Scale symmetry breaking, quantum anomalous energy and proton mass decomposition

URN to cite this document:: urn:nbn:de:bvb:355-epub-517396
DOI to cite this document:: 10.5283/epub.51739

Ji, Xiangdong ; Liu, Yizhuang ; Schäfer, Andreas

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Date of publication of this fulltext: 20 Feb 2022 14:21

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Abstract

We study the anomalous scale symmetry breaking effects on the proton mass in QCD due to quantum fluctuations at ultraviolet scales. We confirm that a novel contribution naturally arises as a part of the proton mass, which we call the quantum anomalous energy (QAE). We discuss the QAE origins in both lattice and dimensional regularizations and demonstrate its role as a scheme-and-scale independent ...