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NMSSM From Alternative Deflection In Generalized Deflected Anomaly Mediated SUSY Breaking

Posted on:2019-10-19Degree:MasterType:Thesis
Country:ChinaCandidate:X K DuFull Text:PDF
GTID:2370330545453515Subject:Theoretical Physics
Abstract/Summary:PDF Full Text Request
The standard model is a theoretical model that combines electroweak theory with quantum chromodynamics.It is a theoretical framework that can describe three kinds of forces(electromagnetic,weak,and strong interaction forces,except gravitation)in nature.Many accurate measurements have been performed over the past few decades,and it has almost been demonstrated that the standard model can well describe electroweak interactions and strong interactions.The last undiscovered particle of the model——Higgs was announced identified on the Large Hadron Collider(LHC)at the European Nuclear Center in July 2012.Up to now,the physical standard model is very perfect.Although the standard model is perfect,there are still some problems without a satisfactory answer in the standard model.Such as: in the standard model,the coupling of the electroweak and strong interaction can not be unified;standard model gives 125 GeV Higgs requirng extremely unnatural fine-tuning;the standard model cannot provide candidates for dark matter;there are neutrino mass problems and muon anomalous magnetic moments,etc.In order to solve these problems encountered on the basis of the standard model,physicists have proposed so many models by expande the SM,the most popular of which is the supersymmetric expansion of the standard model.And the simplest supersymmetric model is the minimal supersymmetry standard model(MSSM)obtained by supersymmetric expansion based on the same symmetry groups with the standard model.And we get the next-to-minimal supersymmetric extension of the standard model(NMSSM)by adding an extra singlet in MSSM to solve the so-called “?-problems” encountered in MSSM,etc.These models provide good solutions to the problems encountered by the standard model.The main task of this paper is to study the next-to the minimal supersymmetry standard model derived from a special deflection anomaly mediation supersymmetry broken mechanism.A new holomorphic term is added to the Kahler potential in the next-to minimal supersymmetry standard model,and a new messenger-mattter interaction method is introduced in the deviant anomalous broken mechanism(dAMSB).In this scheme,it is easier to give the electric weak symmetry breaking,obtain the soft supersymmetric broken spectrum,give the 125 GeV Higgs boson,and give the extra contribution to the muon anomalous magnetic moment,and provide the dark matter candidates satisified direct and indirect detection.
Keywords/Search Tags:SM, NMSSM, AMSB, Dark Matter, muon anomalous magnetic moment
PDF Full Text Request
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