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High-precision mass measurement ofS31with the double Penning trap JYFLTRAP improves the mass value forClKankainen1, Eronen2, Gorelov3 et al. 2010Phys. Rev. C531220View full textAdd to dashboardCite

“…However, the error-weighted quadratic fit fails in all data sets. The smallest χ 2 /n value is obtained with the 32 Si value from the Avogadro project [37] and the 32 P from Refs. [18,38,39] (data set E).…”

“…There is a huge deviation of 3.2(3) keV(10.6σ ) in the ME of 32 Si, which depends on whether it is taken from the 28 Si ground-state mass [18] and the precisely measured neutron separation energies (S n ) of [29][30][31][32] Si [1], or from the mass measurement performed at the Low Energy Beam and Ion Trap (LEBIT) [34]. The mass value given in the Avogadro project [37] is also based on (n,γ ) values of the silicon Table I. The corresponding data sets are given in Table I, and obtained χ 2 /n values are given in Table II. isotopes, but there, a much larger error is given without any further comments on possible systematic error.…”

Mass of astrophysically relevantCl31and the breakdown of the isobaric multiplet mass equation

“…The mass of 31 Si is linked via (n,γ ) measurements (see, e.g., Refs. [44][45][46][47]) to 29 Si, which has been precisely measured with a Penning trap at the Massachusetts Institute of Technology [48]. The excitation energy for the T = 3/2 IAS in 31 S is based on data from beta-delayed γ rays of 31 Cl [1,5] as well as from 31 P( 3 He,t) [49] and 33 S(p,t) reactions [50].…”

Cluster calibration in mass spectrometry: laser desorption/ionization studies of atomic clusters and an application in precision mass spectrometry

“…In nuclear physics high-precision atomic mass measurements convey direct information on nuclear binding energies and allow, therefore, the observation of nuclear-structure effects such as shell closures and deformation [3]. In metrology accurate mass measurements are essential for a new definition of the kilogram on a microscopic basis [4]. The required accuracy of the measurements ranges from 10 -5 for molecular identification to 10 -8 and better for new definitions of fundamental constants.…”