دورية أكاديمية
High precision renormalization of the flavour non-singlet Noether currents in lattice QCD with Wilson quarks
| العنوان: | High precision renormalization of the flavour non-singlet Noether currents in lattice QCD with Wilson quarks |
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| المؤلفون: | Mattia Dalla Brida, Tomasz Korzec, Stefan Sint, Pol Vilaseca |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-27 (2019) |
| بيانات النشر: | SpringerOpen, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract We determine the non-perturbatively renormalized axial current for $$\hbox {O}(a)$$ O(a) improved lattice QCD with Wilson quarks. Our strategy is based on the chirally rotated Schrödinger functional and can be generalized to other finite (ratios of) renormalization constants which are traditionally obtained by imposing continuum chiral Ward identities as normalization conditions. Compared to the latter we achieve an error reduction by up to one order of magnitude. Our results have already enabled the setting of the scale for the $${N_{\mathrm{f}}}=2+1$$ Nf=2+1 CLS ensembles (Bruno et al. in Phys Rev D 95(7):074504. arXiv:1608.08900, 2017) and are thus an essential ingredient for the recent $$\alpha _s$$ αs determination by the ALPHA collaboration (Phys Rev Lett 119(10):102001. arXiv:1706.03821, 2017). In this paper we shortly review the strategy and present our results for both $${N_{\mathrm{f}}}=2$$ Nf=2 and $${N_{\mathrm{f}}}=3$$ Nf=3 lattice QCD, where we match the $$\beta $$ β -values of the CLS gauge configurations. In addition to the axial current renormalization, we also present precise results for the renormalized local vector current. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6044 1434-6052 |
| Relation: | http://link.springer.com/article/10.1140/epjc/s10052-018-6514-5; https://doaj.org/toc/1434-6044; https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-018-6514-5 |
| URL الوصول: | https://doaj.org/article/737e88d9268b404ea01afd4ef1f3431d |
| رقم الأكسشن: | edsdoj.737e88d9268b404ea01afd4ef1f3431d |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 14346044 14346052 |
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| DOI: | 10.1140/epjc/s10052-018-6514-5 |