Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD
We compute the Dirac spectral density of QCD in a wide range of eigenvalues by using a stochastic method. We use 2+1 flavor lattice ensembles generated with Mobius domain-wall fermion at three lattice spacings (a = 0:083; 0:055; 0:044 fm) to estimate the continuum limit. The discretization effect ca...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201817510003 |
| _version_ | 1818596862933860352 |
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| author | Nakayama Katsumasa Hashimoto Shoji Fukaya Hidenori |
| author_facet | Nakayama Katsumasa Hashimoto Shoji Fukaya Hidenori |
| author_sort | Nakayama Katsumasa |
| collection | DOAJ |
| description | We compute the Dirac spectral density of QCD in a wide range of eigenvalues by using a stochastic method. We use 2+1 flavor lattice ensembles generated with Mobius domain-wall fermion at three lattice spacings (a = 0:083; 0:055; 0:044 fm) to estimate the continuum limit. The discretization effect can be minimized by a generalization of the valence domain-wall fermion. The spectral density at relatively high eigenvalues can be matched with perturbation theory. We compare the lattice results with the perturbative expansion available to O(α4s). |
| first_indexed | 2024-12-16T11:38:40Z |
| format | Article |
| id | doaj.art-04a35a4b14df4c7188f4eb84709db4a5 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T11:38:40Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-04a35a4b14df4c7188f4eb84709db4a52022-12-21T22:32:59ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011751000310.1051/epjconf/201817510003epjconf_lattice2018_10003Dirac spectral density and mass anomalous dimension in 2+1 flavor QCDNakayama KatsumasaHashimoto ShojiFukaya HidenoriWe compute the Dirac spectral density of QCD in a wide range of eigenvalues by using a stochastic method. We use 2+1 flavor lattice ensembles generated with Mobius domain-wall fermion at three lattice spacings (a = 0:083; 0:055; 0:044 fm) to estimate the continuum limit. The discretization effect can be minimized by a generalization of the valence domain-wall fermion. The spectral density at relatively high eigenvalues can be matched with perturbation theory. We compare the lattice results with the perturbative expansion available to O(α4s).https://doi.org/10.1051/epjconf/201817510003 |
| spellingShingle | Nakayama Katsumasa Hashimoto Shoji Fukaya Hidenori Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD EPJ Web of Conferences |
| title | Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD |
| title_full | Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD |
| title_fullStr | Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD |
| title_full_unstemmed | Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD |
| title_short | Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD |
| title_sort | dirac spectral density and mass anomalous dimension in 2 1 flavor qcd |
| url | https://doi.org/10.1051/epjconf/201817510003 |
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