Penning trap mass measurements ofCd<mml:mprescripts/><mml:none/>99−109with the ISOLTRAP mass spectrometer, and implications for therpprocess

2009/08/18 by M. Breitenfeldt, G. Audi, D. Beck +14
Physics and Astronomy · #Astronomical and nuclear sciences #Nuclear Physics and Applications #Nuclear physics research studies #nucl-ex

paper · pdf · doi:10.1103/physrevc.80.035805

published as Phys.Rev.C80:035805,2009 · 14 pages, 9 figures

arxiv created 2009/08/18 · openalex publication_date 2009/09/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

Penning trap mass measurements of neutron-deficient Cd isotopes ^99\ensuremath-109Cd have been performed with the ISOLTRAP mass spectrometer at ISOLDE/CERN, all with relative mass uncertainties below 3\ifmmode⋅\else\textperiodcentered\fi10^\ensuremath-8. A new mass evaluation has been performed. The mass of ⁹⁹Cd has been determined for the first time, which extends the region of accurately known mass values toward the doubly magic nucleus ¹⁰⁰Sn. The implication of the results on the reaction path of the rp process in stellar x-ray bursts is discussed. In particular, the uncertainty of the abundance and the overproduction created by the rp-process for the mass A=99 are demonstrated by reducing the uncertainty of the proton-separation energy of ¹⁰⁰InS_p(¹⁰⁰In) by a factor of 2.5.

Citations

• Mass Measurements beyond the Majorr-Process Waiting PointZn<mml:mprescripts/><mml:none/>80
• Explosive hydrogen burning
• rp-process nucleosynthesis at extreme temperature and density conditions