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  • 1
    Electronic Resource
    Electronic Resource
    γ-γ Physics with peripheral relativistic heavy ion collisions (1988)
    Springer
    The European physical journal 330 (1988), S. 77-81 
    Details
    ISSN: 1434-601X
    Keywords: 12.20.-m ; 11.80.-m ; 25.70.Np
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The high flux of equivalent photons present in relativistic heavy ion collisions of two chargesZ 1 andZ 2 gives rise to the collision of two equivalent photons. The cross-sections for various processes are directly related to the correspondingγ- γ cross-sections. As compared toγ- γ physics being studied at e+ e− colliders, we find that high energy states will not be so easily accessible at the existing facilities, however, the enhancement factor (Z 1 Z 2)2 in the expression for the cross section will provide very large photon fluxes for lower energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287267
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of the sequential break-up mode6Li→6Li*(31 +)→α+d of 156 MeV6Li projectiles on208Pb in the very forward angular hemisphere (1991)
    Springer
    The European physical journal 339 (1991), S. 489-493 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.−z ; 25.70.Np ; 95.30.J
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The sequential break-up of 156 MeV6Li projectiles colliding with208Pb has been investigated in the very forward angular hemisphere in order to explore the role of the Coulomb and nuclear interaction in inducing projectile break-up processes. The experiments use the Karlsruhe spectrograph “Little John” with a newly developed technique to detect efficiently break-up pairs ofα-particles and deuterons emitted with small relative energies and within a small opening angle. The observed differential cross section for the projectile excitation6Li→6Li* (I=3i +) has been analysed (together with forward elastic scattering) by a coupled channel approach, and various sensitivities to the nuclear potential and other ingredients have been studied. We conclude, that in the angular region below half the grazing angle the excitation is completely due to the Coulomb force. This feature is a basis for an application of the disintegration approach for studies of radiative capture cross section of astrophysical interest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01288432
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    Paper (German National Licenses)
    Fulltext
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