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Träfflista för sökning "WFRF:(Jonson Björn) srt2:(2005-2009);pers:(Krucken R.);pers:(Nociforo C.);pers:(Janik R.)"

Sökning: WFRF:(Jonson Björn) > (2005-2009) > Krucken R. > Nociforo C. > Janik R.

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1.
  • Kanungo, R., et al. (författare)
  • One-Neutron Removal Measurement Reveals O-24 as a New Doubly Magic Nucleus
  • 2009
  • Ingår i: Physical Review Letters. - 0031-9007. ; 102:15
  • Tidskriftsartikel (refereegranskat)abstract
    • The first measurement of the momentum distribution for one-neutron removal from O-24 at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99 +/- 4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63 +/- 7 mb. The results are well explained with a nearly pure 2s(1/2) neutron spectroscopic factor of 1.74 +/- 0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that O-24 is a new doubly magic nucleus.
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2.
  • Nociforo, C., et al. (författare)
  • Shell Closure N=16 in O-24
  • 2009
  • Ingår i: Nuclear Structure and Dynamics '09. - 0094-243X. ; 1165, s. 90-93461
  • Konferensbidrag (refereegranskat)abstract
    • Advanced nuclear structure models predict the presence of the shell closures N=14, 16 in neutron-rich O isotopes rather than N=20. Spectroscopic investigations performed at the neutron drip line have recently confirmed such predictions showing that the O-24 is a doubly magic nucleus (Z=8, N=16). Predictions within the shell model calculation for the O-23,O-24 ground state have been confirmed measuring their spectroscopic factors. Results obtained in one-neutron removal reactions performed by using in-flight radioactive ion beams produced at the Fragment Separator FRS of GSI are reported.
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