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Showing 1 to 20 of 22 for “"Gell"”.
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The ratio gA/gV in cavity QCD
… employing a classical external W- field. The Gell-Mann and Low theorem is extended to include non-diagonal matrix elements and degenerate perturbation theory. The Sucher form of the Gell-Mann and Low theorem is employed to calculate corrections of order GFg² in the weak and strong coupling …
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Pions and vector mesons at finite temperature from QCD sum rules
… temperature corrections to the current algebra Gell-Mann, Oakes and Renner(GMOR) relation in SU(2) X SU(2), the temperature behaviour of the pion mass and the q2 and T dependence of the ρππ vertex function in the space-like region are investigated.
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Objects As Polyagents: Tracing The Histories Of The Gweagal Spears
… to become constituted of multiple agencies (Gell 1998) through their interaction with various actants in complex and ever-expanding networks of association (Latour 1993; 2005). It does so by analysing how such objects become symbols for multiple histories, presences, and political agendas …
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Perturbative quantum chromodynamics in a cavity
… boundary conditions of the MIT group. Using the Gell-Mann and Low theorem and a modified version of Goldstones theorem we formulate perturbation theory. In 4th order perturbation theory we calculate the Feynman diagrams corresponding to configuration mixing-and two gluon annihilation. The results …
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The anomalous magnetic moment of baryons in cavity QCD
Using a generalised form of the Gell-Mann and Low theorem, all the diagrams in cavity QCD to order as that contribute to the magnetic moment are calculated. The calculations are performed for massive quarks so a mass renormalisation scheme has been developed to cope with the new divergences this …
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Violation of CP invariance in weak interactions
… S [not equal] +/- 2 has as a consequence the Gell-Mann-Okubo mass formulas and the FID ratios for both the axial vector current and the mesonbaryon strong interactions.
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Canonical quantization and quantum chromodynamics in a cavity
… fields in the Dirac picture, based on the Gell-Mann and Low Theorem and the Dyson expansion of the time evolution operator. Subsequently, confinement is introduced phenomenologically by imposing, on the quark, gluon and ghost field operators, the linear boundary conditions of the M.I.T. bag …
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The anomalous magnetic moment of the nucleon in cavity QCD
… a spherical cavity using a symmetric form of the Gell-Mann and Low theorem. This formalism allows one to generate any desired term in the perturbation series, in a manner which is similar to the familiar Feynman rules in free space. All corrections to order eg² in the electromagnetic and strong …
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Crafting the Self: How participating in coaching conversations can shape a recipient’s learning
… an aesthetic metaphor informed by Bakhtin and Gell, in which coach and coachee - described as the recipient are actively engaged in emotionally crafting and shaping the other.
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A new mass spectrometric assay of N8-acetylspermidine deacetylase and partial purification of the enzyme
… partially purified by protein precipitation and gell filtration chromatography. Affinity chromatography was tentatively applied for further isolation of the enzyme, but was not yet successful.</p>
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Pu-abi's Adornment for the Afterlife: Materials and Technologies of Jewelry at Ur in Mesopotamia
… methodological operations akin to what Alfred Gell has called the "technology of enchantment and enchantment of technology" and allowed these ornaments to materialize from their creation as a group of magically and ritually charged objects.
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Creative Practice: How Communities were ‘made’ at Çatalhöyük
… Bennett (2010a), Barad (2003, 2007, 2012), and Gell (1998) I formulate a critically-informed but practically embedded methodology that finds material “phenomena” (Barad 2003) at the settlement. Çatalhöyük offers a particularly unique example of social organisation as it is believed to have been …
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News Analytics for Global Infectious Disease Surveillance
… we formulate Guided Epidemiological Line List (GELL), an approach that combines neural word embeddings with information extracted from dependency parse-trees at the sentence level to extract line list features. (iii) Finally, for the third problem, we aim to characterize diseases automatically …
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Coupling strength and nuclear reactions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1951.
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An interdisciplinary study of an aesthetic particularism: the ‘Split representation in the Art of Asia and America’
… researches of the British anthropologist Alfred Gell. Before exposing the cases of the widely acknowledged connections between the pattern making habits amongst certain hunter-gatherers tribes with the taking of entheogenic drugs during rituals, with the Shipibo people from the Peruvian Amazonia …
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Cult ritual and social organisation among the Mianmin
The thesis is an analysis of the relationship between rituals of the male cult and social organisation among the Mianmin of the West Sepik Province of Papua New Guinea. More specifically, i t deals with the West Mianmin, who live in the valleys of the major tributaries of the August River which …
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Cult ritual and social organisation among the Mianmin
The thesis is an analysis of the relationship between rituals of the male cult and social organisation among the Mianmin of the West Sepik Province of Papua New Guinea. More specifically, i t deals with the West Mianmin, who live in the valleys of the major tributaries of the August River which …
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Cold, dense quark matter
… the pion self-energy, deriving a generalized Gell-Mann–Oakes–Renner (GMOR) relation. We thus establish a picture of continuous chiral symmetry breaking from vacuum to high density quark matter, and discuss its implications and connection to the quark-hadron continuity conjecture. In Chapter 4 …
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Semiose des Rituals : eine Kritik ritualtheoretischer Begriffsbildung
… Begriffe unter dem Gesichtspunkt des von Alfred Gell entwickelten Konzepts der Indexes of Agency zusammengetragen und unter dem Begriff der fraktalen Dynamik weitergeführt. Im fünften Kapitel geht es um das Verschieben des theoretischen Rahmens und Fokus. Dabei wird wieder eine metatheoretische …
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The Material Language of Protest: Textile Art and Clothing Craftivism, Britain 1970-2018
… and Derrida) and material cultural studies (Gell and de Certeau) to determine the communicative capacity of craftivism as an object and practice of reform, as well as to understand the role of its makers, which are the key research inquiries. This theoretical framework helps to conceptualise …
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