Isomeric states close to doubly magic ${}^{132}$Sn studied with JYFLTRAP

Abstract

The double Penning trap mass spectrometer JYFLTRAP has been employed to measure masses and excitation energies for $11/2^{-}$ isomers in ${}^{121}$Cd, ${}^{123}$Cd, ${}^{125}$Cd and ${}^{133}$Te, for $1/2^{-}$ isomers in ${}^{129}$In and ${}^{131}$In, and for $7^{-}$ isomers in ${}^{130}$Sn and ${}^{134}$Sb. These first direct mass measurements of the Cd and In isomers reveal deviations to the excitation energies based on results from beta-decay experiments and yield new information on neutron- and proton-hole states close to ${}^{132}$Sn. A new excitation energy of 144(4) keV has been determined for ${}^{123}$Cd${}^m$. A good agreement with the precisely known excitation energies of ${}^{121}$Cd${}^m$, ${}^{130}$Sn${}^m$, and ${}^{134}$Sb${}^m$ has been found.

10 pages, 6 figures, submitted to Phys. Rev. C

References in corpus (9)

• The r-process of stellar nucleosynthesis: Astrophysics and nuclear physics achievements and mysteries
• Shell-model calculations and realistic effective interactions
• The Ramsey method in high-precision mass spectrometry with Penning traps: Experimental results
• Dynamical r-process studies within the neutrino-driven wind scenario and its sensitivity to the nuclear physics input
• A sextupole ion beam guide to improve the efficiency and beam quality at IGISOL
• Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP
• Sensitivity of the r-process to nuclear masses
• Proton-neutron multiplets in exotic 134Sb: testing the shell-model effective interaction
• Long standing problem of 210Bi and the realistic neutron-proton effective interaction

Cited by in corpus (17)

• r-Process Nucleosynthesis: Connecting Rare-Isotope Beam Facilities with the Cosmos
• High-resolution, accurate MR-TOF-MS for short-lived, exotic nuclei of few events in their ground and low-lying isomeric states
• Propagation of Statistical Uncertainties of Skyrme Mass Models to Simulations of $r$-Process Nucleosynthesis
• Following nuclei through nucleosynthesis: a novel tracing technique
• Isomerism in the "south-east" of ${}^{132}$Sn and a predicted neutron-decaying isomer in ${}^{129}$Pd
• Precision mass measurements of ${}^{125-127}$Cd isotopes and isomers approaching the $N=82$ closed shell
• Novel Penning-trap techniques reveal isomeric states in ${}^{128}$In and ${}^{130}$In for the first time
• High-precision Penning-trap mass measurements of Cd and In isotopes at JYFLTRAP remove the fluctuations in the two-neutron separation energies
• High-precision measurements of low-lying isomeric states in ${}^{120-124}$In with JYFLTRAP double Penning trap
• Improvements to TITAN's Mass Measurement and Decay Spectroscopy Capabilities
• Coulomb displacement energies as a probe for nucleon pairing in the $f_{7/2}$ shell
• Precise Mass Measurements of $A=133$ Isobars with the Canadian Penning Trap: Resolving the $Q_{{\beta }^{-}}$ anomaly at ${}^{133}$Te
• Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL
• Decay Spectroscopy of ${}^{129}$Cd
• Binding energies, charge radii, spins and moments: odd-odd Ag isotopes and discovery of a new isomer
• Modification of single-hole-like states by configuration mixing in the ${}^{99-131}$In
• Exploration for Astromers near ${}^{132}$Sn with the Canadian Penning Trap