Nonlinear boundary dynamics and chiral symmetry in holographic QCD
In a hard-wall model of holographic QCD, we find that nonlinear boundary dynamics are required in order to maintain the correct pattern of explicit and spontaneous chiral symmetry breaking beyond leading order in the pion fields. With the help of a field redefinition, we relate the requisite nonline...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/72135 |
| _version_ | 1826196176783802368 |
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| author | Wilcox, Ronald James Albrecht, Dylan Erlich, Joshua |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Wilcox, Ronald James Albrecht, Dylan Erlich, Joshua |
| author_sort | Wilcox, Ronald James |
| collection | MIT |
| description | In a hard-wall model of holographic QCD, we find that nonlinear boundary dynamics are required in order to maintain the correct pattern of explicit and spontaneous chiral symmetry breaking beyond leading order in the pion fields. With the help of a field redefinition, we relate the requisite nonlinear boundary conditions to a standard Sturm-Liouville system. Observables insensitive to the chiral limit receive only small corrections in the improved description, and classical calculations in the hard-wall model remain surprisingly accurate. |
| first_indexed | 2024-09-23T10:22:44Z |
| format | Article |
| id | mit-1721.1/72135 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:22:44Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/721352022-09-30T20:41:24Z Nonlinear boundary dynamics and chiral symmetry in holographic QCD Wilcox, Ronald James Albrecht, Dylan Erlich, Joshua Massachusetts Institute of Technology. Department of Mechanical Engineering Wilcox, Ronald James Wilcox, Ronald James In a hard-wall model of holographic QCD, we find that nonlinear boundary dynamics are required in order to maintain the correct pattern of explicit and spontaneous chiral symmetry breaking beyond leading order in the pion fields. With the help of a field redefinition, we relate the requisite nonlinear boundary conditions to a standard Sturm-Liouville system. Observables insensitive to the chiral limit receive only small corrections in the improved description, and classical calculations in the hard-wall model remain surprisingly accurate. National Science Foundation (U.S.) (grant no. PHY-0757481) National Science Foundation (U.S.) (grant no. PHY-1068008) 2012-08-15T13:19:26Z 2012-08-15T13:19:26Z 2012-06 2012-01 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/72135 Albrecht, Dylan, Joshua Erlich, and Ronald Wilcox. “Nonlinear Boundary Dynamics and Chiral Symmetry in Holographic QCD.” Physical Review D 85.11 (2012): 114012. © 2012 American Physical Society. en_US http://dx.doi.org/10.1103/PhysRevD.85.114012 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Wilcox, Ronald James Albrecht, Dylan Erlich, Joshua Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title | Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title_full | Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title_fullStr | Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title_full_unstemmed | Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title_short | Nonlinear boundary dynamics and chiral symmetry in holographic QCD |
| title_sort | nonlinear boundary dynamics and chiral symmetry in holographic qcd |
| url | http://hdl.handle.net/1721.1/72135 |
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