التفاصيل البيبلوغرافية
| العنوان: |
Hybrid renormalization for quasi distribution amplitudes of a light baryon |
| المؤلفون: |
Chao Han, Yushan Su, Wei Wang, Jia-Lu Zhang |
| المصدر: |
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-30 (2023) |
| بيانات النشر: |
SpringerOpen, 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: |
Effective Field Theories of QCD, Lattice QCD, Parton Distributions, Non-Perturbative Renormalization, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: |
Abstract We develop a hybrid scheme to renormalize quasi distribution amplitudes of a light baryon on the lattice, which combines the self-renormalization and ratio scheme. By employing self-renormalization, the UV divergences and linear divergence at large spatial separations in quasi distribution amplitudes are removed without introducing extra nonperturbative effects, while making a ratio with respect to the zero-momentum matrix element can properly remove the UV divergences in small spatial separations. As a specific application, distribution amplitudes of the Λ baryon made of uds are investigated, and the requisite equal-time correlators, which define quasi distribution amplitudes in coordinate space, are perturbatively calculated up to the next-to-leading order in strong coupling constant α s . These perturbative equal-time correlators are used to convert lattice QCD matrix elements to the continuum space during the renormalization process. Subsequently, quasi distribution amplitudes are matched onto lightcone distribution amplitudes by integrating out hard modes and the corresponding hard kernels are derived up to next-to-leading order in α s including the hybrid counterterms. These results are valuable in the lattice-based investigation of the lightcone distribution amplitudes of a light baryon from the first principles of QCD. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1029-8479 |
| Relation: |
https://doaj.org/toc/1029-8479 |
| DOI: |
10.1007/JHEP12(2023)044 |
| URL الوصول: |
https://doaj.org/article/477a28e4e7544f45994bcb56ff40d677 |
| رقم الانضمام: |
edsdoj.477a28e4e7544f45994bcb56ff40d677 |
| قاعدة البيانات: |
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