β -delayed proton decay of Al and nova nucleosynthesis

A. Saastamoinen, L. Trache, A. Banu, M.A. Bentley, T. Davinson, J.C. Hardy, V.E. Iacob, M. McCleskey, B. Roeder, E. Simmons, G. Tabacaru, R.E. Tribble, P.J. Woods, J. Äystö

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We have studied β -decay of Al with a novel detector setup at the focal plane of the MARS separator at the Texas A&M University. Absolute proton-decay branching ratios from excited states of Mg are determined by combining our results to the latest γ-decay data. Contrary to previous β -decay studies, no strong proton intensity from the isobaric analogue state (IAS) in Mg (E = 7803 keV) was observed. Instead, we assign the lowest observed proton group at E = 206 keV to the state 16 keV below the IAS. In this contribution, a description of the used technique along with results of the experiment are given and their relevance for astrophysics discussed.
Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 1 Jan 2010

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