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RESEARCH PRODUCT
Mass Measurement on therp-Process Waiting PointKr72
Markku OinonenAri JokinenFrank HerfurthH. J. KlugeGeorg BollenDaniel RodríguezGeorges AudiVeli KolhinenAlban KellerbauerJ. ÄYstöKlaus BlaumKlaus BlaumE. SauvanStefan SchwarzHendrik SchatzD. Becksubject
PhysicsLarge Hadron Collider010308 nuclear & particles physicsCyclotronGeneral Physics and Astronomyrp-processMass spectrometryPenning trap01 natural sciencesISOLTRAPlaw.inventionNuclear physicsNucleosynthesislaw0103 physical sciencesPoint (geometry)010306 general physicsdescription
With the aim of improving nucleosynthesis calculations, we performed for the first time, a direct high-precision mass measurement on the waiting point in the astrophysical rp-process 72Kr. We used the ISOLTRAP Penning trap mass spectrometer located at ISOLDE/CERN. The measurement yielded a relative mass uncertainty of δm/m = 1.2×10-7. In addition, the masses of 73Kr and 74Kr were measured directly with relative mass uncertainties of 1.0×10-7 and 3×10-8, respectively. We analyzed the role of 72Kr in the rp-process during X-ray bursts using the ISOLTRAP and previous mass values of 72-74Kr.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-10-14 | Physical Review Letters |