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Automatised matching between two scalar sectors at the one-loop level

Gabelmann, M.; Mühlleitner, M. M.; Staub, F.

Abstract:
Nowadays, one needs to consider seriously the possibility that a large separation between the scale of new physics and the electroweak scale exists. Nevertheless, there are still observables in this scenario, in particular the Higgs mass, which are sensitive to the properties of the UV theory. In order to obtain reliable predictions for a model which involves very heavy degrees of freedom, the precise matching to an effective theory is necessary. While this has been so far only studied for a few selected examples, we present an extension of the Mathematica package SARAH to perform automatically the matching between two scalar sectors at the full one-loop level for general models. We show that we can reproduce all important results for commonly studied models like split- or high-scale supersymmetry. One can now easily go beyond that and study new ideas involving very heavy states, where the effective model can either be just the standard model or an extension of it. Also scenarios with several matching scales can be easily considered. We provide model files for the MSSM with seven different mass hierarchies as well as two high-scale versions of the NMSSM. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000091918
Veröffentlicht am 07.03.2019
Originalveröffentlichung
DOI: 10.1140/epjc/s10052-019-6570-5
Scopus
Zitationen: 3
Web of Science
Zitationen: 2
Coverbild
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1434-6044, 1434-6052
urn:nbn:de:swb:90-919185
KITopen-ID: 1000091918
HGF-Programm 51.01.01 (POF III, LK 01)
Erschienen in The European physical journal / C
Band 79
Heft 2
Seiten Article: 163
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 22.02.2019
Nachgewiesen in Web of Science
Scopus
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