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PhysRevD.99.014514.pdf | 4.18 MB | Adobe PDF | 見る/開く |
タイトル: | Systematics of the HAL QCD potential at low energies in lattice QCD |
著者: | Iritani, Takumi Aoki, Sinya Doi, Takumi Gongyo, Shinya Hatsuda, Tetsuo Ikeda, Yoichi Inoue, Takashi Ishii, Noriyoshi Nemura, Hidekatsu Sasaki, Kenji HAL QCD Collaboration |
著者名の別形: | 青木, 愼也 |
発行日: | 1-Jan-2019 |
出版者: | American Physical Society (APS) |
誌名: | Physical Review D |
巻: | 99 |
号: | 1 |
論文番号: | 014514 |
抄録: | The ΞΞ interaction in the 1S0 channel is studied to examine the convergence of the derivative expansion of the nonlocal HAL QCD potential at the next-to-next-to-leading order (N2LO). We find that (i) the leading order potential from the N2LO analysis provides the scattering phase shifts accurately at low energies, (ii) the full N2LO potential provides only a small correction to the phase shifts even at higher energies below the inelastic threshold, and (iii) the potential determined from the wall quark source at the leading order analysis agrees with the one at the N2LO analysis except at short distances, and thus, it gives correct phase shifts at low energies. We also study the possible systematic uncertainties in the HAL QCD potential, such as the inelastic state contaminations and the finite volume artifact for the potential, and we find that they are well under control for this particular system. |
著作権等: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
URI: | http://hdl.handle.net/2433/250299 |
DOI(出版社版): | 10.1103/PhysRevD.99.014514 |
出現コレクション: | 学術雑誌掲載論文等 |
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