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Pair correlations in nuclei involved in neutrinoless double $\beta$ decay: $^{76}$Ge and $^{76}$Se

Abstract : Precision measurements were carried out to test the similarities between the ground states of 76Ge and 76Se. The extent to which these two nuclei can be characterized as consisting of correlated pairs of neutrons in a BCS-like ground state was studied. The pair removal (p,t) reaction was measured at the far forward angle of 3°. The relative cross sections are consistent (at the 5% level) with the description of these nuclei in terms of a correlated pairing state outside the N=28 closed shells with no pairing vibrations. Data were also obtained for 74Ge and 78Se.
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http://hal.in2p3.fr/in2p3-00153268
Contributor : Michel Lion <>
Submitted on : Friday, June 8, 2007 - 4:35:08 PM
Last modification on : Thursday, February 1, 2018 - 1:26:30 AM

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S. J. Freeman, J. P. Schiffer, A.C.C. Villari, J. A. Clark, C. Deibel, et al.. Pair correlations in nuclei involved in neutrinoless double $\beta$ decay: $^{76}$Ge and $^{76}$Se. Physical Review C, American Physical Society, 2007, 75, pp.051301. ⟨10.1103/PhysRevC.75.051301⟩. ⟨in2p3-00153268⟩

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