Il Nuovo Cimento (1955-1965)

, Volume 30, Issue 2, pp 622–643 | Cite as

Determination of the spin of7Liλ from final-state nuclear interactions

  • T. D. Sanders
Article

Summary

The decay7Liλ→ π + N +6Li may be strongly affected by a sharp 5/2- resonance in the final-state N+6Li system. Theoretical estimates of the effect of this resonance upon distributions, in angle and energy, of the decay products are given. These estimates are based upon the assumption that a complex square-well potential can be used to represent the N+6Li reaction at the resonance energy. It is found that the decay-energy spectra differ substantially for the two possible assignmentsJ=1/2 andJ= 3/2 for the7Liλ spin; the angular distributions also differ according to the choice of the7Liλ spin.

Riassuxto

Il decadimento7Liλ → π + N +6Li puÒ essere fortemente influenzato da una netta risonanza 5/2 nel sistema dello stato tinale N +6Li. Si riportano le valutazioni teoriche dell‘effetto di questa risonanza sulle distribuzioni, in angolo ed energia, dei prodotti del decadimento. Queste valutazioni sono basate sull‘ipotesi che un Potenziale complesso a buc.a quadrata puÒ essere usato per rappresentare la reazione N +6Li all‘energia di risonanza. Si trova che gli spettri di energia del decadimento differiscono sostanzialmente alle due possibili assegnazioniJ=1/2 eJ=2/3 di spin al7Liλ; anche le distribnzioni angolari differiscono secondo la scelta dello spin del7Liλ.

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Copyright information

© Società Italiana di Fisica 1963

Authors and Affiliations

  • T. D. Sanders
    • 1
  1. 1.Washington UniversitySaint Louis

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