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Title: $$Z$$-Boson Pole Mass at Two-Loop Order in the Pure $$\overline{MS}$$ Scheme

Journal Article · · Phys.Rev.

I obtain the complex pole squared mass of the Z boson at full two-loop order in the Standard Model in the pure MS¯ renormalization scheme. The input parameters are the running gauge couplings, the top-quark Yukawa coupling, the Higgs self-coupling, and the vacuum expectation value that minimizes the Landau gauge effective potential. The effects of nonzero Goldstone boson mass are resummed. Within a reasonable range of renormalization scale choices, the scale dependence of the computed pole mass is found to be comparable to the current experimental uncertainty, but the true theoretical error is likely somewhat larger.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1436728
Report Number(s):
arXiv:1505.04833; FERMILAB-PUB-15-694-T; 1371725
Journal Information:
Phys.Rev., Vol. D92, Issue 1
Country of Publication:
United States
Language:
English

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