@article{10272/11483,
year = {2015},
url = {http://hdl.handle.net/10272/11483},
abstract = {Previously unknown isotopes Ar30 and Cl29 have been identified by measurement of the trajectories of their in-flight decay products S28+p+p and S28+p, respectively. The analysis of angular correlations of the fragments provided information on decay energies and the structure of the parent states. The ground states of Ar30 and Cl29 were found at 2.25+0.15−0.10 and 1.8±0.1  MeV above the two- and one-proton thresholds, respectively. The lowest states in Ar30 and Cl29 point to a violation of isobaric symmetry in the structure of these unbound nuclei. The two-proton decay has been identified in a transition region between simultaneous two-proton and sequential proton emissions from the Ar30 ground state, which is characterized by an interplay of three-body and two-body decay mechanisms. The first hint of a fine structure of the two-proton decay of Ar∗30(2+) has been obtained by detecting two decay branches into the ground and first-excited states of the S28 fragment.},
organization = {A. G., S. K., S. R., and P. S. were supported by the
Helmholtz Association Grant No. IK-RU-002. L. V. G.
was partly supported by the Ministry of Education and
Science of the Russian Federation Grant No. NSh-
932.2014.2. A. F., A. G., L. V. G., S. K., P. S., and R. S.
were partly supported by the Russian Foundation for
Basic Research Grant No. 14-02-00090-a. This work
was partly supported by the Polish National Science
Center under Contract No. UMO-2011/01/B/ST2/01943.
A. A. C. acknowledges support by the Polish Ministry of
Science and Higher Education by Grant No. 0079/DIA/
2014/43 (Grant Diamentowy). M. P. and X. X. are grateful
for a support from the Helmholtz International Center
for FAIR (HIC for FAIR). Y. L. was supported by the
Helmholtz-CAS Joint Research Group Grant No. HCJRG-
108. J. M. E. acknowledges support from the FPA2009-
08848 contract (MICINN, Spain)},
publisher = {American Physical Society},
title = {Observation and Spectroscopy of New Proton-Unbound Isotopes 30Ar and 29Cl: An Interplay of Prompt Two-Proton and Sequential Decay},
doi = {10.1103/PhysRevLett.115.202501},
author = {Mukha, I and Dueñas Díaz, José Antonio and Marquínez Durán, Gloria and Martel Bravo, Ismael and Ordúz, A. K. and Sánchez Benítez, Ángel Miguel and Zhukov, M. V.},
}