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Full-Text Articles in Physical Sciences and Mathematics
Symmetry And Reconstruction Of Particle Structure From Random Angle Diffraction Patterns, Sandi Wibowo
Symmetry And Reconstruction Of Particle Structure From Random Angle Diffraction Patterns, Sandi Wibowo
Theses and Dissertations
The problem of determining the structure of a biomolecule, when all the evidence from experiment consists of individual diffraction patterns from random particle orientations, is the central theoretical problem with an XFEL. One of the methods proposed is a calculation over all measured diffraction patterns of the average angular correlations between pairs of points on the diffraction patterns. It is possible to construct from these a matrix B characterized by angular momentum quantum number l, and whose elements are characterized by radii q and q’ of the resolution shells. If matrix B is considered as dot product of vectors, which …
Determination Of The Polarization Observables Cx, Cz, And Py For Final-State Interactions In The Reaction −!D ! K+−!N, Tongtong Cao
Determination Of The Polarization Observables Cx, Cz, And Py For Final-State Interactions In The Reaction −!D ! K+−!N, Tongtong Cao
Theses and Dissertations
The hyperon-nucleon (YN) interaction plays a key role in hypernuclei and strange nuclear matter and is an important part of the baryon-baryon interaction. While considerable progress has been made in the understanding of the nucleon-nucleon (NN) interaction, the YN interaction is less known. Some parameters of the YN potential can be obtained from the NN potential by using SU(3) symmetry. However, due to broken SU(3) there are parameters, which must be obtained from fits to experimental data. High-statistics data on exclusive photoproduction off the deuteron initiated with highly-polarized photons offer a unique opportunity to extract a large sample of polarization …
Sensitivity Of The Cuore Detector To Solar Axions, Dawei Li
Sensitivity Of The Cuore Detector To Solar Axions, Dawei Li
Theses and Dissertations
The strong CP problem in Quantum Chromodynamics (QCD), predicts the neutron electric dipole moment to be a factor of 1010 larger than the observed upper bound [15]. Roberto Peccei and Helen Quinn [58, 63] proposed an elegant solution to this problem by introducing a global U(1)PQ symmetry that is spontaneously broken at an energy scale fa. A consequence of this symmetry-breaking is that a new spin-zero neutral pseudoscalar particle, the axion, is generated which is a Nambu-Goldstone boson [70, 78]. The “invisible axion” models with fa >> fEW, typically KSVZ and DFSZ models, have been proposed and recognized to be far-reaching …