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Revisiting the proton mass decomposition

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arxiv 2006.11171 v2 pith:NKE2KKGY submitted 2020-06-19 hep-ph hep-latnucl-th

classification hep-phhep-latnucl-th
keywords decompositionsmassenergy-momentumprotonrulestensortermsanomaly
verification ladder T0 review T1 audit T2 compute T3 formal
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Different decompositions (sum rules) for the proton mass have been proposed in the literature. All of them are related to the energy-momentum tensor in quantum chromodynamics. We review and revisit these decompositions by paying special attention to recent developments with regard to the renormalization of the energy-momentum tensor. The connection between the sum rules is discussed as well. We present numerical results for the various terms of the mass decompositions up to 3 loops in the strong coupling, and consider their scheme dependence. We also elaborate on the role played by the trace anomaly and the sigma terms.

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Cited by 5 Pith papers

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