Ab initio calculation of the <math><mi>β</mi></math> decay from <math><mmultiscripts><mi>Be</mi><mprescripts/><none/><mn>11</mn></mmultiscripts></math> to a <math><mrow><msup><mrow/><mn>10</mn></msup><mi>Be</mi><mo>+</mo><mi>p</mi></mrow></math> resonance - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Phys.Rev.C Année : 2022

Ab initio calculation of the β decay from Be11 to a 10Be+p resonance

M.C. Atkinson
  • Fonction : Auteur
P. Navrátil
  • Fonction : Auteur
K. Kravvaris
  • Fonction : Auteur
S. Quaglioni
  • Fonction : Auteur

Résumé

The exotic β-delayed proton emission is calculated in Be11 from first principles using chiral two- and three-nucleon forces. To investigate the unexpectedly large branching ratio measured in Ayyad et al. [Phys. Rev. Lett. 123, 082501 (2019)], we calculate the proposed (1/2+,1/2) proton resonance in B11 using the no-core shell model with continuum. This calculation helps to address whether this enhancement is caused by unknown dark decay modes or an unobserved proton resonance. We report a branching ratio of bp=(1.3±0.5)×106, suggesting that its unexpectedly large value is caused by an unobserved proton resonance in B11.

Dates et versions

hal-03632260 , version 1 (06-04-2022)

Identifiants

Citer

M.C. Atkinson, P. Navrátil, G. Hupin, K. Kravvaris, S. Quaglioni. Ab initio calculation of the β decay from Be11 to a 10Be+p resonance. Phys.Rev.C, 2022, 105 (5), pp.054316. ⟨10.1103/PhysRevC.105.054316⟩. ⟨hal-03632260⟩
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