Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"MSSM."”.
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ANALYSIS OF THE BOS ? ?+?- DECAY IN THE MSSM
… of the Minimal Supersymmetric Standard Model (MSSM). Complete analytical expressions for the decay amplitude at the one-loop order have been obtained with the aid of computational tools such as FeynArts, FeynCalc and Looptools. Working in the phenomenological MSSM with reduced parameter space, …
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Supersymmetry and the Spectral Action : on a geometrical interpretation of the MSSM
Contains fulltext : 128997.pdf (Publisher’s version ) (Open Access)
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Higgs production via weak boson fusion in the Standard Model and the MSSM
… (s)fermion sector of the Standard Model and the MSSM. Complete one loop results for weak boson fusion at the LHC in the Standard Model are presented. These include the effects of photon radiation and the full virtual electroweak corrections, as well as the QCD corrections (the latter are well …
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Search For Trilepton Resonances From R-Parity Violating Chargino Decays In The B−l Mssm
This dissertation presents a search for the electroweak pair-production of charginos and the associated production of charginos and neutralinos in the B−L Minimal Supersymmetric Standard Model with spontaneous R-parity violation. The chargino and neutralino each decay via R-parity violating …
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Higher order and CP-violating effects in the neutralino and Higgs boson sectors of the MSSM
… h_a and h_a->chi^0_i chi^0_j in the MSSM with CP-violating parameters. An on-shell renormalisation scheme is developed for the chargino–neutralino sector that consistently takes into account imaginary parts arising from complex parameters and absorptive parts of loop integrals. The …
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Studies of b-associated production and muonic decays of neutral Higgs bosons at the ATLAS experiment within the Minimal Supersymmetric Standard Model
… of the Minimal Supersymmetric Standard Model (MSSM) decaying into muons at the Atlas experiment at the CERN Large Hadron Collider. Signal and background processes are simulated using novel Monte Carlo generators that incorporate parts of higher order corrections and are expected to give a more …
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Dark matter, inflation and baryogenesis in supersymmetric extensions of the standard model
… points within the minimal supersymmetric SM (MSSM) with non–universal Higgs masses to illustrate how the allowed regions for the DM relic abundance and the particle physics constraints could possibly pin down the masses of supersymmetric inflaton candidates, mφ, and the vacuum expectation …
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ATLAS Level-1 Jet Trigger Rates and study of the ATLAS discovery potential of the neutral MSSM Higgs bosons in b-jet decay channels
… potential of the ATLAS experiment of the neutral MSSM Higgs bosons in the decay channels with multi b-jet final state topologies, namely H -> h,h -> bb,bb and bb,A/H -> bb,bb, is performed. The signal acceptance of the ATLAS LVL1 jet trigger, based on the determined trigger thresholds, is …
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Aspects Of Phenomenology And Cosmology In Heterotic M-Theory
… heterotic M-theory. We first re-examine the B-L MSSM, a realistic supersymmetric extension of the Standard Model, in a more generic region of moduli space. We modify our previous analysis by demanding that the mass scales of the two Wilson lines be simultaneous, and we show that the resulting …
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CP violation in production and decay of supersymmetric particles
… untersuchen wir CP verletzende Effekte von MSSM-Phasen in Produktion und Zwei-Teilchen-Zerfaellen von Neutralinos, Charginos und Sfermionen. Fuer verschiedene supersymmetrische Prozesse definieren und berechnen wir CP-ungerade Asymmetrien, welche auf Spatprodukten basieren. Wir zeigen …
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Spontaneous CP-Violation in Two Higgs Doublet Supersymmetric Models
… CP in the minimal supersymmetric models - the MSSM and NMSSM. The latter is shown to be experimentally viable. The phenomenological implications of the model such as CP-violating effects in the kaon systems and a nonzero neutron electric dipole moment are studied.
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E6 inspired supersymmetric models
… of the Minimal Supersymmetric Standard Model (MSSM). Also, unlike conventional Grand Unified Theories, the E6 inspired models do not contain any doublet-triplet splitting and the Minimal E6 Supersymmetric Model (ME6SSM) only contains complete E6 multiplets at low energies. A particularly …
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Supersymmetry Breaking: Models of Gauge Mediation with Gauge Messengers
… 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 work we will try to understand the most general way in which …
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Duality and Models of Supersymmetry Breaking
… explicitly or spontaneously. We find that the MSSM phenomenology can be greatly affected how this breaking occurs in the Hidden Sector. Explicit R-symmetry breaking models lead to fairly standard gauge mediation patterns, but we argue that in the context of ISS-type models this only makes sense …
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CP-Violation and Baryogenesis on Electroweak Scales
… Using our approach in the concrete case of MSSM we find that electroweak baryogenesis is insufficient to explain the observed value of baryon asymmetry generically.
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Brane worlds, brane worlds : it's party time : excellent
… values for the Au and B parameters of the MSSM. Branes also allow for the surprising possibility that we may be living in a world with infinite extra dimensions with minor observational consequences. In this dissertation we will show that the RS2 and LR models, which have a single infinite …
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Toward more scalable structured models
… propose a new loss, max-sliced score matching (MSSM), for learning structured models at scale. We assess our model on an estimation of densities and scores for implicit distributions in Variational and Wasserstein auto-encoders.
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Aspects of electroweak symmetry breaking in physics beyond the standard model
… symmetry it also solves the μ-problem of the MSSM. We investigate the Renormalisation Group Evolution of the model and test for radiative electroweak symmetry breaking in two versions of the model with different high scale constraints. First we briefly look at scenarios with non-universal …
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Search for supersymmetric partners of the top quark with the CMS detector and novel top quark tagging algorithms.
The standard model of particle physics has been highly successful in explaining observed interactions of subatomic particles. The model was largely vindicated with the announced observation of the Higgs boson by the ATLAS and CMS experiments at the LHC. The astronomical observation of dark matter, …
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On Vacuum Structures and Quantum Corrections in String Theory
… Afterwards, Ch. 8 presents a construction of the MSSM in global Type IIB orientifold compactifications. We argue that the Standard Model can be embedded into compact CY geometries as a quiver gauge theory through orientifolded D3-branes at del Pezzo singularities dPn with n ≥ 5 in a framework …
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