The minimal supersymmetric standard model mssm michael du rr march 30, 2010 1 particle content names spin 0 spin 12 su3 c. Still, there are several reasons to believe that new physics should. It was proposed to solve, amongst other things, the hierarchy problem. We explore a supersymmetric extension of the standard model sm from ftheory, under certain minimal assumptions on higgs sector. The minimal supersymmetric standard model mssm michael du rr march 30, 2010. The status of the minimal supersymmetric standard model and. On the other hand, no direct evidence of new physics beyond the standard model has been found, yet. Only one fermionic generator n 1 for the supersymmetry. Renormalization group invariants in the minimal supersymmetric. The renormalization of the minimal supersymmetric standard model mssm is presented. Soft supersymmetry breaking and the supersymmetric standard model.
The level of discussion is aimed at readers who are familiar with the standard model and quantum. The first realistic supersymmetric version of the standard model was proposed in 1977 by pierre fayet and is known as the minimal supersymmetric standard model or mssm for short. We also introduce the supersymmetric standard model as a possible theory for new physics at the tev scale, and discuss its main phenomenological features. Supersymmetry pairs bosons with fermions, so every standard model particle has a superpartner yet undiscovered. The status of the minimal supersymmetric standard model. Here there are no technical di culties hiding the essential structures. Quest for unification observational motivation dark matter candidate neutrino mass.
Also required is a second higgs field with opposite hypercharge to the first as the superpotential cannot contain both a field and its complex conjugate. Mssm is the minimal supersymmetrical model as it considers only the minimum number of new particle states and new interactions consistent with phenomenology. The nextto minimal supersymmetric extension of the standard model nmssm is one of the most favored supersymmetric models. A minimal supersymmetric cosmological model introduction standard model of cosmology moduli and gravitinos a minimal supersymmetric cosmological model.
Minimal supersymmetric standard model 21 conclusions 1. This would correct the higgs propagator at oneloop as 2m h. The minimal supersymmetric standard model mssm is an extension to the standard model that realizes supersymmetry. First, it is supersymmetric invariant up to total spacetime derivative since it is the. Although this solution is similar to the one provided by the nextto minimal supersymmetric standard model nmssm 152, the umssm is free of the cosmological domain wall problem because the i. Simple enough for a beginner, but challenging enough for an advanced student, supersymmetry demystified is your key to. The minimal supersymmetric standard model mssm csaba cs aki 1 center for theoretical physics laboratory for nuclear science and department of physics massachusetts institute of technology cambridge, ma 029, usa abstract the structure of the mssm is.
This chapter examines the minimal supersymmetric standard model mssm, which is the simplest extension of the standard model sm incorporating susy. An extension of the minimal supersymmetric standard model to include nonrenormalizable terms andor dirac neutrino masses might support either aterm inflation or modular inflation. Symmetry breaking in a u1 extended nonminimal supersymmetric standard model. We therefore study a general model with nonuniversal. The standard model, supersymmetry and zoofinder at cdf. The minimal supersymmetric standard model modern physics.
We recall how the idea of softly broken supersymmetry led to the construction of the supersymmetric standard model in 1981. Search for minimal supersymmetric standard model higgs. I provide a pedagogical introduction to supersymmetry. The notation demonstrates how the mssm is an extension of the standard model with the introduction of the new supersymmetry. Electroweak symmetry breaking in supersymmetric gaugehiggs. Third, the existence of dark matter, which makes up approximately one quarter of the energy density of the universe, cannot be explained within the standard model of. E 8 heterotic string, naturally yields a realistic grand unified theory gut of gauge group along e n series, including sm itself. The nexttominimal supersymmetric extension of the standard model nmssm is one of the most favored supersymmetric models. The minimal supersymmetric standard model mssm provides an attractive scheme for physics beyond the sm. In the supersymmetric extension of the standard model this would couple to the higgs as sjhj2jsj2. Introduction to supersymmetry university of oxford. Introduction to supersymmetry joseph conlon hilary term 2010. The second second aim of these notes is to use our understanding of nonperturbative aspects of particular supersymmetric models as a window on strongly coupled quantum.
A detailed presentation of the minimal supersymmetric standard model mssm and some of its phenomenological implications. Electroweak symmetry breaking in supersymmetric gauge. Search for minimal supersymmetric standard model higgs bosons. The level of discussion is aimed at readers who are familiar with the standard model and quantum field theory, but who have had little or no prior exposure to supersymmetry. Applications extension of possible symmetry groups. Naturalness priors and fits to the constrained minimal. Vempati1 1centre for high energy physics, indian institute of science, bangalore 560 012, india. Minimal supersymmetric standard model now let us turn to the model realizing the idea of supersymmetry. Martin department of physics, northern illinois university, dekalb il 60115 i provide a pedagogical introduction to supersymmetry. Correspondingly, therefore, quite accurate calculations of the physical observables are required. Muoniumantimuonium oscillations in an extended minimal. A minimal supersymmetric cosmological model ewan stewart kaist 22 november 2017 ctpu s kim, wi park, eds arxiv.
World heritage encyclopedia, the aggregation of the largest online encyclopedias. These lecture notes are based on a first course on the minimal supersymmetric standard model. We have calculated cross sections and decay branching ratios at the oneloop level using the gracesusyloop system 59. The three largest contributions come from the higgs selfloop, the w loop and the top quark loop.
I analyze two limiting cases of the model, characterized by the size of the supersymmetric mass for the singlet super. Minimal supersymmetric standard model springerlink. If string theory is telling us something about nature, nature is supersym. Standard model, where supersymmetric masses lie below a few tev, provides simple example of successful gauge. Soft supersymmetry breaking and the supersymmetric. The minimal supersymmetric extension of the standard model, where supersymmetric masses lie below a few tev, provides simple example of successful gauge coupling uni. Allanach damtp, cms, university of cambridge, cambridge, cb3 0fy, united kingdom. Theoretical, experimental, and cosmological constraints are studied. Introduction one of the testing grounds of grand uni. The minimal supersymmetric standard model mssm is introduced in this chapter. Soft supersymmetry breaking and the supersymmetric standard model savas dimopoulosa aphysics department, stanford university, stanford, ca 943054060, usa. The mssm removes dangerous contributions to the higgs mass provided that the superpartners of the known particles are not too far above the weak scale. Chiral supermultiplets in the minimal supersymmetric standard model.
Next the muoniumantimuonium oscillation time scale in a supersymmetric susy extension of the standard model is calculated. Topics covered include field content of the mssm, electroweak symmetry breaking, the. It is minimal, in a sense that, the gauge group is su3c. Pdf the nexttominimal supersymmetric standard model. Besides, such simple systems are interesting in their own right, since the dynamics of supersymmetric quantum eld theories in nite.
What is the minimal supersymmetric standard model from f. The minimal supersymmetric standard model mssm with universal soft breaking terms has a negligible effect on the rare cu. After an introduction to the model, the higgs sector and the neutralino sector are discussed in detail. Supersymmetry is a symmetry which relates particles of di erent spins. Symmetry breaking in a u1 extended nonminimal supersymmetric. These are quantum mechanical systems possessing supersymmetry 1. In the course of these lectures, we will introduce the basic features of the supersymmetric standard model, the particle content, the structure of the lagrangian, feynman rules, supersymmetric. We first motivate the particle content of the theory by examining the quantum numbers of the known standard model particles and by the. Renormalization group study of the minimal supersymmetric. Introduction although weakscale supersymmetry susy 1 arguably.
Minimal supersymmetric standard model yasaman farzan ipm, tehran. Minimales supersymmetrisches standardmodell wikipedia. In the most general framework with minimal eld content and rparity conservation. Oneloop effects of minimal supersymmetric standard model. The soft breaking lagrangian contains explicit mass terms for superpart. These lectures1 are devised as an introduction to the minimal supersymmetric standard model. The particle spectrum is doubled, yet all the interactions of the new susy particles with the standard model sm sector is fixed by.
References martin, a supersymmetric primer, hepph9709356 last update peskins lecture notes. Its supersymmetric extension, the minimal supersymmetric standard model, is a very popular candidate for the next re. Phenomenology of the minimal supersymmetric standard model. Motivation and introduction to supersymmetry motivation. Minimal supersymmetric standard model project gutenberg. Renormalization of the minimal supersymmetric standard model.
Standard model nmssm, with an explicit term and a supersymmetric mass for the singlet super. The simplest in this species is the minimal supersymmetric standard model mssm 2, 3. The hierarchy problem supermultiplets particle content of the minimal supersymmetric standard model mssm need for soft breaking of supersymmetry the wesszumino model 3. As an explicit model, the minimal supersymmetric standard model mssm is studied in this paper. Unification of gauge coupling constants in the minimal. Electron anomalous magnetic moment experiments majorana fermions minimal supersymmetric standard model muoniumanitmuonium time evolution muoniumantimuonium oscillation neutrino masses and mixings seesaw mechanism supersymmetry studies atmospheric and solar neutrinos. Gauge supermultiplets in the minimal supersymmetric standard model. We describe symmetry identities that constitute a framework in which the mssm is completely characterized and renormalizability can be proven. It has a virtue of allowing non trivial interactions between. This doctoral thesis has been accepted by purdue university, west lafayette, usa. The lower bound on the ratio of the two higgs field vevs is also discussed by using experimental results. Pdf these lecture notes are from a first course on the minimal supersymmetric standard model. The status of the minimal supersymmetric standard model and beyond howard e. Pdf inflation and the minimal supersymmetric standard model.
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