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URN: urn:nbn:de:swb:90-495874
DOI: 10.1140/epjc/s10052-015-3442-5

Higgs decays into charginos and neutralinos in the complex MSSM: a full one-loop analysis

Heinemeyer, S.; Schappacher, C.

For the search for additional Higgs bosons in the minimal supersymmetric standard model (MSSM) as well as for future precision analyses in the Higgs sector a precise knowledge of their decay properties is mandatory. We evaluate all two-body decay modes of the Higgs bosons into charginos and neutralinos in theMSSMwith complex parameters (cMSSM). The evaluation is based on a full one-loop calculation of all decay channels, also including hard QED radiation. We restricted ourselves to a version of our renormalization scheme which is valid for |M-1| < |M-2|, |mu| and M-2 not equal mu to simplify the analysis, even though we are able to switch to other parameter regions. The dependence of the Higgs boson predictions on the relevant cMSSM parameters is analyzed numerically. We find sizable contributions to many partial decay widths. They are roughly of 10 % of the tree-level results, but they can go up to 20 % or higher. The full one-loop contributions are important for the correct interpretation of heavy Higgs boson search results at the LHC and, if kinematically allowed, at a future linear e(+)e(-) collider. There are plans to implem ... mehr

Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1434-6044
KITopen ID: 1000049587
Erschienen in European Physical Journal C
Band 75
Heft 5
Seiten 1-26
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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