CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Multiparticle emission in the decay of Ar-31

G. T. Koldste ; B. Blank ; M. J. G. Borge ; J. A. Briz ; M. Carmona-Gallardo ; L. M. Fraile ; H. O. U. Fynbo ; J. Giovinazzo ; B. D. Grann ; J. G. Johansen ; A. Jokinen ; Björn Jonson (Institutionen för fundamental fysik) ; T. Kurturkian-Nieto ; J. H. Kusk ; Thomas Nilsson (Institutionen för fundamental fysik) ; A. Perea ; V. Pesudo ; E. Picado ; K. Riisager ; A. Saastamoinen ; O. Tengblad ; J. C. Thomas ; J. Van de Walle
Physical Review C. Nuclear Physics (0556-2813). Vol. 89 (2014), 6,
[Artikel, refereegranskad vetenskaplig]

A multihit capacity setup was used to study the decay of the dripline nucleus Ar-31, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the beta-delayed three-proton decay of Ar-31 is presented for the first time together with a quantitative analysis of the beta-delayed 2p gamma decay. A new method for determination of the spin of low-lying levels in the beta p daughter 30S using proton-proton angular correlations is presented and used to determine that the spin of the 5.2-MeV level is most likely 3(+) with 4(+) also possible. The half-life of Ar-31 is found to be 15.1(3) ms. An improved analysis of the Fermi beta strength including the beta 3p-decay mode gives a total measured branching ratio of 3.60(44)%, which is lower than the theoretical value found to be 4.24(43)%. Finally, a previously unidentified. transition from the isobaric analog state in the decay of Ar-33 has been found.

Denna post skapades 2014-08-13. Senast ändrad 2014-12-05.
CPL Pubid: 201359


Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för fundamental fysik (2005-2015)


Subatomär fysik

Chalmers infrastruktur