A dark matter solution from the supersymmetric axion model

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We study the effect of the late decaying saxino (the scalar superpartner of the axion) and find out that there is a possible dark matter solution from a class of supersymmetric extensions of the invisible axion model. In this class of models, the saxino which decays into two axions acts as the late decaying particle which reconciles the cold dark matter model with high values of the Hubble constant. Recent observations of the Hubble constant are converging to H{sub 0} = 70--80 km sec{sup {minus}1} Mpc{sup {minus}1}, which would be inconsistent with the standard mixed dark matter model. This class ... continued below

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11 p.

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Chang, Sanghyeon & Kim, Hang Bae May 1, 1996.

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  • Chang, Sanghyeon Florida Univ., Gainesville, FL (United States). Inst. for Fundamental Theory
  • Kim, Hang Bae Universidad Autonoma de Madrid (Spain). Dept. de Fisica Teorica

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Description

We study the effect of the late decaying saxino (the scalar superpartner of the axion) and find out that there is a possible dark matter solution from a class of supersymmetric extensions of the invisible axion model. In this class of models, the saxino which decays into two axions acts as the late decaying particle which reconciles the cold dark matter model with high values of the Hubble constant. Recent observations of the Hubble constant are converging to H{sub 0} = 70--80 km sec{sup {minus}1} Mpc{sup {minus}1}, which would be inconsistent with the standard mixed dark matter model. This class of models provides a plausible framework for the alternative cold dark matter plus late decaying particle model, with the interesting possibility that both cold dark matter and the extra radiation consist of axion. 15 refs.

Physical Description

11 p.

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INIS; OSTI as DE96010587

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  • Other Information: PBD: [1996]

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  • Other: DE96010587
  • Report No.: DOE/ER/40272--249
  • Report No.: UFIFT-HEP--96-8;FTUAM--96/15
  • Grant Number: FG05-86ER40272
  • DOI: 10.2172/228215 | External Link
  • Office of Scientific & Technical Information Report Number: 228215
  • Archival Resource Key: ark:/67531/metadc664822

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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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  • May 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • June 24, 2016, 2:08 p.m.

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Chang, Sanghyeon & Kim, Hang Bae. A dark matter solution from the supersymmetric axion model, report, May 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc664822/: accessed January 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.