Isovector and flavor-diagonal charges of the nucleon
We present an update on the status of the calculations of isovector and flavor-diagonal charges of the nucleon. The calculations of the isovector charges are being done using ten 2+1+1-flavor HISQ ensembles generated by the MILC collaboration covering the range of lattice spacings a ≈ 0.12, 0.09, 0....
| 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/201817506029 |
| _version_ | 1818740345589989376 |
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| author | Gupta Rajan Bhattacharya Tanmoy Jang Yong-Chull Lin Huey-Wen Yoon Boram |
| author_facet | Gupta Rajan Bhattacharya Tanmoy Jang Yong-Chull Lin Huey-Wen Yoon Boram |
| author_sort | Gupta Rajan |
| collection | DOAJ |
| description | We present an update on the status of the calculations of isovector and flavor-diagonal charges of the nucleon. The calculations of the isovector charges are being done using ten 2+1+1-flavor HISQ ensembles generated by the MILC collaboration covering the range of lattice spacings a ≈ 0.12, 0.09, 0.06 fm and pion masses Mπ ≈ 310, 220, 130 MeV. Excited-states contamination is controlled by using four-state fits to two-point correlators and three-states fits to the three-point correlators. The calculations of the disconnected diagrams needed to estimate flavor-diagonal charges are being done on a subset of six ensembles using the stocastic method. Final results are obtained using a simultaneous fit in M2π, the lattice spacing a and the finite volume parameter MπL keeping only the leading order corrections. |
| first_indexed | 2024-12-18T01:39:15Z |
| format | Article |
| id | doaj.art-76b07d542f0746088b80f78755dc8b71 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T01:39:15Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-76b07d542f0746088b80f78755dc8b712022-12-21T21:25:24ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011750602910.1051/epjconf/201817506029epjconf_lattice2018_06029Isovector and flavor-diagonal charges of the nucleonGupta RajanBhattacharya TanmoyJang Yong-ChullLin Huey-WenYoon BoramWe present an update on the status of the calculations of isovector and flavor-diagonal charges of the nucleon. The calculations of the isovector charges are being done using ten 2+1+1-flavor HISQ ensembles generated by the MILC collaboration covering the range of lattice spacings a ≈ 0.12, 0.09, 0.06 fm and pion masses Mπ ≈ 310, 220, 130 MeV. Excited-states contamination is controlled by using four-state fits to two-point correlators and three-states fits to the three-point correlators. The calculations of the disconnected diagrams needed to estimate flavor-diagonal charges are being done on a subset of six ensembles using the stocastic method. Final results are obtained using a simultaneous fit in M2π, the lattice spacing a and the finite volume parameter MπL keeping only the leading order corrections.https://doi.org/10.1051/epjconf/201817506029 |
| spellingShingle | Gupta Rajan Bhattacharya Tanmoy Jang Yong-Chull Lin Huey-Wen Yoon Boram Isovector and flavor-diagonal charges of the nucleon EPJ Web of Conferences |
| title | Isovector and flavor-diagonal charges of the nucleon |
| title_full | Isovector and flavor-diagonal charges of the nucleon |
| title_fullStr | Isovector and flavor-diagonal charges of the nucleon |
| title_full_unstemmed | Isovector and flavor-diagonal charges of the nucleon |
| title_short | Isovector and flavor-diagonal charges of the nucleon |
| title_sort | isovector and flavor diagonal charges of the nucleon |
| url | https://doi.org/10.1051/epjconf/201817506029 |
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