Complete two-loop effective potential approximation to the lightest Higgs scalar boson mass in supersymmetry

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volumn 67, Issue 9, 2003, Pages

  Martin, Stephen P ^a,b  

^a NORTHERN ILLINOIS UNIVERSITY   (United States)

^b FERMI NATIONAL ACCELERATOR LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACCURACY; ANALYTIC METHOD; ARTICLE; ATOMIC PARTICLE; CALCULATION; ENERGY; MASS; MOLECULAR DYNAMICS; QUANTITATIVE ANALYSIS;

EID: 0038575091     PISSN: 15507998     EISSN: 15502368     Source Type: Journal    
DOI: 10.1103/PhysRevD.67.095012     Document Type: Article

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28. In practice, (Formula presented) and (Formula presented) will be gotten from global fits to experimental data, so the minimization conditions can be used to fix two other parameters.
29. The tree-level squared masses (Formula presented) (Formula presented) (Formula presented) appear in propagators in perturbation theory and are defined by the second derivatives of the tree-level potential. They are highly Q dependent, and are not necessarily numerically close to, and should not be confused with, the physical masses. For lower Q, they are negative; this does not imply any instability of the vacuum.
30. Also visible in the graph are two benign kinks near (Formula presented) and 619 GeV, due to thresholds (Formula presented) and (Formula presented) respectively, in the one-loop functions.
31. Note that the neglected contributions in that case include, for example, significant terms proportional to (Formula presented) and (Formula presented) with large masses involved in the loop functions.