On the Delta I = 1/2 Rule in Holographic QCD
We study the $\Delta I = 1/2$ rule for kaon decays and the $B_K$ parameter for $K^0 - {\bar K}^0$ mixing in a dual 5-dimensional holographic QCD model. We perform, in the chiral limit, computations of the relevant four-point current-current correlators, which depend upon self-interactions among the...
| Main Authors: | , , , |
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| Format: | Journal article |
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2005
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| _version_ | 1826268605865525248 |
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| author | Hambye, T Hassanain, B March-Russell, J Schvellinger, M |
| author_facet | Hambye, T Hassanain, B March-Russell, J Schvellinger, M |
| author_sort | Hambye, T |
| collection | OXFORD |
| description | We study the $\Delta I = 1/2$ rule for kaon decays and the $B_K$ parameter for $K^0 - {\bar K}^0$ mixing in a dual 5-dimensional holographic QCD model. We perform, in the chiral limit, computations of the relevant four-point current-current correlators, which depend upon self-interactions among the 5D bulk fields. Spontaneous chiral symmetry breaking ($\chi$SB) is realized through boundary conditions on the bulk fields. Numerical results are analyzed in comparison with QCD, chiral perturbation theory ($\chi$PT) and data, finding reasonable agreement with the experimental values of the $g_8$ and $g_{27}$ parameters describing the $\Delta I =1/2,3/2$ decay channels. |
| first_indexed | 2024-03-06T21:12:16Z |
| format | Journal article |
| id | oxford-uuid:3e941450-486a-4090-850a-f307b28f96ed |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:12:16Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:3e941450-486a-4090-850a-f307b28f96ed2022-03-26T14:26:22ZOn the Delta I = 1/2 Rule in Holographic QCDJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3e941450-486a-4090-850a-f307b28f96edSymplectic Elements at Oxford2005Hambye, THassanain, BMarch-Russell, JSchvellinger, MWe study the $\Delta I = 1/2$ rule for kaon decays and the $B_K$ parameter for $K^0 - {\bar K}^0$ mixing in a dual 5-dimensional holographic QCD model. We perform, in the chiral limit, computations of the relevant four-point current-current correlators, which depend upon self-interactions among the 5D bulk fields. Spontaneous chiral symmetry breaking ($\chi$SB) is realized through boundary conditions on the bulk fields. Numerical results are analyzed in comparison with QCD, chiral perturbation theory ($\chi$PT) and data, finding reasonable agreement with the experimental values of the $g_8$ and $g_{27}$ parameters describing the $\Delta I =1/2,3/2$ decay channels. |
| spellingShingle | Hambye, T Hassanain, B March-Russell, J Schvellinger, M On the Delta I = 1/2 Rule in Holographic QCD |
| title | On the Delta I = 1/2 Rule in Holographic QCD |
| title_full | On the Delta I = 1/2 Rule in Holographic QCD |
| title_fullStr | On the Delta I = 1/2 Rule in Holographic QCD |
| title_full_unstemmed | On the Delta I = 1/2 Rule in Holographic QCD |
| title_short | On the Delta I = 1/2 Rule in Holographic QCD |
| title_sort | on the delta i 1 2 rule in holographic qcd |
| work_keys_str_mv | AT hambyet onthedeltai12ruleinholographicqcd AT hassanainb onthedeltai12ruleinholographicqcd AT marchrussellj onthedeltai12ruleinholographicqcd AT schvellingerm onthedeltai12ruleinholographicqcd |