Big-bang nucleosynthesis with high-energy photon injection

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The author discusses the photodissociation of light elements due to the radiative decay of a massive particle, and he has shown how to constrain the model parameters from the observed light-element abundances. He adopted two quasar absorption system (QAS) D/H values, as well as solar system data for D/H and {sup 3}He/H. For each of these, he used two {sup 4}He values. He presents his results in terms of the confidence level at which each theoretical parameter set (i.e., the set of properties of a radiatively decaying particle) is excluded by the observed abundances. His algorithm for computing the confidence ... continued below

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Medium: P; Size: 135 pages

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Holtmann, Erich N. May 1, 1999.

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This thesis or dissertation is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 13 times , with 5 in the last month . More information about this document can be viewed below.

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Description

The author discusses the photodissociation of light elements due to the radiative decay of a massive particle, and he has shown how to constrain the model parameters from the observed light-element abundances. He adopted two quasar absorption system (QAS) D/H values, as well as solar system data for D/H and {sup 3}He/H. For each of these, he used two {sup 4}He values. He presents his results in terms of the confidence level at which each theoretical parameter set (i.e., the set of properties of a radiatively decaying particle) is excluded by the observed abundances. His algorithm for computing the confidence level is consistent and general enough to apply not only to the scenarios investigated in this work, but also to many other non-standard theories of BBN.

Physical Description

Medium: P; Size: 135 pages

Notes

OSTI as DE00753050

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  • Other Information: TH: Thesis (Ph.D.); Submitted to Univ. of California, Berkeley, CA (US)

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  • Report No.: LBNL--43276
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 753050
  • Archival Resource Key: ark:/67531/metadc710804

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • May 1, 1999

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 4, 2016, 3:57 p.m.

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Holtmann, Erich N. Big-bang nucleosynthesis with high-energy photon injection, thesis or dissertation, May 1, 1999; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc710804/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.