Deep excursion beyond the proton dripline. I. Argon and chlorine isotope chains
Artikel i vetenskaplig tidskrift, 2018

The proton-unbound argon and chlorine isotopes have been studied by measuring trajectories of their decay-in-flight products by using a tracking technique with microstrip detectors. The proton (1p) and two-proton (2p) emission processes have been detected in the measured angular correlations "heavy-fragment"+p and "heavy-fragment"+p+p, respectively. The ground states of the previously unknown isotopes Cl30 and Cl28 have been observed for the first time, providing the 1p-separation energies Sp of -0.48(2) and -1.60(8), MeV, respectively. The relevant systematics of 1p- and 2p-separation energies have been studied theoretically in the core+p and core+p+p cluster models. The first-time observed excited states of Ar31 allow one to infer the 2p-separation energy S2p of 6(34) keV for its ground state. The first-time observed state in Ar29 with S2p=-5.50(18) MeV can be identified as either a ground state or an excited state according to different systematics.

Författare

I. G. Mukha

Helmholtz

L Grigorenko

Joint Institute for Nuclear Research (JINR)

National Research Centre "Kurchatov Institute"

National Research Nuclear University

D. Kostyleva

Justus Liebig University Giessen

Helmholtz

L. Acosta

INFN - Laboratori Nazionali del Sud

Universidad Nacional Autonoma de Mexico

E. Casarejos

Universidad de Vigo

A. A. Ciemny

Uniwersytet Warszawski

W. Dominik

Uniwersytet Warszawski

J. A. Dueñas

Universidad de Huelva

V. Dunin

Joint Institute for Nuclear Research (JINR)

J. M. Espino

Universidad de Sevilla

A. Estradé

University of Edinburgh

F. Farinon

Helmholtz

A. S. Fomichev

Joint Institute for Nuclear Research (JINR)

H. Geissel

Helmholtz

Justus Liebig University Giessen

A. V. Gorshkov

Joint Institute for Nuclear Research (JINR)

Z. Janas

Uniwersytet Warszawski

G. Kaminski

Joint Institute for Nuclear Research (JINR)

Uniwersytet Warszawski

O. A. Kiselev

Helmholtz

R. Knobel

Justus Liebig University Giessen

Helmholtz

S. A. Krupko

Joint Institute for Nuclear Research (JINR)

M. Kuich

Politechnika Warszawska

Uniwersytet Warszawski

Y. Litvinov

Helmholtz

G. Marquinez-Durán

Universidad de Huelva

I. Martel

Universidad de Huelva

C. Mazzocchi

Uniwersytet Warszawski

C. Nociforo

Helmholtz

A. K. Ordúz

Universidad de Huelva

M. Pfützner

Helmholtz

Uniwersytet Warszawski

S. Pietri

Helmholtz

M. Pomorski

Uniwersytet Warszawski

A. Prochazka

Helmholtz

S. Rymzhanova

Joint Institute for Nuclear Research (JINR)

A. M. Sanchez-Benitez

Universidad de Huelva

C. Scheidenberger

Justus Liebig University Giessen

Helmholtz

P.G. Sharov

Joint Institute for Nuclear Research (JINR)

H. Simon

Helmholtz

B. Sitar

Univerzita Komenskeho v Bratislave

R. S. Slepnev

Joint Institute for Nuclear Research (JINR)

M. Stanoiu

Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering

P. Strmen

Univerzita Komenskeho v Bratislave

I. Szarka

Univerzita Komenskeho v Bratislave

M. Takechi

Helmholtz

Y. K. Tanaka

University of Tokyo

Helmholtz

H. Weick

Helmholtz

M. Winkler

Helmholtz

J. S. Winfield

Helmholtz

X. D. Xu

Beihang University

Justus Liebig University Giessen

Helmholtz

Mikhail Zhukov

Chalmers, Fysik

Physical Review C

24699985 (ISSN) 24699993 (eISSN)

Vol. 98 6 064308

Ämneskategorier

Acceleratorfysik och instrumentering

Subatomär fysik

Atom- och molekylfysik och optik

DOI

10.1103/PhysRevC.98.064308

Mer information

Senast uppdaterat

2020-09-15