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Showing 1 to 20 of 48 for “"SUSY"”.
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Towards a reconstruction of the SUSY seesaw model
… great detail how the unknown parameters of the SUSY seesaw model can be determined from measurements of observables at or below collider energies, namely rare flavor violating decays of leptons, slepton pair production processes at linear colliders and slepton mass differences. This is a …
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A Study of Equivalence of SUSY Theories using Adinkras and Super Virasoro Algebras
Supersymmetry (SUSY) theories describe a wide number of quantum field theories with supersymmetric particles interacting. By using two methods, Adinkras and Super Virasoro algebras (SVAs), more information is gained about SUSY theories: (a.) when two representation may be considered equivalent, …
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SUSY Seesaw model and phenomenological implications for leptonic processes at low energies and leptogenesis
In this work the supersymmetric seesaw model and its effects on low-energy leptonic observables and thermal leptogenesis have been systematically investigated. Precision measurements will increase the sensitivity on lepton-flavor violating decays, particularly on Br(l_j->l_i gamma) and also on …
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Identifying fake leptons in ATLAS while hunting SUSY in 8 TeV proton-proton collisions
… motivated reasons, super- symmetry (SUSY) has for some time been identified as an interesting candidate for a theory of fundamental particle physics beyond the Stan- dard Model. The ATLAS collaboration, of which I am a member, possess a detector emplaced in the Large Hadron Collider …
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The Development of the ATLAS SCT as a Luminometer and the Search for SUSY Decays with Compressed Mass Spectra
… is found to be effective at differentiating SUSY decays from the SM background, when used as an upper bound. No significant excess was observed above the Standard Model background and limits at 95% confidence level are set. Stop quarks are found to be excluded up to 500 GeV and mass …
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Supersymmetry at the dawn of the LHC era
… and observational consequences of supersymmetry (SUSY). I show how copious production of Higgs bosons in SUSY events at the LHC can be a striking signal of multiple SUSY-breaking. In the context of anomaly mediation in supergravity, I demonstrate how goldstino couplings can be used as a probe of …
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Super symmetric vertex algebras and supercurves
We define and study the structure of SUSY Lie conformal and vertex algebras. This leads to effective rules for computations with superfields. Given a strongly conformal SUSY vertex algebra V and a supercurve X, we construct a vector bundle [ ... ] on X, the fiber of which, is isomorphic to V. …
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Carbon partitioning in nitrogen-fixing root nodules
… der Gene für Saccharosesynthase (SuSy) und Zuckertransporter in Wurzeln und Knöllchen wurden verglichen. Leguminosen- und Aktinorhizasymbiosen unterscheiden sich in Bezug auf die Expression von Zuckertransportergenen: die Expression des Hexosetransportergens wurde in Knöllchen der …
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Functional analysis of the sucrose synthase gene family in Arabidopsis thaliana
Sucrose synthase (Susy) is a key enzyme of sucrose metabolism, catalysing the reversible conversion of sucrose and UDP to UDP-glucose and fructose. Therefore, its activity, localization and function have been studied in various plant species. It has been shown that Susy can play a role in supplying …
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Enhancing the sensitivity of the ATLAS experiment to electroweak supersymmetry
… Model' theories such as supersymmetry (SUSY). As yet, no discoveries have been made, but a range of simplified SUSY scenarios have been excluded. This thesis presents three approaches for enhancing the sensitivity of the ATLAS experiment to the electroweak production of supersymmetric …
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Obstacles to realizing Quintessence from String Theory
… volume problem". Furthermore, the masses of the SUSY partners of standard-model fields turn out too light as well, so we need a further source of SUSY breaking. Introducing an appropriate SUSY-breaking hidden sector on the standard-model brane then leads to a large positive F-term contribution to …
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Supersymmetry Breaking: Models of Gauge Mediation with Gauge Messengers
… extensions of the standard model. Supersymmetry (SUSY), in particular the Minimal Supersymmetric Standard Model (MSSM), is one such extension that is specially attractive by its simplicity and elegance. However, if this symmetry is to be realized in nature, it must be spontaneously broken. In this …
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Brane worlds, brane worlds : it's party time : excellent
… construction of higher dimensional theories of SUSY breaking, and of gravitational phenomena. In particular they provide strong motivation for considering anomaly mediation as a mechanism of SUSY breaking communication. Anomaly mediation provides a very predictive spectrum for the superpartner …
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Radiative symmetry breaking in the supersymmetric minimal B-L extended standard model
… between large Majorana Yukawa couplings and SUSY breaking masses. This realization shows that B-L symmetry breaking naturally occurs at the TeV scale, in addition to TeV scale SUSY breaking, the Z' boson and right-handed neutrino masses are also near the TeV scale, which we explicitly confirm …
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Parity-time and supersymmetry in optics
… parity-time symmetry (PT) and supersymmetry (SUSY), within the context of classical optics. The presence of PT symmetry can lead to entirely real spectra in non-Hermitian systems. In optics, PT-symmetric structures involving balanced regions of gain and loss exhibit intriguing properties which …
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Beyond Standard Model Physics under the ground and in the sky
… searches has lead to the development of Split SUSY models which are based only on gauge unification and dark matter as guiding principles. We study in detail the cosmic probes of Split SUSY using indirect dark matter detection constraints and hints of small tensor to scalar ratio. We also …
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Searches for supersymmetric particles in events with two opposite-sign same-flavor leptons, jets, and large missing transverse energy
… same-flavor opposite-sign dilepton channel. The SUSY analyses usually require large missing transverse energy MET for the presence of invisible LSPs. One of the most difficult background processes to estimate in these searches is due to artificial MET from hadronic object (jet) energy …
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CP-violation in cascade decays at the LHC
… at the LHC. We include both standard model and SUSY backgrounds in the study. Our conclusions state that given a favourable scenario, CP-violation may be observed in SUSY at the 3-sigma level over a wide range of CP-phases with 500 1/fb of data.
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Quantitative Real-Time PCR Analysis of Colchicine Pathway and Rhizome Developmental Genes
… The genes CYP-30999, CYP-5091, NAT-70209, SuSy-69933 and REV-15982 were expressed in leaf and root tissue, while CYP75A109, CYP75A110, NAT-30717, SuSy-2693 and REV-11056 were expressed in rhizome tissue. Genes with high expression in rhizome tissue are likely candidates for involvement in …
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Generalisations of the MHV lagrangian theory to D-dimensions and to super-space
… lagrangian are closed under a subgroup of the SUSY transformations. We find the N=1 super Yang-Mills lagrangian can be rewritten in terms of chiral and anti-chiral superfields. In both N=1 and N=4 theories we perform a fermionic integral transformation on superfields analogous to Fourier …
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