DISSOCIATION OF MOLECULAR IONS BY ELECTRIC FIELDS (thesis-Part II)

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The reactions pi /sup -/ + p yields p + p + n and pi /sup -/ + p yields p + d were investigated. The calculations are based on thirdorder perturbation theory with pseudoscalar coupling between nucleons and pions and with a phenomenological treatment of the nucleon-nucleon interaction in the final state. The final-state interactions of the antinucleon are neglected. Cross sections are given in graphical form for the reactions and for trsnsitions between eigenstates of isotopic spin. The final-state nucleon-nucleon interaction is shown to have a lnrge effect on the cross sections. The cross section for the reaction ... continued below

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Pages: 66

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Hiskes, J R May 1, 1960.

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The reactions pi /sup -/ + p yields p + p + n and pi /sup -/ + p yields p + d were investigated. The calculations are based on thirdorder perturbation theory with pseudoscalar coupling between nucleons and pions and with a phenomenological treatment of the nucleon-nucleon interaction in the final state. The final-state interactions of the antinucleon are neglected. Cross sections are given in graphical form for the reactions and for trsnsitions between eigenstates of isotopic spin. The final-state nucleon-nucleon interaction is shown to have a lnrge effect on the cross sections. The cross section for the reaction pi /sup -/ + p yields p + d is found to be relatively large. At an energy of 10 Mev abcve threshold in the center-of-momentum system the ratio of this cross section to that for pi /sup -/ + p yields p + p + n is about 5: 1. At an energy of 40 Mev above threshold this ratio hns decreased to 1: I. The total cross section for the reaction leading to the unbound final state is calculated by assuming a modified Fermi statistical model. At an energy 100 Mev above threshold, this cross section is approximately 0.1 mb. A theoretical expression for the transition amplitude is developed. (auth)

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Pages: 66

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: UCRL-9182
  • Grant Number: W-7495-ENG-48
  • DOI: 10.2172/4160970 | External Link
  • Office of Scientific & Technical Information Report Number: 4160970
  • Archival Resource Key: ark:/67531/metadc868832

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  • May 1, 1960

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  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 31, 2016, 3:08 p.m.

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Hiskes, J R. DISSOCIATION OF MOLECULAR IONS BY ELECTRIC FIELDS (thesis-Part II), report, May 1, 1960; United States. (digital.library.unt.edu/ark:/67531/metadc868832/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.