Strong Evidence for ^{9}N and the Limits of Existence of Atomic Nuclei.

Journal

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

Informations de publication

Date de publication:
27 Oct 2023
Historique:
received: 02 11 2022
revised: 16 03 2023
accepted: 07 09 2023
medline: 13 11 2023
pubmed: 13 11 2023
entrez: 13 11 2023
Statut: ppublish

Résumé

The boundaries of the chart of nuclides contain exotic isotopes that possess extreme proton-to-neutron asymmetries. Here we report on strong evidence of ^{9}N, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleons are unbound. With seven protons and two neutrons, this extremely proton-rich system would represent the first-known example of a ground-state five-proton emitter. The invariant-mass spectrum of its decay products can be fit with two peaks whose energies are consistent with the theoretical predictions of an open-quantum-system approach; however, we cannot rule out the possibility that only a single resonancelike peak is present in the spectrum.

Identifiants

DOI: 10.1103/PhysRevLett.131.172501 PMID: 37955509
pubmed: 37955509
doi: 10.1103/PhysRevLett.131.172501
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

172501

Auteurs

R J Charity (RJ)

Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.

J Wylie (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.

S M Wang (SM)

Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China.
Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, Shanghai 200438, China.

T B Webb (TB)

Department of Physics, Washington University, St. Louis, Missouri 63130, USA.

K W Brown (KW)

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

G Cerizza (G)

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

Z Chajecki (Z)

Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA.

J M Elson (JM)

Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.

J Estee (J)

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

D E M Hoff (DEM)

Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.

S A Kuvin (SA)

Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.

W G Lynch (WG)

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.

J Manfredi (J)

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

N Michel (N)

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.

D G McNeel (DG)

Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.

P Morfouace (P)

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

W Nazarewicz (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.

C D Pruitt (CD)

Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.

C Santamaria (C)

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

S Sweany (S)

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

J Smith (J)

Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.

L G Sobotka (LG)

Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.
Department of Physics, Washington University, St. Louis, Missouri 63130, USA.

M B Tsang (MB)

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

A H Wuosmaa (AH)

Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA.

Classifications MeSH