1.

Record Nr.

UNINA9910254609603321

Autore

Zeune Lisa

Titolo

Constraining Supersymmetric Models : Using Higgs Physics, Precision Observables and Direct Searches / / by Lisa Zeune

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016

ISBN

3-319-22228-7

Edizione

[1st ed. 2016.]

Descrizione fisica

1 online resource (216 p.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

539.725

Soggetti

Elementary particles (Physics)

Quantum field theory

String theory

Elementary Particles, Quantum Field Theory

Quantum Field Theories, String Theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references at the end of each chapters.

Nota di contenuto

Introduction -- The Standard Model and supersymmetric extensions of it -- Perturbative calculations -- Experimental status -- The W boson mass in the SM, the MSSM and the NMSSM -- The diphoton decay channel in the MSSM and the NMSSM -- Fitting the MSSM to the observed Higgs signal -- Constraining SUSY scenarios using simplified models -- Conclusions.

Sommario/riassunto

This thesis analyses how supersymmetric (SUSY) extensions of the Standard Model (SM) of particle physics can be constrained using information from Higgs physics, electroweak precision observables and direct searches for new particles. Direct searches for SUSY particles at the LHC have not resulted in any signal so far, and limits on the SUSY parameter space have been set. Measurements of the properties of the observed Higgs boson at 125 GeV as well as of the W boson mass can provide valuable indirect constraints, supplementing the ones from direct searches. Precise calculations are performed for Higgs decays and electroweak precision observables within the minimal supersymmetric extension of the Standard Model and the next to-minimal supersymmetric extension of the Standard Model.



Furthermore, a method is presented to reinterpret the LHC limits from direct SUSY searches in more realistic SUSY scenarios. The phenomenological consequences of those results are thoroughly analysed.