Quark mass determinations with the RI-SMOM scheme and HISQ action

Autor:	Lytle, A. T., Davies, C. T. H., Hatton, D., Lepage, G. P., Sturm, C.
Rok vydání:	2019
Předmět:	High Energy Physics - Lattice
Druh dokumentu:	Working Paper
Popis:	Lattice QCD provides several avenues for the high precision determination of quark masses. Using the RI-SMOM scheme applied to lattice calculations with the HISQ action, we obtain mass renormalisation factors that we use to provide strange and charm quark masses with 1% precision. The calculation involves the study of various sources of systematic uncertainty, including an analysis of possible nonperturbative (condensate) contributions. These results allow a comparison of different mass determination methods of comparable precision. In particular we (HPQCD) find good agreement between RI-SMOM and current-current correlator determinations based on the same lattice QCD bare masses, providing a strong test of our understanding of systematic uncertainties. Comment: Proceedings from Lattice 2018
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1901.06896 Zobrazit plný text záznamu View this record from Arxiv