Top-quark pole mass in the tadpole-freeMS¯scheme

2016/04/15 by Stephen P. Martin · 27 citations
Physics and Astronomy · #Algorithm #Artificial intelligence #Black Holes and Theoretical Physics #Computer science #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Speech recognition #Stress (linguistics) #Tadpole (physics) #hep-ph

paper · pdf · doi:10.1103/physrevd.93.094017

published in Physical review. D/Physical review. D. 93(9) (American Physical Society) · 24 pages. v2: references added, no other changes

arxiv created 2016/04/15 · openalex publication_date 2016/05/18 · arxiv updated 2016/05/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

The complex pole mass of the top quark is presented at full two-loop order in the Standard Model, augmenting the known four-loop QCD contributions. The input parameters are the MS Yukawa and gauge couplings, the Higgs self-coupling, and the Higgs vacuum expectation value (VEV). Here, the VEV is defined as the minimum of the full effective potential in Landau gauge, so that tadpoles vanish. This is an alternative to earlier results that instead minimize the tree-level potential, resulting in a VEV that is gauge-fixing independent but accompanied by negative powers of the Higgs self-coupling in perturbative expansions. The effects of nonzero Goldstone boson mass are eliminated by resummation. I also study the renormalization scale dependence of the calculated pole mass.

Citations

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