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Sökning: WFRF:(Grishina O. V.)

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1.
  • Menushenkov, V. P., et al. (författare)
  • Effect of heat treatment on the microstructure and magnetic properties of as-cast SmCo 5-based alloys
  • 2012
  • Ingår i: Magnetism and Magnetic Materials V. - : Trans Tech Publications Inc.. - 9783037854365 ; , s. 204-207
  • Konferensbidrag (refereegranskat)abstract
    • Local and crystalline structures of as-cast SmCo 5±x alloys subjected to various heat treatments were studied using EXAFS, X-ray diffraction, and metallographic analyses. XRD and EXAFS analyses of SmCo 5-x alloys show the evidence of the Sm-enrichment of the SmCo 5 phase. The behavior of the lattice parameters of SmCo 5 phase in Sm-rich alloys during aging between 1120°C and 700°C can be related to the phase transformation of SmCo 5 into SmCo 5-x phases.
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2.
  • Adlarson, Patrik, et al. (författare)
  • Abashian-Booth-Crowe Effect in Basic Double-Pionic Fusion : A New Resonance?
  • 2011
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 106:24, s. 242302-
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn -> d pi(0)pi(0) over the full energy region of the ABC effect, a pronounced low-mass enhancement in the pi pi-invariant mass spectrum. The measurements, which cover also the transition region to the conventional t- channel Delta Delta process, were performed with the upgraded WASA detector setup at COSY. The data reveal the Abashian-Booth-Crowe effect to be uniquely correlated with a Lorentzian energy dependence in the integral cross section. The observables are consistent with a narrow resonance with m = 2.37 GeV, Gamma approximate to 70 MeV and I(J(P)) = 0(3(+)) in both pn and Delta Delta systems. Necessary further tests of the resonance interpretation are discussed.
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