KN partial-wave analysis and Z* resonances. [Cross sections, polarization, review]

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Recent measurements and partial-wave analyses of KN scattering below 3 GeV/c are reviewed. There is a large amount of new data on K/sup +/n elastic and charge-exchange scattering, both cross sections and polarizations, which were not yet analyzed. Forward dispersion relations predict a striking forward dip in the K/sup 0/p ..-->.. K/sup +/n differential cross section, which present neutral kaon beam measurements below 1.5 GeV/c are unable either to confirm or deny. K/sup +/p elastic polarization below 870 MeV/c was accurately measured for the first time. A K/sup +/p partial-wave analysis using these data claims a Z*/sub 1/ resonance in ... continued below

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Pages: 17

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Kelly, R.L. August 1, 1978.

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  • Lawrence Berkeley Laboratory
    Publisher Info: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
    Place of Publication: Berkeley, California

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Recent measurements and partial-wave analyses of KN scattering below 3 GeV/c are reviewed. There is a large amount of new data on K/sup +/n elastic and charge-exchange scattering, both cross sections and polarizations, which were not yet analyzed. Forward dispersion relations predict a striking forward dip in the K/sup 0/p ..-->.. K/sup +/n differential cross section, which present neutral kaon beam measurements below 1.5 GeV/c are unable either to confirm or deny. K/sup +/p elastic polarization below 870 MeV/c was accurately measured for the first time. A K/sup +/p partial-wave analysis using these data claims a Z*/sub 1/ resonance in the P/sub 13/ wave at 1800 MeV. Spin-rotation parameter measurements near the backward direction would be a good experimental test for the existence of this Z*/sub 1/. A partial-wave analysis of K/sup +/p ..-->.. K/sup 0/..delta../sup + +/ has found no evidence for a Z*/sub 1/ strongly coupled to the K..delta.. channel. 27 references.

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Pages: 17

Notes

Dep. NTIS, PC A02/MF A01.

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  • Meeting on exotic resonances, Hiroshima, Japan, 1 Sep 1978

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  • Report No.: LBL-7976
  • Report No.: CONF-780967-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 6322539
  • Archival Resource Key: ark:/67531/metadc1205247

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  • August 1, 1978

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 29, 2018, 9:19 p.m.

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Kelly, R.L. KN partial-wave analysis and Z* resonances. [Cross sections, polarization, review], article, August 1, 1978; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1205247/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.