Long-range S -wave DD∗ interaction in covariant chiral effective field theory

Qing Yu Zhai; Ming Zhu Liu; Jun Xu Lu; Li Sheng Geng

doi:10.1103/PhysRevD.109.034015

Long-range S -wave DD∗ interaction in covariant chiral effective field theory

Qing Yu Zhai
, Ming Zhu Liu
, Jun Xu Lu^*
, Li Sheng Geng^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Motivated by the recent lattice QCD study of the DD∗ interaction at unphysical quark masses, we perform a theoretical study of the DD∗ interaction in covariant chiral effective field theory. In particular, we calculate the relevant leading-order two-pion exchange contributions. The results compare favorably with the lattice QCD results, supporting the conclusion that the intermediate-range DD∗ interaction is dominated by two-pion exchanges and the one-pion exchange contribution is absent. At a quantitative level, the covariant chiral perturbation theory results agree better with the lattice QCD results than their nonrelativistic counterparts, showing the relevance of relativistic corrections in the charm sector.

Original language	English
Article number	034015
Journal	Physical Review D
Volume	109
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.109.034015
State	Published - 1 Feb 2024

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title = "Long-range S -wave DD∗ interaction in covariant chiral effective field theory",

abstract = "Motivated by the recent lattice QCD study of the DD∗ interaction at unphysical quark masses, we perform a theoretical study of the DD∗ interaction in covariant chiral effective field theory. In particular, we calculate the relevant leading-order two-pion exchange contributions. The results compare favorably with the lattice QCD results, supporting the conclusion that the intermediate-range DD∗ interaction is dominated by two-pion exchanges and the one-pion exchange contribution is absent. At a quantitative level, the covariant chiral perturbation theory results agree better with the lattice QCD results than their nonrelativistic counterparts, showing the relevance of relativistic corrections in the charm sector.",

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T1 - Long-range S -wave DD∗ interaction in covariant chiral effective field theory

AU - Zhai, Qing Yu

AU - Liu, Ming Zhu

AU - Lu, Jun Xu

AU - Geng, Li Sheng

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"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.

PY - 2024/2/1

Y1 - 2024/2/1

N2 - Motivated by the recent lattice QCD study of the DD∗ interaction at unphysical quark masses, we perform a theoretical study of the DD∗ interaction in covariant chiral effective field theory. In particular, we calculate the relevant leading-order two-pion exchange contributions. The results compare favorably with the lattice QCD results, supporting the conclusion that the intermediate-range DD∗ interaction is dominated by two-pion exchanges and the one-pion exchange contribution is absent. At a quantitative level, the covariant chiral perturbation theory results agree better with the lattice QCD results than their nonrelativistic counterparts, showing the relevance of relativistic corrections in the charm sector.

AB - Motivated by the recent lattice QCD study of the DD∗ interaction at unphysical quark masses, we perform a theoretical study of the DD∗ interaction in covariant chiral effective field theory. In particular, we calculate the relevant leading-order two-pion exchange contributions. The results compare favorably with the lattice QCD results, supporting the conclusion that the intermediate-range DD∗ interaction is dominated by two-pion exchanges and the one-pion exchange contribution is absent. At a quantitative level, the covariant chiral perturbation theory results agree better with the lattice QCD results than their nonrelativistic counterparts, showing the relevance of relativistic corrections in the charm sector.

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U2 - 10.1103/PhysRevD.109.034015

DO - 10.1103/PhysRevD.109.034015

M3 - 文章

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SN - 2470-0010

VL - 109

JO - Physical Review D

JF - Physical Review D

IS - 3

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ER -

Long-range S -wave DD∗ interaction in covariant chiral effective field theory

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