Decoupling and the radiatively-corrected MSSM higgs sector

✍ Scribed by Howard E. Haber

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 388 KB
• Volume: 116
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)80186-x

✦ Synopsis

In the decoupling limit of a non-minimal Higgs sector, the lightest CP-even Higgs boson (h) is indistinguishable from the Standard Model (SM) Higgs boson. In the two-Higgs-doublet sector of the MSSM, the approach to the decoupling limit (for mA >> mz) persists, even in the presence of potentially large (tan fl-enhanced) radiative corrections to the hbt) coupling. Radiative corrections can also generate an accidental cancellation between treelevel and one-loop terms, resulting in a SM-like Higgs boson for moderate mA outside the decoupling regime.