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Digitale Medien

Future prospects discussed (1994)

Buch, P.

[s.l.] : Nature Publishing Group

Nature 368 (1994), S. 107-108

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] SIR In his Hypothesis (Nature 363, 315-319; 1993), J. R. Gott III defines an intelligent observer as a being capable of understanding and applying his "delta t argument". In this sense I am not such a being. I think the delta t argument is wrong. Gott claims to have derived some equations ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/368107b0

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Digitale Medien

Sternheimer free determination of the51V nuclear quadrupole moment from hyperfine structure measurements (1989)

Unkel, P. ; Buch, P. ; Dembczyński, J. ; [weitere]

Springer

The European physical journal 11 (1989), S. 259-271

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ISSN: 1434-6079

Schlagwort(e): 21.10.K ; 31.30.G ; 35.10.F

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The hyperfine structure (hfs) of 18 metastable states of51V has been measured by laser induced fluorescence. 15 of these states have been measured additionally very precisely by the ABMR-LIRF method. Using results of earlier hfs measurements, the hfs of altogether 33 fine structure states is analyzed using a method of simultaneous parametrization of one- and two-body interactions in the atomic hfs of the model space 3d 3 +M 4s 2 −M (M = 0, 1, 2). The hfs of these states is described by 16 parameters for the magnetic dipole interaction and 12 parameters for the electric quadrupole interaction. From these model space parameters corresponding configuration dependent parameters for the three configurations were determined. These parameters allow a prediction of the hfs constants of all states of the modelspace within an accuracy of 5 to 10%. The evaluation of the nuclear quadrupole moment of51V, free of Sternheimer corrections up to second order, yielded the value of -0.043(5) barn.