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Showing 1 to 19 of 19 for “"partial wave"”.
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Partial-Wave Analysis of Elastic-Scattering and Inelastic-Scattering of Dirac Particles
Made available in DSpace on 2014-12-10T20:13:39Z (GMT). No. of bitstreams: 1 7317327.pdf: 3893048 bytes, checksum: 5c2a16f339cc0875cb08ba8e4f9728f5 (MD5) Previous issue date: 1972
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Constraints on Pion-Pion Partial Wave Amplitudes Below Threshold, From Crossing Symmetry, Positivity and Analyticity
Made available in DSpace on 2015-05-12T22:38:46Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7212182.PDF: 3553094 bytes, checksum: c2a234ae2fb8e15ae8cbda3f75daac13 (MD5) Previous issue date: 1971
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Constraints on pi-pi partial wave amplitudes below threshold, from crossing symmetry, positivity and analyticity
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-03-20T18:42:54Z No. of bitstreams: 1 1971_griss.pdf: 4463098 bytes, checksum: e116157fb542c2257ff2212345037457 (MD5)
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Three pion production on complex nuclei at 23 GeV/c
… has been analyzed using the Illinois method of partial wave analysis. The partial wave structure of the data is remarkably similar to that of the data from hydrogen, excepting the distributions in momentum transfer, which exhibit the usual coherent and incoherent contributions of nuclear …
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An analysis of K⁺-nucleon scattering
A partial-wave analysis of K⁺-nucleon scattering has been performed. Energy-dependent and energy-independent solutions for the isoscalar and isovector amplitudes are generated by fitting data with a chi-squared minimization technique. The isoscalar amplitudes extend to a K⁺ incident lab kinetic …
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An analysis of pion-nucleon scattering
… energy of 1100 MeV was performed. The resulting partial-wave amplitudes were investigated in the complex energy plane, and the resonance states with their associated zeros and poles were determined. Particular emphasis was given on elucidating the nature of the P₁₁ partial wave. The phase-shift …
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An analysis of pion photoproduction
A partial-wave analysis of pion photoproduction data up to a photon lab energy of 1.8 GeV has been performed. Both energy-dependent and energy-independent solutions have been obtained. The energy-dependent parametrization incorporates the recently determined elastic pion nucleon scattering …
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Accurate Quantum Mechanical Decoupling Approximations for Molecular Scattering Theory
… to first-order using the generalized distorted wave Born approximation. As an illustration of the generality of this new recoupling technique, formulae are derived for the corrections to the centrifugal decoupling, the energy sudden and the infinite-order sudden approximations. Completely …
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Calculations on production reactions using the absorptive peripheral model
… reactions are treated. A comparison between the partial wave summation method~ which is used here, and the earlier impact parameter formalism is given. The reaction K p -> K*N is treated in detail, as both pseudoscalar and vector meson exchanges appear to be important. The possibility of …
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Discrete Variable Representation Of The Angular Variables In Quantum Three-Body Scattering
… using the Schrodinger equation. Traditionally, a partial-wave decomposition of the total wave function is carried out first, allowing the scattering system to be solved one partial wave at a time. This is convenient when the interaction is central, causing the total angular momentum to be …
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A Unified Analysis of the B = 2 System
… analyses of this two-baryon system. Several partial wave amplitudes show resonance-like behavior in these reactions.
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Hydrodynamic Analysis of Arrays of General Bodies
Wave energy is one of the world’s largest sources of renewable energy. However, wave energy farms are in an early stage of development and relevant research in this field has not produced a general agreement on design approach. Many research articles have been published analyzing optimal geometry …
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Investigating on elastic and inelastic nuclear scattering and polarisation
… scattering of nuclear particles are treated in a partial wave formalism. It is assumed that only a few partial waves having large angular momenta contribute significantly to the scattering amplitude. Parameterised elastic S-matrix elements are used in the Austern-Blair theory to obtain the …
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A theoretical study of some transport processes in semiconductors
… potentials to the propagation of electromagnetic waves in anon-active plasma.In particular the theory of dipole scattering in semiconductors isconsidered in some detail. The earlier part of text contains a discussionof the validity of the usual Brooks-Herring approximation to the electronpotential …
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Analysis and characterization of the integrated dielectric slab waveguide-wedge antenna using iterative mode-matching technique
… to the dielectric wedge antenna fed by a slab waveguide of the same material is presented. The method of solution involves modeling the wedge as a sequence of step discontinuities and using an iterative procedure to track forward and backward partial wave fields, expressed as modal expansions, …
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Numerical study of Regge cuts due to absorption in neutral pion photoproduction
… absorptive expressions is the Gottfried-Jackson partial wave form; the newer expression involves an integral over the intermediate scattering angle. The integral absorption expression is used for most of the calculations in this work. Unitarity and factorization are discussed briefly regarding …
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The scattering of spinning hadrons from lattice QCD
… in dynamically-coupled $^3{S}_1$ and $^3{D}_1$ partial-waves with $J^P=1^+$. No resonance enhancement is anticipated in the flavour exotic isospin-2 channel and as such it provides an ideal testing ground for this first calculation. I work at heavier than physical quark masses at the …
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"“Phonon"" and electron transport in glass-crystal dual materials"
… with cylindrical defective regions based on partial-wave analysis. Furthermore, I find glass-crystal duality for the vibrational transport in these hybrid systems. Lattice dynamics reveals substantial hybridization between the localized and delocalized modes, which induces avoided crossings …
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Conformal Boundaries, SPTs, and the Monopole-Fermion Problem
… the "fermion-monopole problem". Using a 4d - 2d partial wave reduction, we show that the problem of defining magnetic lines in chiral gauge theories reduces to defining boundary states for an effective 2d theory of Dirac fermions with certain chiral symmetries. For this to be possible, various 2d …