prikaz prve stranice dokumenta Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry
  Download
PDF 948.78 KB
Scientific paper - Original scientific paper
Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry
Universe, 5 (2019), 10; 208. https://doi.org/10.3390/universe5100208
Horvatić, Davor; Kekez, Dalibor; Klabučar, Dubravko

Cite this document

Horvatić, D., Kekez, D. & Klabučar, D. (2019). Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry. Universe, 5. (10). doi: 10.3390/universe5100208

Horvatić, Davor, et al. "Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry." Universe, vol. 5, no. 10, 2019. https://doi.org/10.3390/universe5100208

Horvatić, Davor, Dalibor Kekez and Dubravko Klabučar. "Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry." Universe 5, no. 10 (2019). https://doi.org/10.3390/universe5100208

Horvatić, D., Kekez, D. and Klabučar, D. (2019) 'Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry', Universe, 5(10). doi: 10.3390/universe5100208

Horvatić D, Kekez D, Klabučar D. Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry. Universe [Internet]. 2019 [cited 2024 October 28];5(10). doi: 10.3390/universe5100208

D. Horvatić, D. Kekez and D. Klabučar, "Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry", Universe, vol. 5, no. 10, 2019. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:461436. [Accessed: 28 October 2024]

Please login to the repository to save this object to your list.
Metadata
Title (english)Temperature Dependence of the Axion Mass in a Scenario Where the Restoration of Chiral Symmetry Drives the Restoration of the UA(1) Symmetry
AuthorDavor Horvatić
MBZ: 234511
AuthorDalibor Kekez
MBZ: 107903
AuthorDubravko Klabučar
MBZ: 90094
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The temperature (T) dependence of the axion mass is predicted for T's up to ∼2.3 x the chiral restoration temperature of QCD. The axion is related to the UA(1) anomaly. The squared axion mass ma(T)^2 is, modulo the presently undetermined scale of spontaneous breaking of Peccei-Quinn symmetry fa (squared), equal to QCD topological susceptibility χ(T) for all T. We obtain χ(T) by using quark condensates calculated in two effective Dyson- Schwinger models of nonperturbative QCD. They exhibit the correct chiral behavior, including the dynamical breaking of chiral symmetry and its restoration at high T. This is reflected in the UA(1) symmetry breaking and restoration through χ(T). In our previous studies, such χ(T) yields the T-dependence of the UA(1)- anomaly-influenced masses of η′ and η mesons consistent with experiment. This in turn supports our prediction for the T-dependence of the axion mass. Another support is a rather good agreement with the pertinent lattice results. This agreement is not spoiled by our varying u and d quark mass parameters out of the isospin limit.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleUniverse
Numberingvol. 5, no. 10, 208
p-ISSN2218-1997
DOIhttps://doi.org/10.3390/universe5100208
URN:NBNurn:nbn:hr:217:461436
Publication2019
Document URLhttps://www.mdpi.com/2218-1997/5/10/208
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Received: 2 August 2019; Accepted: 1 October 2019; Published: 8 October 2019.
Created on2020-08-26 19:35:59