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  • 1
    Electronic Resource
    Electronic Resource
    Born-Oppenheimer expansion: From muon distribution to dissipation in fission (2000)
    Springer
    Physics of atomic nuclei 63 (2000), S. 729-733 
    Details
    ISSN: 1063-7788
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that a consistent treatment of momentum translation by a muon in the problem of the distribution of muons among prompt-fission fragments modifies the nonadiabatic transition operator in the Born-Oppenheimer expansion and removes difficulties indicated in earlier calculations. The muon distribution for very asymmetric prompt fission proves to be highly sensitive to the velocity of the primary fragments at the scission point. The mean collective energy dissipated during saddle-to-scission descent due to the one-body mechanism is calculated within the same approach.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.855699
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  • 2
    Electronic Resource
    Electronic Resource
    Subbarrier conversion in 125Te45+ (1999)
    Springer
    Journal of experimental and theoretical physics 89 (1999), S. 845-849 
    Details
    ISSN: 1090-6509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We discuss the process of resonant subbarrier internal conversion of γ rays, where the converted electron is transferred to one of the atomic orbitals. For the first time we study how this process is affected by residual interactions: the splitting of the atomic terms in the total angular momentum of the atom, configuration mixing, and the magnetic interaction between the electrons of the atom. The calculations are done by the relativistic multiconfiguration Dirac-Fock method with allowance for the Breit interaction for the M1 transition with an energy of 35 492 eV in multiply charged ions of 125Te. We show that allowing for the residual interaction is obligatory if we want to calculate the conversion rate in the vicinity of a resonance correctly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.558923
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  • 3
    Electronic Resource
    Electronic Resource
    AnomalousE1 conversion in octupole-deformed nuclei and muon shake-off in prompt fission (1992)
    Springer
    The European physical journal 344 (1992), S. 55-58 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Js ; 25.70.−z ; 25.85.−w ; 36.10.−k
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It has been shown that the coexistence of octupole and quadrupole deformation in nuclei gives rise to strong penetration effects in internal conversion for theE1 transitions. This idea has been applied for evaluating the muon shake-off probabilityW sh. The value obtained,W sh/−0.5% per prompt fission, is in good agreement with the experimental result. Possibilities for further experimental studies of this effect are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291020
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  • 4
    Electronic Resource
    Electronic Resource
    Experimental evidence for muonicX-rays from fission fragments (1993)
    Springer
    The European physical journal 345 (1993), S. 425-426 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.−g ; 25.85.−W ; 36.10.−k ; 36.10.Dr
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In the spectrum of muonic X-rays of238U measured in coincidence with prompt fission events a structure has been found which is attributed to 2p→1s transitions of the muon attached to heavy fragments. The intensityI s of this structure relative to the strengthI pf observed for prompt fission has been determined to beI s/I pf=(6.0± 2.1) %. Although the experimental significance for the appeareance of this phenomenon is weak, this is the first experimental indication for its occuxence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282904
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    Paper (German National Licenses)
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