Enlarging Regions of the MSSM Parameter Space for Large tan$\beta$ via SUSY Decays of the Heavy Higgs Bosons

Abstract : In the Minimal Supersymmetric Standard Model (MSSM) searches for the heaviest CP-even and CP-odd Higgs $H$, $A$ to tau-lepton pairs severely constrain the parameter region for large values of $\tan\beta$ and light Higgs bosons $H$, $A$. We demonstrate how the experimental constraint can be avoided by new decays to light third-generation sfermions, whose left-right couplings to $H$ can be maximised in regions of large trilinear couplings $A_{b}$, $A_{\tau}$ for sbottoms and staus, or large supersymmetric (SUSY) Higgs mass $\mu$ for stops. Due to the $\tan\beta$-enhancement in the production cross-sections via gluon-fusion and in association with bottom-quark pairs for $H$ and $A$, we find that down-type sfermions, in particular, sbottoms perform a better job in allowing more parameter space than up-type sfermions such as stops, which require much larger values of $\mu$ to compensate for $\tan\beta$. Vacuum stability as well as flavour observables constraints and direct searches for SUSY particles are imposed. We also associate the lightest CP-even Higgs with the observed 125 GeV SM-like Higgs and impose the experimental constraints from the LHC.
Type de document :
Pré-publication, Document de travail
t17/120 12 pages, 6 figures. 2017
Liste complète des métadonnées

Littérature citée [35 références]  Voir  Masquer  Télécharger

https://hal-cea.archives-ouvertes.fr/cea-01565662
Contributeur : Emmanuelle De Laborderie <>
Soumis le : jeudi 20 juillet 2017 - 10:04:43
Dernière modification le : jeudi 15 mars 2018 - 15:06:06

Fichier

1706.04994.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : cea-01565662, version 1
  • ARXIV : 1706.04994

Citation

Anibal D. Medina, Michael A. Schmidt. Enlarging Regions of the MSSM Parameter Space for Large tan$\beta$ via SUSY Decays of the Heavy Higgs Bosons. t17/120 12 pages, 6 figures. 2017. 〈cea-01565662〉

Partager

Métriques

Consultations de la notice

59

Téléchargements de fichiers

18