Renormalization Group Study of the Minimal Supersymmetric Extension of the Standard Model With Softly Broken Supersymmetry PDF Download
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Author: Diego Castano
Publisher:
ISBN: 9780530008080
Category : Science
Languages : en
Pages : 144
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Book Description
Abstract: This is the Ph. D. dissertation of the author and represents his research on the minimal supersymmetric extension of the standard model of particle physics. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Renormalization Group Study of the Minimal Supersymmetric Extension of the Standard Model With Softly Broken Supersymmetry" by Diego J. Castano, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author: Diego Castano
Publisher:
ISBN: 9780530008080
Category : Science
Languages : en
Pages : 144
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Book Description
Abstract: This is the Ph. D. dissertation of the author and represents his research on the minimal supersymmetric extension of the standard model of particle physics. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Renormalization Group Study of the Minimal Supersymmetric Extension of the Standard Model With Softly Broken Supersymmetry" by Diego J. Castano, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author: Diego J. Castaño
Publisher:
ISBN:
Category :
Languages : en
Pages : 262
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Book Description
Author: Sevdiye Mutlu
Publisher:
ISBN:
Category :
Languages : en
Pages : 154
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Book Description
This thesis work is devoted to a detailed study of the renormalization group invariants (RG invariants) in minimal supersymmetric standard model (MSSM). The RG invariants are those Lagrangian parameters or combinations of the parameters, which exhibit no dependence on the energy scale up to the loop order with which the renormalization group equations (RGEs) are constructed. In this work, following an introductory chapter on standard model of electroweak and strong interactions as well as supersymmetry and supersymmetric field theories, we discuss construction of renormalization group equations in supersymmetric models, in particular, the minimal supersymmetric standard model with holomorphic and non-holomorphic soft terms. We finally concentrate on construction and phenomenological implications of the RG invariants in the minimal supersymmetric standard model with and without non-holomorphic supersymmetry breaking terms.
Author: Nir Polonsky
Publisher: Springer Science & Business Media
ISBN: 3540446427
Category : Science
Languages : en
Pages : 161
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Book Description
The book is a fairly non-technical introduction to modern supersymmetry phenomenology, approaching the subject in new and unique ways. It is suitable both for theorists and experimentalists, and emphasizes an intuitive grasp of the subject. Theoretical and experimental motivations, and the status and prospects of low-energy supersymmetry are discussed. It is shown by explicit construction that the stabilization of any perturbative theory which contains fundamental scalar bosons naturally leads to the notion of supersymmetry. The minimal supersymmetric extension of the standard model is then pedagogically defined and its experimental status is summarized. Renormalization of the models, including unificaiton, is discussed and the linkage between high and low energies is demonstrated, providing a potential probe of Planck-scale physics, such as unified theories. Besides a host of other phenomena, Higgs physics is discussed and the Higgs mass is shown to provide a crucial test of nearly all supersymmetric theories.
Author: Andrew James Bordner
Publisher:
ISBN:
Category :
Languages : en
Pages : 230
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Book Description
Author: Giorgio Gamberini
Publisher: Edizioni della Normale
ISBN: 9788876422744
Category : Science
Languages : en
Pages : 0
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Book Description
A way to solve the naturalness problem of the Higgs mass arising from the standard model is to introduce a new symmetry: the supersymmetry. Supersymmetry predicts, along with every particle, its supersymmetric counterpart, which has the same internal quantum numbers, the same mass (if supersymmetry is not broken) and an intrinsic angular momentum differing by half a unity from the first one. Phenomenologically it is evident that if supersymmetry does exist, it is broken. Nowadays it seems that the more realistic and phenomenologically acceptable models of supersymmetry are the minimal N=1 supergravity models. The purpose of this thesis is to study the various experimental possibilities of testing the Minimal Supersymmetric Standard Model (MSSM). Altough the MSSM is only a particular model along a wide class of possible supersymmetric extensions of the standard model, it is considered here because of its simplicity which entails strong and definite phenomenological predictions. We will show that the MSSM can indeed be fully tested in the next high-energy experiments.
Author: Marianne Heilmann
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This thesis analyses scalar supersymmetric field theories within the framework of the functional renormalization group (FRG). Classical physics on microscopic scales is connected to the effective model on macroscopic scales via the scale-dependent effective average action by a reformulation of the path integral. Three supersymmetric theories are explored in detail: supersymmetric quantum mechanics, the three-dimensional Wess-Zumino model and supersymmetric spherical theories in three dimensions. The corresponding renormalization group flow is formulated in a manifestly supersymmetric way. By utilizing an expansion of the effective average action in derivative operators, an adequate and intrinsically non-perturbative truncation scheme is selected. In quantum mechanics, the supersymmetric derivative expansion is shown to converge by increasing the order of truncation. Besides, high-accuracy results for the ground and first excited state energies for quantum systems with conserved as well as spontaneously broken supersymmetry are achieved. Furthermore, the critical behaviour of the three-dimensional Wess-Zumino is investigated. Via spectral methods, a global Wilson-Fisher scaling solution and its corresponding universal exponents are determined. Besides, a superscaling relation of the leading exponents is verified for arbitrary dimensions greater than or equal to two. Lastly, three-dimensional spherical, supersymmetric theories are analysed. Their phase structure is determined in detail for infinite as well as finitely many superfields. The exact one-parameter scaling solution for infinitely many fields is shown to collapse to a single non-trivial Wilson-Fisher fixed-point for finitely many superfields. It is pointed out that the strongly-coupled domains of these theories are plagued by Landau poles and non-analyticities, indicating spontaneous supersymmetry breaking.
Author: Edited by: Kisak
Publisher: CreateSpace
ISBN: 9781516953738
Category :
Languages : en
Pages : 224
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Book Description
Spontaneously-broken supersymmetry could solve many mysterious problems in particle physics including the hierarchy problem. The simplest realization of spontaneously-broken supersymmetry, the so-called Minimal Supersymmetric Standard Model, is one of the best studied candidates for physics beyond the Standard Model. There is only indirect evidence and motivation for the existence of supersymmetry. In my opinion the term "Supersymmetry" is a misnomer . Symmetry has always been a prevailing premise and aid to understand the fundamental behavior of the forces of nature, the sciences and most all fields of rigorous study.
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 1224
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Book Description
Author: Jean-François Fortin
Publisher:
ISBN:
Category : Standard model (Nuclear physics)
Languages : en
Pages : 187
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Book Description
In this thesis we explore different aspects related to the central concepts of supersymmetry and physics beyond the Standard Model. We start by investigating fine-tuning in the minimal supersymmetric extension of the Standard Model, where the regions with the minimal amount of fine-tuning of electroweak symmetry breaking are found. Afterwards, we concentrate on a more formal aspect of supersymmetry, studying spontaneous symmetry breaking in supersymmetry using the superspace formalism. Thereafter we direct our attention to supersymmetry as physics beyond the Standard Model, looking more specifically at supersymmetry breaking in metastable states. First, we discuss possible undetected Higgs decays in the Pentagon model with renormalizable lepton number violating couplings which also explain neutrino masses. Second, we generalize metastable supersymmetry breaking in supersymmetric quantum chromodynamics to phenomenologically viable models of direct gauge mediation by adding single and multitrace deformations. Third, we introduce a new model of physics beyond the Standard Model, the Pyramid Scheme, and study its implications, focusing on dark matter and its astrophysical signatures in particular. Four, we examine tunneling constraints in models of Cosmological Supersymmetry Breaking, arguing that these models can have no supersymmetric vacuum states in the infinite Planck mass limit. Finally, we present a general study of the possible gamma ray signatures coming from dark matter annihilation or decay.
