Deep excursion beyond the proton dripline. I. Argon and chlorine isotope chains
Journal article, 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.

Author

I. G. Mukha

GSI Helmholtz Centre for Heavy Ion Research

L Grigorenko

National Research Nuclear University

National Research Centre "Kurchatov Institute"

Joint Institute for Nuclear Research

D. Kostyleva

Justus Liebig University Giessen

GSI Helmholtz Centre for Heavy Ion Research

L. Acosta

INFN - Laboratori Nazionali del Sud

Universidad Nacional Autonoma de Mexico

E. Casarejos

Universidad de Vigo

A. A. Ciemny

University of Warsaw

W. Dominik

University of Warsaw

J. A. Dueñas

University of Huelva

V. Dunin

Joint Institute for Nuclear Research

J. M. Espino

University of Seville

A. Estradé

University of Edinburgh

F. Farinon

GSI Helmholtz Centre for Heavy Ion Research

A. S. Fomichev

Joint Institute for Nuclear Research

H. Geissel

Justus Liebig University Giessen

GSI Helmholtz Centre for Heavy Ion Research

A. V. Gorshkov

Joint Institute for Nuclear Research

Z. Janas

University of Warsaw

G. Kaminski

University of Warsaw

Joint Institute for Nuclear Research

O. A. Kiselev

GSI Helmholtz Centre for Heavy Ion Research

R. Knobel

GSI Helmholtz Centre for Heavy Ion Research

Justus Liebig University Giessen

S. A. Krupko

Joint Institute for Nuclear Research

M. Kuich

Warsaw University of Technology

University of Warsaw

Y. Litvinov

GSI Helmholtz Centre for Heavy Ion Research

G. Marquinez-Durán

University of Huelva

I. Martel

University of Huelva

C. Mazzocchi

University of Warsaw

C. Nociforo

GSI Helmholtz Centre for Heavy Ion Research

A. K. Ordúz

University of Huelva

M. Pfützner

University of Warsaw

GSI Helmholtz Centre for Heavy Ion Research

S. Pietri

GSI Helmholtz Centre for Heavy Ion Research

M. Pomorski

University of Warsaw

A. Prochazka

GSI Helmholtz Centre for Heavy Ion Research

S. Rymzhanova

Joint Institute for Nuclear Research

A. M. Sanchez-Benitez

University of Huelva

C. Scheidenberger

Justus Liebig University Giessen

GSI Helmholtz Centre for Heavy Ion Research

P.G. Sharov

Joint Institute for Nuclear Research

H. Simon

GSI Helmholtz Centre for Heavy Ion Research

B. Sitar

Comenius University in Bratislava

R. S. Slepnev

Joint Institute for Nuclear Research

M. Stanoiu

Horia Hulubei National Institute of Physics and Nuclear Engineering

P. Strmen

Comenius University in Bratislava

I. Szarka

Comenius University in Bratislava

M. Takechi

GSI Helmholtz Centre for Heavy Ion Research

Y. K. Tanaka

GSI Helmholtz Centre for Heavy Ion Research

University of Tokyo

H. Weick

GSI Helmholtz Centre for Heavy Ion Research

M. Winkler

GSI Helmholtz Centre for Heavy Ion Research

J. S. Winfield

GSI Helmholtz Centre for Heavy Ion Research

X. D. Xu

Beihang University

Justus Liebig University Giessen

GSI Helmholtz Centre for Heavy Ion Research

Mikhail Zhukov

Chalmers, Physics

Physical Review C

24699985 (ISSN) 24699993 (eISSN)

Vol. 98 6 064308

Subject Categories

Accelerator Physics and Instrumentation

Subatomic Physics

Atom and Molecular Physics and Optics

DOI

10.1103/PhysRevC.98.064308

More information

Latest update

12/21/2018