Investigation of pion-nucleus interactions

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The double isovector giant state has been observed in the ({pi}{sup {minus}}, {pi}{sup +}) {Delta}T{sub z} = +2 double-charge-exchange reaction on {sup 13}C, {sup 27}Al, {sup 40}Ca, {sup 56}Fe, {sup 59}Co, and {sup 93}Nb. The resonances observed in the ({pi}{sup {minus}}, {pi}{sup +}) reaction are closely related via Coulomb displacement energy and isospin symmetry to the resonances measured in the inverse ({pi}{sup +}, {pi}{sup {minus}}) reaction on the same nuclei. The new observations provide a direct determination of the upper isospin component of the double giant dipole state, which is generally very weak in the ({pi}{sup +}, {pi}{sup {minus}}) reaction. ... continued below

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Pages: (34 p)

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Moore, C. F. September 1, 1991.

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Description

The double isovector giant state has been observed in the ({pi}{sup {minus}}, {pi}{sup +}) {Delta}T{sub z} = +2 double-charge-exchange reaction on {sup 13}C, {sup 27}Al, {sup 40}Ca, {sup 56}Fe, {sup 59}Co, and {sup 93}Nb. The resonances observed in the ({pi}{sup {minus}}, {pi}{sup +}) reaction are closely related via Coulomb displacement energy and isospin symmetry to the resonances measured in the inverse ({pi}{sup +}, {pi}{sup {minus}}) reaction on the same nuclei. The new observations provide a direct determination of the upper isospin component of the double giant dipole state, which is generally very weak in the ({pi}{sup +}, {pi}{sup {minus}}) reaction. The comparison between the double dipole in the two double-charge-exchange modes gives valuable information on the isospin splitting and the Pauli-blocking effects for isotensor transitions.

Physical Description

Pages: (34 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Other: DE92004061
  • Report No.: DOE/ER/40343-5
  • Grant Number: FG05-87ER40343
  • DOI: 10.2172/6048719 | External Link
  • Office of Scientific & Technical Information Report Number: 6048719
  • Archival Resource Key: ark:/67531/metadc1101064

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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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  • September 1, 1991

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • March 20, 2018, 1:19 p.m.

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Moore, C. F. Investigation of pion-nucleus interactions, report, September 1, 1991; Austin, Texas. (digital.library.unt.edu/ark:/67531/metadc1101064/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.