# β decay of Cd127 and excited states in In127

Published on Apr 19, 2019in Physical Review C3.132
· DOI :10.1103/physrevc.99.044310
Ch. Lorenz2
Estimated H-index: 2
,
Luis Sarmiento11
Estimated H-index: 11
+ 19 AuthorsM. Vilen3
Estimated H-index: 3
Abstract
• References (52)
• Citations (0)
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References52
#1D. A. Nesterenko (University of Jyväskylä)H-Index: 7
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The Phase-Imaging Ion-Cyclotron-Resonance (PI-ICR) technique has been commissioned at the JYFLTRAP double Penning trap mass spectrometer. This technique is based on projecting the ion motion in the Penning trap onto a position-sensitive multichannel-plate ion detector. Mass measurements of stable 85 Rb $$^{+}$$ and 87 Rb $$^{+}$$ ions with well-known mass values show that relative uncertainties $$\Delta m/m \leq 7\cdot 10^{-10}$$ are possible to reach with the PI-ICR technique at JYFLTRAP. Th...
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We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N=82closed neutron shell and are important to nuclear structure as they lie near doubly-magic ^{132}n on the chart of nuclides. Of particular note is the clear identification of the ground state mass in ^{127}d along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is...
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A new high-spin isomer in the neutron-rich nucleus 128Cd was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T1/2=6.3(8) ms was measured for the new state which was tentatively assigned a spin/parity of (15−). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus 129Cd. In the present experiment no evidence was found for...
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This paper is the second part of the new evaluation of atomic masses, AME2016. Using least-squares adjustments to all evaluated and accepted experimental data, described in Part I, we derive tables with numerical values and graphs to replace those given in AME2012. The first table lists the recommended atomic mass values and their uncertainties. It is followed by a table of the influences of data on primary nuclides, a table of various reaction and decay energies, and finally, a series of graphs...
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Nuclear masses play a fundamental role in understanding how the heaviest elements in the Universe are created in the r process. We predict r-process nucleosynthesis yields using neutron capture and photodissociation rates that are based on the nuclear density functional theory. Using six Skyrme energy density functionals based on different optimization protocols, we determine for the first time systematic uncertainty bands-related to mass modeling-for r-process abundances in realistic astrophysi...
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Background: r-process nucleosynthesis models rely, by necessity, on nuclear structure models for input. Particularly important are β-decay half-lives of neutron-rich nuclei. At present only a single systematic calculation exists that provides values for all relevant nuclei making it difficult to test the sensitivity of nucleosynthesis models to this input. Additionally, even though there are indications that their contribution may be significant, the impact of first-forbidden transitions on deca...
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Prompt γ rays of isotopically identified neutron-rich isotopes of Cd, produced in transfer- and fusion-fission induced by the 238U beam at 6.2 MeV/u on a 9Be target, were measured using the EXOGAM γ -ray detector array and the magnetic spectrometer VAMOS++. New results for the level scheme of 121,123Cd, extending to relatively large angular momentum are reported. The energy levels above 2-MeV excitation energy, are found to differ from those observed in lighter isotopes of Cd indicating a change...
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The astrophysical rapid neutron capture process or ‘ r r process’ of nucleosynthesis is believed to be responsible for the production of approximately half the heavy element abundances found in nature. This multifaceted problem remains one of the greatest open challenges in all of physics. Knowledge of nuclear physics properties such as masses, β β -decay and neutron capture rates, as well as β β -delayed neutron emission probabilities are critical inputs that go into calculations of r r -proces...
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The β -decay half-lives of 110 neutron-rich isotopes of the elements from Rb 37 to Sn 50 were measured at the Radioactive Isotope Beam Factory. The 40 new half-lives follow robust systematics and highlight the persistence of shell effects. The new data have direct implications for r -process calculations and reinforce the notion that the second (A≈130 ) and the rare-earth-element (A≈160 ) abundance peaks may result from the freeze-out of an (n,γ)⇌(γ,n) equilibrium. In such an equilibrium, the ne...
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