8Be parmeters from α-α scattering

Kermode, M W

doi:10.1016/0375-9474(69)91056-2

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1971

2008

Publication Types

Select...

Article5

Other2

Relationship

Self Cite0

Independent7

Authors

Journals

Cited by 9 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…( 8) we find α th 0 = −1210(70)fm and r th 0 = 1.03(1)fm, in reasonable agreement with α 0 = −1630(150)fm and r 0 = 1.08(1)fm from a low energy analysis of the data [19]. The correlation between (Q, Γ) and (α 0 , r 0 ) was pointed out long ago [20,22] but has no predictive power. The underlying chiral TPE potential correlates, in addition, r 0 with α 0 and Γ with Q.…”

supporting

confidence: 80%

Alpha-Alpha scattering, chiral symmetry and [sup 8]Be lifetime

Arriola¹,

Rupp²,

Beveren³

et al. 2008

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

supporting

confidence: 80%

Alpha-Alpha scattering, chiral symmetry and [sup 8]Be lifetime

Arriola¹,

Rupp²,

Beveren³

et al. 2008

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…( 14) we find α th 0 = −1210(70)fm and r th 0 = 1.03(1)fm, in reasonable agreement with α 0 = −1630(150)fm and r 0 = 1.08(1)fm from a low energy analysis of the data [27]. The correlation between (Q, Γ) and (α 0 , r 0 ) was pointed out long ago [28,29] but has no predictive power. As we see, this is compatible with the underlying chiral TPE potential which, in addition, correlates r 0 with α 0 and Γ with Q.…”

supporting

confidence: 80%

Alpha-alpha interaction with chiral two pion exchange and 8Be lifetime

Arriola

2007

Preprint

View full text Add to dashboard Cite

Assuming that alpha particles are described by a scalar-isoscalar chiral invariant heavy field it is shown how chiral symmetry determines the alpha-alpha interaction at long distances unambiguously from dimensional power counting of an effective chiral Lagrangean. The leading strong contribution is given by a two pion exchange potential which turns out to be attractive and singular at the origin, hence demanding renormalization. When 8 Be is treated as a resonance state a model independent correlation between the Q-factor and lifetime 1/Γ for the decay into two alpha particles arises. For parameters compatible with potential model analyses of low energy πα scattering it is found a Breit-Wigner width Γ = 4.3(3)eV very close to the experimental value, Γexp. = 5.57(25)eV.

show abstract