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  • 1985-1989  (2)
  • 1986  (2)
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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Measurements ofn−p correlations in the reaction of relativistic neon with uranium (1986)
    Springer
    The European physical journal 323 (1986), S. 391-398 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.Np
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report a preliminary measurement of coincident neutron-proton pairs emitted at 45° in the interaction of 400, 530, and 650 MeV/A neon beams incident on uranium. Charged particles were identified by time of flight and momentum, as determined in a magnetic spectrometer. Neutral particles were detected using a thick plastic scintillator, and their time of flight was measured between an entrance scintillator, triggered by a charged particle, and the neutron detector. The scatter plots and contour plots of neutron momentum vs. proton momentum appear to show a slight correlation ridge above an uncorrelated background. The projections of this plane on then-p momentum difference axis are essentially flat, showing a one standard deviation enhancement for each of the three beams energies. At each beam energy, the calculated momentum correlation function for the neutron-proton pairs is enhanced near zero neutron-proton momentum difference by approximately one standard deviation over the expected value for no correlation. This enhancement is expected to occur as a consequence of the attractive final state interaction between the neutron and proton (i.e., virtual or “singlet” deuterons). The implications of these measurements are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313520
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Conductance and ion association in dimethylsulfite (1986)
    Springer
    Journal of solution chemistry 15 (1986), S. 663-673 
    Details
    ISSN: 1572-8927
    Keywords: Conductivities ; Ion association ; 1∶1 electrolytes ; acetone ; dimethylsulfite
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The electrolytic conductances of LiClO4, LiAsF6, NaClO4 and the n-butylammonium salts Bu4NCl, Bu4NClO4, and Bu4NBPh4 (tetraphenylborate) have been determined in dimethylsufite at 25°C. Ion association constants calculated from these data are interpreted in terms of solvent-separated ion pairs (for LiClO4, LiAsF6, and NaClO4), and contact ion pairs (for the n-butyl-ammonium salts). Comparisons are made for analogous electrolytes in acetone, and in which all salts form contact ion pairs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00644598
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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