Collisional energy loss and the Chiral Magnetic Effect
arXiv:2012.06089 · doi:10.1103/PhysRevC.104.034903
Abstract
Collisional energy loss of a fast particle in a medium is mostly due to the medium polarization by the electromagnetic fields of the particle. A small fraction of energy is carried away by the Cherenkov radiation. In chiral medium there is an additional contribution to the energy loss due to induction of the anomalous current proportional to the magnetic field. It causes the particle to lose energy mostly in the form of the \emph{chiral} Cherenkov radiation. We employ classical electrodynamics, adequate in a wide range of particle energies, to compute the collisional energy loss by a fast particle in a homogenous chiral plasma and apply the results to Quark-Gluon Plasma and a Weyl semimetal. In the later case photon spectrum is strongly enhanced in the ultraviolet and X-ray regions which makes it amenable to experimental investigation. Our main observation is that while the collisional energy loss in a non-chiral medium is a slow, at most logarithmic, function of energy , the chiral Cherenkov radiation is proportional to when the recoil is neglected and to when it is taken into account.
arXiv comment13 pages, 2 figures
References in corpus (38)
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- The Chiral Magnetic Effect
- The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
- Experimental discovery of Weyl semimetal TaAs
- Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
- Modern tests of Lorentz invariance
- Topological response in Weyl semimetals and the chiral anomaly
- Parity violation in hot QCD: why it can happen, and how to look for it
- Charge separation induced by P-odd bubbles in QCD matter
- Lorentz violation at high energy: concepts, phenomena and astrophysical constraints
- Chiral Magnetic conductivity
- Thermal dilepton rate and electrical conductivity: An analysis of vector current correlation functions in quenched lattice QCD
- Consequences of a condensed matter realization of Lorentz violating QED in Weyl semi-metals
- Topologically induced local P and CP violation in QCD x QED
- Vacuum Cherenkov radiation
- The Cherenkov effect in Lorentz-violating vacua
- Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation
- Emergent CPT violation from the splitting of Fermi points
- Vacuum Photon Splitting in Lorentz-Violating Quantum Electrodynamics
- Electromagnetic fields with electric and chiral magnetic conductivities in heavy ion collisions
- Electromagnetic field and the chiral magnetic effect in the quark-gluon plasma
- Low-Dimensional Long-Range Topological Charge Structure in the QCD Vacuum
- Cerenkov Radiation in a Lorentz-Violating and Birefringent Vacuum
- Exploring the structure of the quenched QCD vacuum with overlap fermions
- Energy losses in a hot plasma revisited
- Lorentz-CPT violation, radiative corrections and finite temperature
- The Negativity of the Overlap-Based Topological Charge Density Correlator in Pure-Glue QCD and the Non-Integrable Nature of its Contact Part
- Vacuum structure revealed by over-improved stout-link smearing compared with the overlap analysis for quenched QCD
- QCD as a topologically ordered system
- Inherently Global Nature of Topological Charge Fluctuations in QCD
- Three dimensional vacuum domains in four dimensional SU(2) gluodynamics
- Topology of dynamical lattice configurations including results from dynamical overlap fermions
- The Reality of the Fundamental Topological Structure in the QCD Vacuum
- Radiative instability of quantum electrodynamics in chiral matter
- P odd fluctuations and Long Range Order in Heavy Ion Collisions. Deformed QCD as a Toy Model
- Chiral Cherenkov and chiral transition radiation in anisotropic matter
- Transition radiation as a probe of chiral anomaly
- Electromagnetic field of ultrarelativistic charge in topologically random nuclear matter