal hydrodynamics with external magnetic fields to estimate the effect of this force density on the anisotropic expansion of the QGP in collisions at the Relativistic Heavy Ion Collider and at the Large Hadron Collider (LHC). While negligible for quickly decaying magnetic fields, we find that long-lived fields generate a substantial force density that suppresses the momentum anisotropy of the plasma by up to 20% at the LHC energy and also leaves its imprint on the elliptic flow v2 of charged pions.
Erscheinungsjahr
2016
Zeitschriftentitel
Physical Review C
Band
93
Ausgabe
4
Art.-Nr.
044919
ISSN
2469-9985
eISSN
2469-9993
Page URI
https://pub.uni-bielefeld.de/record/2955738

Zitieren

Pang L-G, Endrödi G, Petersen H. Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Physical Review C. 2016;93(4): 044919.
Pang, L. - G., Endrödi, G., & Petersen, H. (2016). Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Physical Review C, 93(4), 044919. https://doi.org/10.1103/PhysRevC.93.044919
Pang, L. - G., Endrödi, G., and Petersen, H. (2016). Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Physical Review C 93:044919.
Pang, L.-G., Endrödi, G., & Petersen, H., 2016. Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Physical Review C, 93(4): 044919.
L.-G. Pang, G. Endrödi, and H. Petersen, “Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider”, Physical Review C, vol. 93, 2016, : 044919.
Pang, L.-G., Endrödi, G., Petersen, H.: Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Physical Review C. 93, : 044919 (2016).
Pang, Long-Gang, Endrödi, Gergely, and Petersen, Hannah. “Magnetic-field-induced squeezing effect at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider”. Physical Review C 93.4 (2016): 044919.

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