IR properties of chiral effects in pionic matter
Abstract
Chiral effects exhibit peculiar universality in idealized theoretical limits. However, they are known to be infrared sensitive and get modified in more realistic settings. In this work we study how the corresponding conductivities vary with the constituent mass. We concentrate on a pionic realization of chiral effects which provides a better control over infrared properties of the theory. The pionic medium is considered at finite vector and axial isospin chemical potentials in the presence of an external magnetic field. This system supports electric and axial isospin currents along the magnetic field which correspond to chiral magnetic and chiral separation effects. We show that these currents are sensitive to the finite mass of the constituents but the conductivities follow a simple scaling with the corresponding charge densities as one would expect for polarization effects. It is argued that this relation can capture the dependence of chiral effects on other infrared parameters. Finally, we briefly comment on the realization of the ’t Hooft matching condition in pionic media at finite densities.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE; LANL Laboratory Directed Research and Development (LDRD) Program; Russian Science Foundation
- OSTI Identifier:
- 1434988
- Alternate Identifier(s):
- OSTI ID: 1441325
- Report Number(s):
- LA-UR-17-31504
Journal ID: ISSN 2470-0010; PRVDAQ; 085020
- Grant/Contract Number:
- AC52-06NA25396; 16-12-10059
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 8; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Atomic and Nuclear Physics
Citation Formats
Avdoshkin, A., Sadofyev, A. V., and Zakharov, V. I. IR properties of chiral effects in pionic matter. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.085020.
Avdoshkin, A., Sadofyev, A. V., & Zakharov, V. I. IR properties of chiral effects in pionic matter. United States. https://doi.org/10.1103/PhysRevD.97.085020
Avdoshkin, A., Sadofyev, A. V., and Zakharov, V. I. Fri .
"IR properties of chiral effects in pionic matter". United States. https://doi.org/10.1103/PhysRevD.97.085020.
@article{osti_1434988,
title = {IR properties of chiral effects in pionic matter},
author = {Avdoshkin, A. and Sadofyev, A. V. and Zakharov, V. I.},
abstractNote = {Chiral effects exhibit peculiar universality in idealized theoretical limits. However, they are known to be infrared sensitive and get modified in more realistic settings. In this work we study how the corresponding conductivities vary with the constituent mass. We concentrate on a pionic realization of chiral effects which provides a better control over infrared properties of the theory. The pionic medium is considered at finite vector and axial isospin chemical potentials in the presence of an external magnetic field. This system supports electric and axial isospin currents along the magnetic field which correspond to chiral magnetic and chiral separation effects. We show that these currents are sensitive to the finite mass of the constituents but the conductivities follow a simple scaling with the corresponding charge densities as one would expect for polarization effects. It is argued that this relation can capture the dependence of chiral effects on other infrared parameters. Finally, we briefly comment on the realization of the ’t Hooft matching condition in pionic media at finite densities.},
doi = {10.1103/PhysRevD.97.085020},
journal = {Physical Review D},
number = 8,
volume = 97,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2018},
month = {Fri Apr 27 00:00:00 EDT 2018}
}
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https://doi.org/10.1103/PhysRevD.97.085020
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