Decay studies at the end of the rp-process

E. E. Smith, M. E. Howard, B. Mercurio, S. D. Reitzner, A. Estrade, P. T. Hosmer, E. Kwan, S. N. Liddick, P. F. Mantica, F. Montes, A. C. Morton, H. Schatz, A. Stolz, B. E. Tomlin

Research output: Contribution to journalConference articlepeer-review


The rapid proton-capture process (rp-process) produces proton rich nuclei on the surface of accreting neutron stars. The light curves of type I X-ray bursts are an observable result of the energy produced. In reaction networks, a series of (p, γ) reactions and β-decays proceed along a path close to the proton drip-line culminating, for some bursts, in a Sn-Sb-Te cycle. To address uncertainties in the masses near the proton drip-line, we have observed the β-decay of neutron-deficient 103,104,105Sb isotopes at the National Superconducting Cyclotron Laboratory at Michigan State University. A mixed beam of unstable nuclei was produced at the Coupled Cyclotron Facility and isolated in the A1900 fragment separator. Nuclei were then implanted and decays were observed in the NSCL β-decay end station. We discuss preliminary results on β-decay properties and the search for proton radioactivity.

Original languageEnglish
JournalProceedings of Science
StatePublished - 2006
Event9th International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos, NIC 2006 - Geneva, Switzerland
Duration: Jun 25 2006Jun 30 2006


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