PARTICLE-HOLE STATES IN NUCLEAR MATTER.
Item
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Title
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PARTICLE-HOLE STATES IN NUCLEAR MATTER.
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Identifier
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AAI8508715
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identifier
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8508715
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Creator
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MATYAS, CARL A.
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Contributor
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Carl M. Shakin
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Date
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1985
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Language
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English
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Publisher
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City University of New York.
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Subject
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Physics, Nuclear
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Abstract
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This work deals with the collective excitations in nuclear matter, from the point of view of the TDA approximation. Our calculations involved the construction of a Hamiltonian, expressed as a matrix in the space of particle-hole excitations with a given momentum transfer.;We used in this Hamiltonian an average single nucleon potential, and (in some cases) an effective interaction obtained for the potential HEA in the relativistic Brueckner-Hartree Fock theory.;The eigenvectors of the TDA-Hamiltonian were used to compute the strength of the collective response of nuclear matter to external probes. Our results, succinctly described in the last section, are summarized in a set of figures at the end of this monograph.;The basic features of the Brueckner theory needed for our work are presented in the last chapter. The relativistic corrections that we have introduced are discussed in a paper by M. R. Anastasio, L. S. Celenza, W. S. Pong, and C. M. Shakin on Relativistic Nuclear Structure (see Ref 9 in dissertation).;The specific form of the TDA equations that we used, and the procedure to calculate the degree of collectivity of the solutions, is studied in detail in the fifth chapter. A derivation of the TDA equations, and a discussion of the solutions for a separable potential, is given in the fourth chapter.;The structure of a non-relativistic potential for a system of two nucleons is examined in the third chapter, in several representations. On the other hand, the particle-hole states relevant to our discussions on the TDA equations are introduced in the first two chapters.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Physics
