Parton physics from a heavy-quark operator product expansion: Dynamical lattice QCD calculation of moments of the pion and kaon light-cone distribution amplitudes
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908865322287104 |
|---|---|
| author | Chang, S. -P. Alex Detmold, William Grebe, Anthony V. Gutiérrez-Escobari, Matías Kanamori, Issaku Lin, C. -J. David Perry, Robert J. Zhao, Yong |
| author_facet | Chang, S. -P. Alex Detmold, William Grebe, Anthony V. Gutiérrez-Escobari, Matías Kanamori, Issaku Lin, C. -J. David Perry, Robert J. Zhao, Yong |
| contents | The light-cone distribution amplitude (LCDA) is a fundamental non-perturbative quantity for understanding hadron structure and exclusive scattering processes. We report on our calculation of the pion and kaon LCDAs using the heavy-quark operator product expansion (HOPE) framework. This method employs an OPE analysis of hadronic amplitudes through the inclusion of a fictitious valence heavy quark. In these proceedings, we report progress on the determination of the first three nontrivial Mellin moments of the kaon LCDAs from dynamical lattice QCD calculations, and we summarize the recently published continuum-limit result for the pion fourth Mellin moment obtained in the quenched approximation, thereby demonstrating the feasibility of the HOPE method for accessing higher moments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_03688 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Parton physics from a heavy-quark operator product expansion: Dynamical lattice QCD calculation of moments of the pion and kaon light-cone distribution amplitudes Chang, S. -P. Alex Detmold, William Grebe, Anthony V. Gutiérrez-Escobari, Matías Kanamori, Issaku Lin, C. -J. David Perry, Robert J. Zhao, Yong High Energy Physics - Lattice The light-cone distribution amplitude (LCDA) is a fundamental non-perturbative quantity for understanding hadron structure and exclusive scattering processes. We report on our calculation of the pion and kaon LCDAs using the heavy-quark operator product expansion (HOPE) framework. This method employs an OPE analysis of hadronic amplitudes through the inclusion of a fictitious valence heavy quark. In these proceedings, we report progress on the determination of the first three nontrivial Mellin moments of the kaon LCDAs from dynamical lattice QCD calculations, and we summarize the recently published continuum-limit result for the pion fourth Mellin moment obtained in the quenched approximation, thereby demonstrating the feasibility of the HOPE method for accessing higher moments. |
| title | Parton physics from a heavy-quark operator product expansion: Dynamical lattice QCD calculation of moments of the pion and kaon light-cone distribution amplitudes |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2603.03688 |