Complete Two-loop Dominant Corrections to the Mass of the Lightest CP-even Higgs Boson in the Minimal Supersymmetric Standard Model
By J. Espinosa, Ren-jie Zhang. 2000
207 citations recorded by the source corpus.
Abstract Using an effective potential approach, we compute two-loop radiative corrections to the MSSM lightest CP -even Higgs boson mass M h 0 to O (α t 2 ) for arbitrary left-right top-squark mixing and tan β . We find that these corrections can increase M h 0 by as much as 5 GeV; assuming a SUSY scale of 1 TeV, the upper bound on the Higgs boson mass is M h 0 ≈129±5 GeV for the top quark pole mass 175±5 GeV. We also derive an analytical approximation formula for M h 0 which approximates our numerical results to a precision of ≲0.5 GeV for most of the parameter space and suitable to be further improved by including renormalization group resummation of leading and next-to-leading order logarithmic terms. Our final compact formula admits a clear physical interpretation: radiative corrections up to the two-loop level can be well approximated by a one-loop expression with parameters evaluated at the appropriate scales, plus a smaller finite two-loop threshold correction term.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/00df0cfee89e2cb25589688a4e0de89211cdd051
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In Artificial Intelligence
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In Nuclear and High Energy Physics
- Henning Bahl
- Wolfgang Hollik
- Abdelhak Djouadi
- Pietro Slavich
- Benjamin C. Allanach
- Werner Porod
- J. Kneur
- G. Villadoro
Citations in the corpus
- SusyHD: Higgs mass Determination in Supersymmetry (2015, methodology): “The term m 2 (α(2)t , EP) h is the contribution from the effective potential in the DR scheme, which was calculated by Espinosa and Zhang [15]:”
- Precise determination of the neutral Higgs boson masses in the MSSM (2004, background): “The twoloop Yukawa corrections of O(α(2)t ) [19, 22, 25] and O(αtαb +α(2)b) [26] have been also evaluated in the limit of zero external momentum.”
- Precise prediction for the light MSSM Higgs-boson mass combining effective field theory and fixed-order calculations (2016, methodology): “The conversion of MS does not involve any large logarithms [20, 31]; hence, MS is not converted.”