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NSR database version of April 27, 2024.

Search: Author = R.C.Powel

Found 7 matches.

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2023DO09      Phys.Rev. A 108, 052816 (2023)

A.Dockery, K.Konig, J.Lantis, Y.Liu, K.Minamisono, S.Pineda, R.Powel

Hyperfine structure of low-lying triplet states in ⁴⁵Sc II

ATOMIC PHYSICS ⁴⁵Sc; measured frequencies; deduced the hyperfine magnetic dipole (A) and the electric quadrupole (B) coupling constants. Collinear laser spectroscopy.

doi: 10.1103/PhysRevA.108.052816
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2023KO19      Phys.Rev.Lett. 131, 102501 (2023)

K.Konig, S.Fritzsche, G.Hagen, J.D.Holt, A.Klose, J.Lantis, Y.Liu, K.Minamisono, T.Miyagi, W.Nazarewicz, T.Papenbrock, S.V.Pineda, R.Powel, P.-G.Reinhard

Surprising Charge-Radius Kink in the Sc Isotopes at N=20

NUCLEAR REACTIONS Be(⁴⁰Ca, X)⁴⁰Sc/⁴¹Sc, E=140 MeV/nucleon; measured frequencies; deduced resonance spectra, charge radii using collinear laser spectroscopy, kink at neutron shell closure. Comparison with available data. The National Superconducting Cyclotron Laboratory.

doi: 10.1103/PhysRevLett.131.102501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022PO01      Phys.Rev. C 105, 034310 (2022)

R.Powel, B.A.Brown, J.D.Holt, A.Klose, K.Konig, J.Lantis, K.Minamisono, T.Miyagi, S.Pineda

Ground state magnetic dipole moment of ⁴⁰Sc

NUCLEAR MOMENTS ^40,41Sc; measured hyperfine structure spectra; deduced hyperfine coupling constants, magnetic dipole moments, electric quadrupole moments. Comparison to shell-model and multishell in-medium similarity renormalization group (IMSRG) calculations. Collinear laser spectroscopy technique at NSCL-BECOLA facility. Scandium beam produced in ⁹Be(⁴⁰Ca, X), E=140 MeV/nucleon reaction, and transported using A1900 fragment separator at NSCL-MSU. Systematics of experimental and theoretical magnetic moments of ground states of ^40,41Sc, ^39,41Ca, ^39,40K.

doi: 10.1103/PhysRevC.105.034310
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022SO14      Phys.Rev.Lett. 129, 132501 (2022)

F.Sommer, K.Konig, D.M.Rossi, N.Everett, D.Garand, R.P.de Groote, J.D.Holt, P.Imgram, A.Incorvati, C.Kalman, A.Klose, J.Lantis, Y.Liu, A.J.Miller, K.Minamisono, T.Miyagi, W.Nazarewicz, W.Nortershauser, S.V.Pineda, R.Powel, P.-G.Reinhard, L.Renth, E.Romero-Romero, R.Roth, A.Schwenk, C.Sumithrarachchi, A.Teigelhofer

Charge Radii of ^{55, 56}Ni Reveal a Surprisingly Similar Behavior at N=28 in Ca and Ni Isotopes

NUCLEAR MOMENTS ^{54,55,56,57,58,59,60}Ni; measured frequencies; deduced Isotope shifts, differential ms charge radii, and absolute rms charge radii. Comparison with nuclear density functional theory (DFT) calculations. National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU) and collinear laser spectroscopy (CLS) at the BECOLA facility.

doi: 10.1103/PhysRevLett.129.132501
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2021KO18      Phys.Rev. C 103, 054305 (2021)

K.Konig, F.Sommer, J.Lantis, K.Minamisono, W.Nortershauser, S.Pineda, R.Powel

Isotope-shift measurements and King-fit analysis in nickel isotopes

ATOMIC PHYSICS ^58,60,62,64Ni; measured isotope-shifts in the 3d⁹4s³D₃ to 3d⁹4p³P₂ atomic transitions between the stable even-even nickel isotopes using BEam COoling and LAser spectroscopy (BECOLA) facility at the NSCL/FRIB (MSU); deduced differential mean-square charge radii using detailed King-fit analysis in extracting mass-shift and field-shift parameters. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.103.054305
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021PI10      Phys.Rev.Lett. 127, 182503 (2021)

S.V.Pineda, K.Konig, D.M.Rossi, B.A.Brown, A.Incorvati, J.Lantis, K.Minamisono, W.Nortershauser, J.Piekarewicz, R.Powel, F.Sommer

Charge Radius of Neutron-Deficient ⁵⁴Ni and Symmetry Energy Constraints Using the Difference in Mirror Pair Charge Radii

NUCLEAR REACTIONS ⁹Be(⁵⁸Ni, ⁵⁴Ni), E not given; measured resonance spectra, frequencies. ⁵⁴Ni; deduced nuclear root-mean-square charge radius. Comparison with available data. BECOLA, National Superconducting Cyclotron Laboratory at Michigan State University.

doi: 10.1103/PhysRevLett.127.182503
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020BR12      Phys. Rev. Res. 2, 022035 (2020)

B.A.Brown, K.Minamisono, J.Piekarewicz, H.Hergert, D.Garand, A.Klose, K.Konig, J.D.Lantis, Y.Liu, B.Maass, A.J.Miller, W.Nortershauser, S.V.Pineda, R.C.Powel, D.M.Rossi, F.Sommer, C.Sumithrarachchi, A.Teigelhofer, J.Watkins, R.Wirth

Implications of the ³⁶Ca-³⁶S and ³⁸Ca-³⁸Ar difference in mirror charge radii on the neutron matter equation of state

NUCLEAR STRUCTURE ³⁶Ca, ³⁶S, ³⁸Ca, ³⁸Ar; analyzed available data; deduced differences in charge radii between mirror nuclei, the slope of the symmetry energy L at the nuclear saturation density. Comparison with theoretical calculations of charge radii, differences and symmetry energy.

doi: 10.1103/PhysRevResearch.2.022035
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Note: The following list of authors and aliases matches the search parameter R.C.Powel: , R.C.POWEL