| Article | |
| Report number | hep-ph/0003022 ; LC-TH-2001-064 ; CERN-TH-2000-056 ; DESY-00-028 ; KA-TP-9-1999 ; CERN-TH-2000-056 ; DESY-2000-028 ; KA-TP-99-9 ; DESY-00-028 |
| Title | Decay widths of the neutral CP-even MSSM Higgs bosons in the Feynman-diagrammatic approach |
| Related title | MINIMAL SUPERSYMMETRIC STANDARD MODEL CHARGE PARITY |
| Author(s) | Heinemeyer, Sven (DESY) ; Hollik, Wolfgang (Karlsruhe U.) ; Weiglein, Georg (CERN) |
| Affiliation | (DESY) ; (Univ. Karlsruhe) ; (CERN) |
| Publication | 2000 |
| Imprint | 3 Mar 2000 |
| Number of pages | 26 |
| In: | Eur. Phys. J. C 16 (2000) 139-153 |
| DOI | 10.1007/s100520050010 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | In the Minimal Supersymmetric Standard Model (MSSM) we incorporate the Higgs-boson propagator corrections, evaluated up to two-loop order, into the prediction of $\Gamma$(h -> ff) and BR(h -> ff) for f = b, c, $\tau$. The propagator corrections consist of the full one-loop contribution, including the effects of non-vanishing external momentum, and corrections of O(alpha alpha_s) at the two-loop level. The results are supplemented with the dominant one-loop QED corrections and final state QCD corrections from both gluons and gluinos. The effects of the two-loop propagator corrections and of the one-loop gluino contributions are investigated in detail. Our results are compared with the result obtained within the renormalization group approach. Agreement within 10% is found for most parts of the MSSM parameter space. |
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Journalen skapades 2000-03-06, och modifierades senast 2023-03-14
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