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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 551 for “"standard model"”.
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STATISTICAL LEARNING FOR STANDARD MODEL PHENOMENOLOGY
… both in terms of parametrization and model selection. We discuss different sources of PDF uncertainty. First, we elucidate the nontrivial aspects of averaging over the space of PDF determinations by explicitly calculating the data-driven correlation between different sets of PDFs. …
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Flavor physics beyond the standard model
… within a two-Higgs doublet extension of the Standard Model the quark and charged lepton mass hierarchy. We show that the experimental value of the lifetime difference in D⊃0⊃-anti-D⊃0⊃ mixing may be due to destructive interference of the Standard Model and New Physics contributions. We …
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Standard model physics from an algebra?
… constitutes a first attempt to derive aspects of standard model particle physics from little more than an algebra. Here, we argue that physical concepts such as particles, causality, and irreversible time may result from the algebra acting on itself. We then focus on a special case by considering …
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Beyond the minimal supersymmetric standard model
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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PHENOMENOLOGY OF THE STANDARD MODEL AND BEYOND
While the Standard Model (SM) of particle physics is the most precise theory everdiscovered, it is known to be incomplete. The SM cannot account for the observed Dark Matter (DM) in the universe or that the neutrinos have masses. Furthermore, theoretical puzzles such as the matter-antimatter …
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Looking Beyond the Standard Model from the Lattice
… patterns of three specific BSM (beyond the standard model) theories. The first model (in chapter 3) describes the spontaneous symmetry breaking pattern in a two dimensional, eight supercharge supersymmetric Yang-Mills theory. We discuss the mechanism responsible for the said symmetry …
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Testing the Standard Model With Top Quark Production
Using the next-to-leading-order results for the W-gluon fusion cross section, we analyze the possibilities for studying single-top-quark production at the Tevatron and LHC. We find that there may be evidence for single-top-quark production in Run I data. Run II at the Tevatron should allow the …
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Standard model foregrounds in nuclear and particle astrophysics
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-05-21T15:27:15Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Chakraborty_Nachiketa.pdf: 1353171 bytes, checksum: 2370abaa785a3310bcbe9514150a39c2 (MD5)
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Testing the Standard Model with Top-Quark Production
… top quark may be sensitive to physics beyond the standard model. A promising candidate for this new physics is supersymmetry. Hence, we calculate the supersymmetric QCD correction to top-quark production at the Fermilab Tevatron, allowing for arbitrary left-right mixing of the squarks. We find …
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Global Standard Model analyses for new physics searches
… Hadron Collider (LHC) in 2012 completed the Standard Model (SM), one of the most successful physical theories ever formulated. Since then, the SM has withstood extensive experimental scrutiny, with theoretical predictions showing remarkable agreement with measurements. Nevertheless, there are …
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Parton Distributions in Beyond the Standard Model Theories
… experimental data under the assumption that the Standard Model (SM) of particle physics is complete; however, this can bias studies of beyond the Standard Model (BSM) physics if these SM-like PDFs are used in these analyses. It is important to quantify the extent to which this occurs, in order to …
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Anomalies and the Standard Model of Particle Physics
… quantum anomalies and some other aspects of the Standard Model of Particle physics. In any quantum gauge field theory, anomalies place a very restrictive condition on the matter content and the dynamics. The former is due to the cancellation of gauge anomalies while ’t Hooft anomaly matching …
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Strong dynamics in theories beyond the standard model
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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Forces and gauge groups beyond the standard model
… in 2012 completed the particle content of the Standard Model, but brought into sharp relief two outstanding problems: why is the Higgs so light, and what is the identity of 80% of the matter content of the universe? Neither appears to have an answer within the Standard Model. This thesis …
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Low Energy Search For Physics Beyond The Standard Model
… discussion of the theoretical aspects of the Standard Model we point out experimental observations that can not be answered within its framework. Methods for the inderect detection of the heavy (electroweak scale and above) and light New Physics particles are discussed. Study of the meson …
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Neutrinos as Windows Into Physics Beyond the Standard Model
… several possible routes for extending the Standard Model of Particle Physics, based on phenomenological considerations. We focus particularly on the role of neutrino data, proton decay bounds and known fermion masses and mixing angles in constraining a viable model. First, we discuss the …
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Effective Field Theories for Physics Beyond the Standard Model
… of data gathered by the LHC has tested the Standard Model to an unprecedented level, with searches for physics beyond the Standard Model placing strong constraints on new physics. As these constraints become more stringent, it is increasingly likely that physics beyond the Standard Model …
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Beyond the standard model of cosmology : a perturbative approach
… concerns higher order perturbations of the standard model of cosmology. The theme is addressed in two distinct research areas. The first area deals with linear perturbations of Bianchi type I model filled with dust whose flow is irrotational, and which is an analogue to second order …
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The standard model in 5D : theoretical consistency and experimental constraints
… Hence, we discuss different extensions of the standard model of particle physics with an extra dimension at the TeV-scale. We assume that some of the gauge and Higgs bosons propagate in one additional spatial dimension, while matter fields are confined to a four-dimensional subspace, the usual …
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