Pang, Long-Gang and Endrodi, Gergely and Petersen, Hannah (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. ISSN 2469-9985, 2469-9993
Full text not available from this repository.Abstract
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 upsilon(2) of charged pions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUARK-GLUON PLASMA; ELECTROMAGNETIC-FIELD; COLLISIONS; FLOW; EVENT; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Apr 2019 06:25 |
| Last Modified: | 05 Apr 2019 06:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3056 |
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