Does the chiral magnetic effect change the dynamic universality class in QCD?
Abstract In QCD matter under an external magnetic field, the chiral magnetic effect (CME) leads to the collective gapless mode called the chiral magnetic wave (CMW). Since dynamic universality class generally depends on low-energy gapless modes, it is nontrivial whether the CME and the resulting CMW...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2018)108 |
| _version_ | 1818201068318752768 |
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| author | Masaru Hongo Noriyuki Sogabe Naoki Yamamoto |
| author_facet | Masaru Hongo Noriyuki Sogabe Naoki Yamamoto |
| author_sort | Masaru Hongo |
| collection | DOAJ |
| description | Abstract In QCD matter under an external magnetic field, the chiral magnetic effect (CME) leads to the collective gapless mode called the chiral magnetic wave (CMW). Since dynamic universality class generally depends on low-energy gapless modes, it is nontrivial whether the CME and the resulting CMW change that of the second-order chiral phase transition in QCD. To address this question, we study the critical dynamics near the chiral phase transition in massless two-flavor QCD under an external magnetic field. By performing the dynamic renormalization-group analysis within the ϵ expansion, we find that the presence of the CME changes the dynamic universality class to that of model A. We also show that the transport coefficient of the CME is not renormalized by the critical fluctuations of the order parameter. |
| first_indexed | 2024-12-12T02:47:40Z |
| format | Article |
| id | doaj.art-7b8220ff72d44f8cad6373636dde7192 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-12T02:47:40Z |
| publishDate | 2018-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-7b8220ff72d44f8cad6373636dde71922022-12-22T00:40:58ZengSpringerOpenJournal of High Energy Physics1029-84792018-11-0120181113310.1007/JHEP11(2018)108Does the chiral magnetic effect change the dynamic universality class in QCD?Masaru Hongo0Noriyuki Sogabe1Naoki Yamamoto2iTHEMS Program, RIKENDepartment of Physics, Keio UniversityDepartment of Physics, Keio UniversityAbstract In QCD matter under an external magnetic field, the chiral magnetic effect (CME) leads to the collective gapless mode called the chiral magnetic wave (CMW). Since dynamic universality class generally depends on low-energy gapless modes, it is nontrivial whether the CME and the resulting CMW change that of the second-order chiral phase transition in QCD. To address this question, we study the critical dynamics near the chiral phase transition in massless two-flavor QCD under an external magnetic field. By performing the dynamic renormalization-group analysis within the ϵ expansion, we find that the presence of the CME changes the dynamic universality class to that of model A. We also show that the transport coefficient of the CME is not renormalized by the critical fluctuations of the order parameter.http://link.springer.com/article/10.1007/JHEP11(2018)108Anomalies in Field and String TheoriesPhase Diagram of QCDQuarkGluon PlasmaRenormalization Group |
| spellingShingle | Masaru Hongo Noriyuki Sogabe Naoki Yamamoto Does the chiral magnetic effect change the dynamic universality class in QCD? Journal of High Energy Physics Anomalies in Field and String Theories Phase Diagram of QCD QuarkGluon Plasma Renormalization Group |
| title | Does the chiral magnetic effect change the dynamic universality class in QCD? |
| title_full | Does the chiral magnetic effect change the dynamic universality class in QCD? |
| title_fullStr | Does the chiral magnetic effect change the dynamic universality class in QCD? |
| title_full_unstemmed | Does the chiral magnetic effect change the dynamic universality class in QCD? |
| title_short | Does the chiral magnetic effect change the dynamic universality class in QCD? |
| title_sort | does the chiral magnetic effect change the dynamic universality class in qcd |
| topic | Anomalies in Field and String Theories Phase Diagram of QCD QuarkGluon Plasma Renormalization Group |
| url | http://link.springer.com/article/10.1007/JHEP11(2018)108 |
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