P. C. Bender
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View article: A \(\beta \)-decay Study of the Low-spin Structure of \(^{98}\)Zr
A \(\beta \)-decay Study of the Low-spin Structure of \(^{98}\)Zr Open
A high-statistics \(\beta \)-decay experiment was conducted at the TRIUMF-ISAC facility using the \(8\pi \) \(\gamma \)-ray spectrometer and its ancillary detectors to study the low-spin structure of \(^{98}\)Zr. The analysis of \(\gamma \…
View article: Exploring $β$ decay and $β$-delayed neutron emission in exotic $^{46,47}$Cl isotopes
Exploring $β$ decay and $β$-delayed neutron emission in exotic $^{46,47}$Cl isotopes Open
In this paper, $β^-$ and $β$-delayed neutron decays of $^{46,47}$Cl are reported from an experiment carried out at the National Superconducting Cyclotron Laboratory using the Beta Counting System. The half-lives of both $^{46}$Cl and $^{47…
View article: Unveiling New States in <sup>98</sup>Zr: Insights from <i>β</i>-decay and <i>γ-γ</i> Angular-Correlation Studies
Unveiling New States in <sup>98</sup>Zr: Insights from <i>β</i>-decay and <i>γ-γ</i> Angular-Correlation Studies Open
The nuclear structure of the 98 Zr nucleus was studied through the β − decay of 98 Y g.s. at the TRIUMF-ISAC facility. The use of the 8π γ-ray spectrometer with its ancillary detectors SCEPTAR and PACES enabled γ-γ and γ-e − coincidence me…
View article: Low spin spectroscopy of neutron-rich 43,44,45Cl via β and (β}n decay
Low spin spectroscopy of neutron-rich 43,44,45Cl via β and (β}n decay Open
β decay of neutron-rich isotopes 43,45 S,studied at the National Superconducting Cyclotron Laboratory is reported here. β delayed γ transitions were detected by an array of 16 clover detectors surrounding the Beta Counting Station which co…
View article: Experimental Study of the $^{\textbf{38}}$S Excited Level Scheme
Experimental Study of the $^{\textbf{38}}$S Excited Level Scheme Open
Information on the $^{38}$S level scheme was expanded through experimental work utilizing a fusion-evaporation reaction and in-beam $γ$-ray spectroscopy. Prompt $γ$-ray transitions were detected by the Gamma-Ray Energy Tracking Array (GRET…
View article: $β^-$ decay of neutron-rich $^{45}$Cl at magic number N=28
$β^-$ decay of neutron-rich $^{45}$Cl at magic number N=28 Open
Results from the study of $β^-$-decay of $^{45}$Cl, produced in the fragmentation of a 140-MeV/u $^{48}$Ca beam, are presented. The half-life for $^{45}$Cl $β$-decay is measured to be 513(36) ms. The $β^-$ and $β^- 1n$ decay of $^{45}$Cl p…
View article: The Core of $^{25}$F studied by the $^{25}$F(-1p)$^{24}$O reaction
The Core of $^{25}$F studied by the $^{25}$F(-1p)$^{24}$O reaction Open
The $^{25}$F($5/2^+) (-1p) ^{24}$O reaction was studied at the NSCL using the S800 spectrometer. The experimental spectroscopic factor for the ground-state to ground-state transition indicates a substantial depletion of the proton $d_{5/2}…
View article: Exploiting Isospin Symmetry to Study the Role of Isomers in Stellar Environments
Exploiting Isospin Symmetry to Study the Role of Isomers in Stellar Environments Open
Proton capture on the excited isomeric state of ^{26}Al strongly influences the abundance of ^{26}Mg ejected in explosive astronomical events and, as such, plays a critical role in determining the initial content of radiogenic ^{26}Al in p…
View article: Spectroscopy of proton-rich 79Zr: Mirror energy differences in the highly-deformed fpg shell
Spectroscopy of proton-rich 79Zr: Mirror energy differences in the highly-deformed fpg shell Open
Energy differences between isobaric analogue states have been extracted for the A = 79, 79Zr/79Y mirror pair following their population via nucleon-knockout reactions from intermediate-energy rare-isotope beams. These are the heaviest nucl…
View article: Single-particle structure in neutron-rich Sr isotopes approaching the N = 60 shape transition
Single-particle structure in neutron-rich Sr isotopes approaching the N = 60 shape transition Open
Background: Neutron-rich nuclei around neutron number N = 60 show a dramatic shape transition from spherical ground states to prolate deformation in 98Sr and heavier nuclei. Purpose: The purpose of this study is to investigate the single-p…
View article: Single-Particle Structure of Neutron-Rich Sr Isotopes Via d( 94,95,96 Sr, p) Reactions
Single-Particle Structure of Neutron-Rich Sr Isotopes Via d( 94,95,96 Sr, p) Reactions Open
The region around neutron number N = 60 in the neutron-rich Sr and Zr nuclei is one of the most dramatic examples of a ground state shape transition from (near) spherical below N = 60 to strongly deformed shapes in the heavier isotopes. Th…
View article: Triaxiality in selenium-76
Triaxiality in selenium-76 Open
Background: Selenium and germanium nuclei are associated with both triaxiality and shape coexistence. The relative influence of these deformation effects on the low-lying nuclear structure remains the subject of much discussion with additi…
View article: Localizing the Shape Transition in Neutron-Deficient Selenium
Localizing the Shape Transition in Neutron-Deficient Selenium Open
Neutron-deficient selenium isotopes are thought to undergo a rapid shape change from a prolate deformation near the line of beta stability towards oblate deformation around the line of N=Z. The point at which this shape change occurs is un…
View article: Inverse-kinematics proton scattering from $^{41}$P
Inverse-kinematics proton scattering from $^{41}$P Open
We have measured the gamma-ray spectrum of P41 using proton scattering in inverse kinematics with the NSCL/Ursinus College liquid hydrogen target and the GRETINA gamma-ray tracking array. We present preliminary results, including gamma-ray…
View article: Inverse-kinematics proton scattering from 43 P
Inverse-kinematics proton scattering from 43 P Open
Following an experiment at the National Superconducting Cyclotron Laboratory at Michigan State University in October 2016, we study the excited states of the neutron-rich isotope 43P via inverse-kinematic proton scattering with the GRETINA…
View article: High-precision Half-life And Branching Ratio Measurements For Superallowed β+ Emitters At TRIUMF-ISAC
High-precision Half-life And Branching Ratio Measurements For Superallowed β+ Emitters At TRIUMF-ISAC Open
High precision measurements of the ft values for superallowed Fermi β transitions between J π = 0 + isobaric analogue states allow for stringent tests of the electroweak interaction described by the Standard Model. These transitions provid…