Universal Scale Factors: A Bridge Between Chiral Lagrangians and QCD Sum-Rules

Autor:	Fariborz, Amir H., Ho, J., Steele, T. G.
Rok vydání:	2020
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	Chiral Lagrangian mesonic fields can be connected to QCD quark operators via matrix operators containing scale factors. These scale factor matrices are shown to be constrained by chiral symmetry, resulting in a universal scale factor for each Chiral Lagrangian nonet. QCD sum-rules, combined with mixing angles from Chiral Lagrangian analyses, are used to determine the scale factors for the $a_0$ isotriplet and $K_0^*$ isodoublet scalar mesons. The resulting scale factors verify the universality property, providing a validation of the scale factor matrices connecting Chiral Lagrangian mesonic fields and quark operators. Comment: 5 pages. Proceedings article for QCD20: 23rd International Conference in Quantum Chromodynamics
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2012.06520 Zobrazit plný text záznamu View this record from Arxiv