D. K. Sharp
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View article: Simultaneous calculation of elastic scattering, transfer, breakup, and other direct cross sections for d+197Au reaction
Simultaneous calculation of elastic scattering, transfer, breakup, and other direct cross sections for d+197Au reaction Open
View article: Two-cluster approach to the properties of one- and two-neutron-halo nuclei
Two-cluster approach to the properties of one- and two-neutron-halo nuclei Open
In this work, we present a new approximate method for obtaining simple wave functions for the ground state of exotic nuclei with a neutron halo. We model the system as a two-cluster structure, treating the core and halo as inert objects. T…
View article: Toward the Discovery of New Elements: Production of Livermorium (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Z</mml:mi><mml:mo>=</mml:mo><mml:mn>116</mml:mn></mml:mrow></mml:math>) with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ti</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>50</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
Toward the Discovery of New Elements: Production of Livermorium () with Open
The ^{244}Pu(^{50}Ti,xn)^{294-x}Lv reaction was investigated at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. The experiment was aimed at the production of a superheavy element with Z≥114 by irradiating an actinide target with…
View article: Towards the Discovery of New Elements: Production of Livermorium (Z=116) with 50Ti
Towards the Discovery of New Elements: Production of Livermorium (Z=116) with 50Ti Open
The $^{244}$Pu($^{50}$Ti,$xn$)$^{294-x}$Lv reaction was investigated at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron facility. The experiment was aimed at the production of a superheavy element with $Z\ge 114$ by irradiating a…
View article: Evolution of the nuclear spin-orbit splitting explored via the 32Si(d,p)33Si reaction using SOLARIS
Evolution of the nuclear spin-orbit splitting explored via the 32Si(d,p)33Si reaction using SOLARIS Open
View article: Evolution of the nuclear spin-orbit splitting explored via the $^{32}$Si($d$,$p$)$^{33}$Si reaction using SOLARIS
Evolution of the nuclear spin-orbit splitting explored via the $^{32}$Si($d$,$p$)$^{33}$Si reaction using SOLARIS Open
The spin-orbit splitting between neutron 1$p$ orbitals at $^{33}$Si has been deduced using the single-neutron-adding ($d$,$p$) reaction in inverse kinematics with a beam of $^{32}$Si, a long-lived radioisotope. Reaction products were analy…
View article: Searching for particle-hole cluster bands in <sup>8</sup>Be using the ISOLDE Solenoidal Spectrometer
Searching for particle-hole cluster bands in <sup>8</sup>Be using the ISOLDE Solenoidal Spectrometer Open
The 7 Be( d , p) 8 Be ∗ reaction was measured in inverse kinematics at a beam energy of 11 MeV/u using the ISOLDE Solenoidal Spectrometer, in order to identify and characterise high-excitation states in 8 Be. The spin-parities of many of t…
View article: Kinematics reconstruction in solenoidal spectrometers operated in active target mode
Kinematics reconstruction in solenoidal spectrometers operated in active target mode Open
View article: Kinematics reconstruction in solenoidal spectrometers operated in active target mode
Kinematics reconstruction in solenoidal spectrometers operated in active target mode Open
We discuss the reconstruction of low-energy nuclear reaction kinematics from charged-particle tracks in solenoidal spectrometers working in Active Target Time Projection Chamber mode. In this operation mode, reaction products are tracked w…
View article: Direct Determination of Fission-Barrier Heights Using Light-Ion Transfer in Inverse Kinematics
Direct Determination of Fission-Barrier Heights Using Light-Ion Transfer in Inverse Kinematics Open
We demonstrate a new technique for obtaining fission data for nuclei away from β stability. These types of data are pertinent to the astrophysical r process, crucial to a complete understanding of the origin of the heavy elements, and for …
View article: Probing the quadrupole transition strength of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">C</mml:mi><mml:mprescripts/><mml:none/><mml:mn>15</mml:mn></mml:mmultiscripts></mml:math> via deuteron inelastic scattering
Probing the quadrupole transition strength of via deuteron inelastic scattering Open
Deuteron elastic scattering from C
View article: Transfer reaction induced fission 238U(d,p-fission) with HELIOS
Transfer reaction induced fission 238U(d,p-fission) with HELIOS Open
Upload includes: Pre-sorted data with built physics events. All experimental data in the files "gen_run###.root" Link to GutHub containing all relevant codes to sort the data and produce physics histograms.
View article: Transfer reaction induced fission 238U(d,p-fission) with HELIOS
Transfer reaction induced fission 238U(d,p-fission) with HELIOS Open
Upload includes: Pre-sorted data with built physics events. All experimental data in the files "gen_run###.root" Link to GutHub containing all relevant codes to sort the data and produce physics histograms.
View article: Quenching of Single-Particle Strength in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>A</mml:mi><mml:mo>=</mml:mo><mml:mn>15</mml:mn></mml:mrow></mml:math> Nuclei
Quenching of Single-Particle Strength in Nuclei Open
Absolute cross sections for the addition of s- and d-wave neutrons to ^{14}C and ^{14}N have been determined simultaneously via the (d,p) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, ΔS, is aroun…
View article: Experimental study of the isomeric state in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">N</mml:mi><mml:mprescripts/><mml:none/><mml:mn>16</mml:mn></mml:mmultiscripts></mml:math> using the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">N</mml:mi><mml:none/><mml:mrow><mml:mi>g</mml:mi><mml:mo>,</mml:mo><mml:mi>m</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mn>16</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>d</mml:mi><mml:mo>,</mml:mo><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts><mml:mo>)</mml:mo></mml:math> reaction
Experimental study of the isomeric state in using the reaction Open
The isomeric state of 16N was studied using the 16Ng,m(d,3He) proton-removal reactions at 11.8 MeV/u in inverse kinematics. The 16N beam, of which 24% was in the isomeric state, was produced using the Argonne Tandem-Linac Accelerator Syste…
View article: Neutron occupancies and single-particle energies across the stable tin isotopes
Neutron occupancies and single-particle energies across the stable tin isotopes Open
The occupancies and vacancies of the valence neutron orbitals across the stable tin isotopic chain from $112\leq A\leq 124$ have been determined. These were inferred from the cross sections of neutron-adding and -removing reactions. In eac…
View article: Evolution of single-particle structure near the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>20</mml:mn></mml:mrow></mml:math> island of inversion
Evolution of single-particle structure near the island of inversion Open
The single-particle properties of $^{29}$Mg have been investigated via a measurement of the $^{28}$Mg(d,p) 29Mg reaction, in inverse kinematics, using the ISOLDE Solenoidal Spectrometer. The negative-parity intruder states from the f p she…
View article: Configuration mixing in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Mg</mml:mi><mml:mprescripts/><mml:none/><mml:mn>28</mml:mn></mml:mmultiscripts></mml:math> and the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Mg</mml:mi><mml:mprescripts/><mml:none/><mml:mn>26</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>t</mml:mi><mml:mo>,</mml:mo><mml:mi>p</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Mg</mml:mi><mml:mprescripts/><mml:none/><mml:mn>28</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> reaction
Configuration mixing in and the reaction Open
We have studied the Mg-26(t, p) (28)mg reaction. The nucleus Mg-28 lies between Mg-24 and Mg-32, the latter of which is central to the "island of inversion" characterized by low-lying neutron fp-shell configurations. The present results sh…
View article: Evolution of single-particle states along ${N=127}$: The ${ d}$($^{212}$Rn,${ p}$)$^{213}$Rn reaction.
Evolution of single-particle states along ${N=127}$: The ${ d}$($^{212}$Rn,${ p}$)$^{213}$Rn reaction. Open
View article: Neutron-hole strength in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>81</mml:mn></mml:mrow></mml:math> nuclei
Neutron-hole strength in nuclei Open
A systematic study of neutron-hole strength in the N = 81 nuclei 137Ba,\n139Ce, 141Nd and 143Sm is reported. The single-neutron removal reactions (p,d)\nand (3He,4He) were measured at energies of 23 and 34 MeV, respectively.\nSpectroscopic…
View article: First Exploration of Neutron Shell Structure below Lead and beyond <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>126</mml:mn></mml:math>
First Exploration of Neutron Shell Structure below Lead and beyond Open
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical r process in producing nuclei heavier than A∼190. Despite their importance, the structure and properties of these nuclei remain expe…
View article: Pairing properties of the double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> emitter <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>116</mml:mn></mml:mmultiscripts></mml:math>
Pairing properties of the double- emitter Open
The pairing properties of the neutrinoless double-β decay candidate 116Cd
have been investigated. Measurements of the two-neutron removal reactions on isotopes of 114,116Cd have been made in order to identify 0+ strength in the residua…
have been investigated. Measurements of the two-neutron removal reactions on isotopes of 114,116Cd have been made in order to identify 0+ strength in the residua…
View article: Structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Fe</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>70</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>: Single-particle and collective degrees of freedom
Structure of : Single-particle and collective degrees of freedom Open
Excited states in the neutron-rich \\nuc{70}{Fe} nucleus were populated in a\none-proton removal reaction from \\nuc{71}{Co} projectiles at 87~MeV/nucleon. A\nnew transition was observed with the $\\gamma$-ray tracking array GRETINA and\ns…
View article: Experimental study of the rearrangements of valence protons and neutrons amongst single-particle orbits during double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Mo</mml:mi><mml:mprescripts/><mml:none/><mml:mn>100</mml:mn></mml:mmultiscripts></mml:math>
Experimental study of the rearrangements of valence protons and neutrons amongst single-particle orbits during double- decay in Open
The rearrangements of protons and neutrons amongst the valence single-particle orbitals during double-β decay of Mo100 have been determined by measuring cross sections in (d,p), (p,d), (He3,α), and (He3,d) reactions on Mo98,100 and Ru100,1…
View article: Rearrangement of valence neutrons in the neutrinoless double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math> decay of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Xe</mml:mi><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts></mml:math>
Rearrangement of valence neutrons in the neutrinoless double- decay of Open
Here, a quantitative description of the change in ground-state neutron occupancies between 136Xe and 136Ba, the initial and final state in the neutrinoless double-β decay of 136Xe, has been extracted from p…
View article: Change of nuclear configurations in the neutrinoless double-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>decay of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mtext>Te</mml:mtext><mml:mprescripts/><mml:none/><mml:mn>130</mml:mn></mml:mmultiscripts><mml:mo>→</mml:mo><mml:mmultiscripts><mml:mtext>Xe</mml:mtext><mml:mprescripts/><mml:none/><mml:mn>130</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mtext>Xe</mml:mtext><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts><mml:mo>→</mml:mo><mml:mmultiscripts><mml:mtext>Ba</mml:mtext><mml:mprescripts/><mml:none/><mml:mn>136</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>
Change of nuclear configurations in the neutrinoless double-decay ofand Open
The change in the configuration of valence protons between the initial and\nfinal states in the neutrinoless double-$\\beta$ decay of $^{130}$Te\n$\\rightarrow$ $^{130}$Xe and of $^{136}$Xe $\\rightarrow$ $^{136}$Ba has been\ndetermined by…
View article: Single-particle behaviour towards the ``island of inversion" - $^{28,30}$Mg($d$,$p$)$^{29,31}$Mg in inverse kinematics
Single-particle behaviour towards the ``island of inversion" - $^{28,30}$Mg($d$,$p$)$^{29,31}$Mg in inverse kinematics Open