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  • 1985-1989  (4)
  • 23.20.Ck  (4)
  • 21.10.R
Datenquelle
Materialart
Erscheinungszeitraum
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Two-quasiparticle bands in72Br (1988)
    Springer
    The European physical journal 329 (1988), S. 51-61 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 27.50.+e ; 23.20.Ck ; 21.60.Ev
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract High spin states in the doubly odd nucleus72Br were investigated via the reaction58Ni(16O,pn) at 52–65 MeV beam energy. A multi-element detector system consisting of ten Compton supressed Ge detectors (OSIRIS) and two NE213 neutron detectors was used to establish the yrast bands up to 5 MeV excitation energy and probable spins of 15+ resp. 14−. The lifetimes of 12 states and lifetime limits of four states were measured with the recoil distance method, among them four 0.5–3.1 ns isomers. Doppler broadened line shapes obtained in an additionalγγ-coincidence experiment via the reaction40Ca(36Ar, 3pn) at 125 MeV revealed further lifetimes and (very short) side feeding times. Three rotational bands were established with deformation parameters ¦β 2¦≈0.3 and moment of inertia parameters $$\tilde f$$ /ħ 2=36 MeV−1 (K ρ=1−) resp. 23 MeV−1; their quasi-particle configurations are being discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01294815
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    p-n Multiplets and band-like structures in106Ag (1988)
    Springer
    The European physical journal 331 (1988), S. 433-438 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 27.60.+j ; 23.20.Ck ; 21.60.Cs
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The half-life of a 3− excited state in106Ag was measured as T1/2 (364.4 keV)=0.9±0.1 ns using the103Rh(α, n)106Ag reaction. The intramultiplet transition rate B(M1, 3−→2−) indicates that the configuration π(g9/2)0 −2π(p1/2)−1 vd5/2 can be assigned. A low-lying 3+ isomer, as known in108,110Ag, was not found in106Ag, what is explained by the raising energy of the vd3/2 shell with decreasing neutron number. For the 6− bandhead of a rotational-like structure T1/2 (765.2 keV)〈 0.2 ns was derived in contradiction to an earlier prediction (200 ns). Indirect evidence for a negative sign of the magnetic moment of105Ag (g.s.) is obtained.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01291901
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Lifetime measurements in70Se and72Se (1986)
    Springer
    The European physical journal 325 (1986), S. 45-53 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.20.Ck ; 27.50.+e
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Mean lives and limits of lifetimes have been determined for some ten mostly yrast states in70Se, by means of the recoil distance Doppler shift technique. The states were excited in the reaction40Ca(36Ar,α2p) at 115 MeV resp. the reaction58Ni(14N,pn) at 39 MeV beam energy. The systematic decrease ofB(E2) values along the the ground band transitions indicates a band crossing consistent with theγ-ray energies. Effects of continuum feeding times in both reactions are being discussed. The lifetimes of the lowest three yrast transitions in72Se have been remeasured by means of the reactions40Ca(36Ar,4p) and60Ni(14N,pn).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01294241
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  • 4
    Digitale Medien
    Digitale Medien
    Transition probabilities and hole-core coupled configurations in107In (1987)
    Springer
    The European physical journal 328 (1987), S. 23-29 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.20.Ck ; 27.60.+j ; 21.60.−n
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The nucleus107In was studied by in-beam spectroscopic methods in (HI, xn yp) reactions. Spin and parity values of some levels were determined by conversion electron andγ-ray measurements. Using the generalized centroid shift method, the half-lives T1/2(19/2+, 2003.6 keV)=0.6±0.2 ns and T1/2(17/2+, 1853.4 keV)=1.7±0.3 ns were measured. The systematics of the lowest members of the multipletπg 9 2/−1 ×6 1 + in111,109,107In is discussed
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01295179
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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