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@ARTICLE{Sudr:54708,
      author       = {Sudár, S. and Qaim, S. M.},
      title        = {{C}ross sections for the formation of 195{H}gm,g,
                      197{H}gm,g, and 196{A}um,g in alpha and 3{H}e-particle
                      induced reactions on {P}t: {E}ffect of level density
                      parameters on the calculated isomeric cross-section ratio},
      journal      = {Physical review / C},
      volume       = {73},
      number       = {3},
      issn         = {0556-2813},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {PreJuSER-54708},
      pages        = {034613},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Excitation functions were measured for the reactions
                      Pt-nat(He-3,xn)Hg-195(m,g),Pt-nat(He-3,xn)Hg-197(m,g),Pt-nat(He-3,x)Au-196(m,g),
                      and Pt-nat(alpha,xn)Hg-197(m,g) over the energy range of
                      18-35 MeV for He-3 particles and 17-26 MeV for alpha
                      particles. The reactions Au-197(p,n)Hg-197(m,g) were also
                      investigated over the proton energy range of 6-20 MeV. The
                      three projectiles were produced at the Julich
                      variable-energy compact cyclotron (CV 28). Use was made of
                      the activation technique in combination with conventional
                      high-resolution as well as low-energy HPGe-detector
                      gamma-ray spectroscopy. For most of the reactions, the
                      present measurements provide the first consistent sets of
                      data. From the available experimental data, isomeric
                      cross-section ratios were determined for the above-mentioned
                      reactions. Nuclear model calculations using the code STAPRE,
                      which employs the Hauser-Feshbach (statistical model) and
                      exciton model (precompound effects) formalisms, were
                      undertaken to describe the formation of both the isomeric
                      and the ground states of the products. The calculations were
                      compared with the results of the EMPIRE-II code. The
                      excitation functions of the (He-3,xn) and (alpha,xn)
                      processes are described well by the theory. In the case of
                      (He-3,pxn) reactions, however, considerable deviations were
                      observed between the experiment and the theory, presumably
                      due to strong contributions from direct interactions. A
                      description of the isomeric cross-section ratio by the model
                      was possible only with a very low value of eta, i.e., the
                      Theta(eff)/Theta(rig) ratio. A mass dependence of eta is
                      proposed.},
      keywords     = {J (WoSType)},
      cin          = {INC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB53},
      pnm          = {Funktion und Dysfunktion des Nervensystems},
      pid          = {G:(DE-Juel1)FUEK409},
      shelfmark    = {Physics, Nuclear},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000236466900049},
      doi          = {10.1103/PhysRevC.73.034613},
      url          = {https://juser.fz-juelich.de/record/54708},
}