Chiral magnetic effect reveals the topology of gauge fields in heavy-ion collisions
Abstract
The topological structure of vacuum is the cornerstone of non-Abelian gauge theories describing strong and electroweak interactions within the standard model of particle physics. However, transitions between different topological sectors of the vacuum (believed to be at the origin of the baryon asymmetry of the Universe) have never been observed directly. An experimental observation of such transitions in quantum chromodynamics (QCD) has become possible in heavy-ion collisions, where the chiral magnetic effect converts the chiral asymmetry (generated by topological transitions in hot QCD matter) into an electric current, under the presence of the magnetic field produced by the colliding ions. The Relativistic Heavy Ion Collider programme on heavy-ion collisions such as the zirconium–zirconium and ruthenium–ruthenium isobars thus has the potential to uncover the topological structure of vacuum in a laboratory experiment. This discovery would have far-reaching implications for the understanding of QCD, the origin of the baryon asymmetry in the present-day Universe, and other areas, including condensed matter physics.
- Authors:
-
- Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
- Indiana Univ., Bloomington, IN (United States). Center for Exploration of Energy and Matter (CEEM)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1763343
- Alternate Identifier(s):
- OSTI ID: 2280822
- Report Number(s):
- BNL-220805-2021-JAAM
Journal ID: ISSN 2522-5820; TRN: US2205953
- Grant/Contract Number:
- SC0012704; FG-88ER40388; PHY-1913729; FG02-88ER40388
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Reviews Physics
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2522-5820
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Kharzeev, Dmitri E., and Liao, Jinfeng. Chiral magnetic effect reveals the topology of gauge fields in heavy-ion collisions. United States: N. p., 2020.
Web. doi:10.1038/s42254-020-00254-6.
Kharzeev, Dmitri E., & Liao, Jinfeng. Chiral magnetic effect reveals the topology of gauge fields in heavy-ion collisions. United States. https://doi.org/10.1038/s42254-020-00254-6
Kharzeev, Dmitri E., and Liao, Jinfeng. Wed .
"Chiral magnetic effect reveals the topology of gauge fields in heavy-ion collisions". United States. https://doi.org/10.1038/s42254-020-00254-6. https://www.osti.gov/servlets/purl/1763343.
@article{osti_1763343,
title = {Chiral magnetic effect reveals the topology of gauge fields in heavy-ion collisions},
author = {Kharzeev, Dmitri E. and Liao, Jinfeng},
abstractNote = {The topological structure of vacuum is the cornerstone of non-Abelian gauge theories describing strong and electroweak interactions within the standard model of particle physics. However, transitions between different topological sectors of the vacuum (believed to be at the origin of the baryon asymmetry of the Universe) have never been observed directly. An experimental observation of such transitions in quantum chromodynamics (QCD) has become possible in heavy-ion collisions, where the chiral magnetic effect converts the chiral asymmetry (generated by topological transitions in hot QCD matter) into an electric current, under the presence of the magnetic field produced by the colliding ions. The Relativistic Heavy Ion Collider programme on heavy-ion collisions such as the zirconium–zirconium and ruthenium–ruthenium isobars thus has the potential to uncover the topological structure of vacuum in a laboratory experiment. This discovery would have far-reaching implications for the understanding of QCD, the origin of the baryon asymmetry in the present-day Universe, and other areas, including condensed matter physics.},
doi = {10.1038/s42254-020-00254-6},
journal = {Nature Reviews Physics},
number = 1,
volume = 3,
place = {United States},
year = {Wed Nov 25 00:00:00 EST 2020},
month = {Wed Nov 25 00:00:00 EST 2020}
}
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