Evidence of a Near-Threshold Resonance in ^{11}B Relevant to the β-Delayed Proton Emission of ^{11}Be.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
01 Jul 2022
Historique:
received: 11 02 2022
revised: 29 04 2022
accepted: 01 06 2022
entrez: 16 7 2022
pubmed: 17 7 2022
medline: 17 7 2022
Statut: ppublish

Résumé

A narrow near-threshold proton-emitting resonance (E_{x}=11.4  MeV, J^{π}=1/2^{+}, and Γ_{p}=4.4  keV) was directly observed in ^{11}B via proton resonance scattering. This resonance was previously inferred in the β-delayed proton emission of the neutron halo nucleus ^{11}Be. The good agreement between both experimental results serves as a ground to confirm the existence of such exotic decay and the particular behavior of weakly bound nuclei coupled to the continuum. R-matrix analysis shows a sizable partial decay width for both, proton and α (Γ_{α}=11  keV) emission channels.

Identifiants

DOI: 10.1103/PhysRevLett.129.012501 PMID: 35841541
pubmed: 35841541
doi: 10.1103/PhysRevLett.129.012501
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

012501

Auteurs

Y Ayyad (Y)

IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

W Mittig (W)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

T Tang (T)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

B Olaizola (B)

ISOLDE-EP, CERN, CH-1211 Geneva 23, Switzerland.

G Potel (G)

Lawrence Livermore National Lab., P.O. Box 808, Livermore, California 94550, USA.

N Rijal (N)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

N Watwood (N)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

H Alvarez-Pol (H)

IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.

D Bazin (D)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

M Caamaño (M)

IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.

J Chen (J)

Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.

M Cortesi (M)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

B Fernández-Domínguez (B)

IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.

S Giraud (S)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

P Gueye (P)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

S Heinitz (S)

Laboratory of Radiochemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland.

R Jain (R)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

B P Kay (BP)

Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.

E A Maugeri (EA)

Laboratory of Radiochemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland.

B Monteagudo (B)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

F Ndayisabye (F)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

S N Paneru (SN)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

J Pereira (J)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

E Rubino (E)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

C Santamaria (C)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

D Schumann (D)

Laboratory of Radiochemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland.

J Surbrook (J)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

L Wagner (L)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

J C Zamora (JC)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.

V Zelevinsky (V)

Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA.
Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

Classifications MeSH