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NSR database version of May 24, 2024.

Search: Author = R.Beerwerth

Found 11 matches.

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2021KO26      Phys.Lett. B 819, 136439 (2021)

A.Koszorus, L.J.Vormawah, R.Beerwerth, M.L.Bissell, P.Campbell, B.Cheal, C.S.Devlin, T.Eronen, S.Fritzsche, S.Geldhof, H.Heylen, J.D.Holt, A.Jokinen, S.Kelly, I.D.Moore, T.Miyagi, S.Rinta-Antila, A.Voss, C.Wraith

Proton-neutron pairing correlations in the self-conjugate nucleus 42Sc

NUCLEAR MOMENTS 42,43,44,45,46Sc; measured frequencies; deduced hyperfine spectrum, magnetic dipole, electric quadrupole parameters, rms radii. Comparison with the shell-model and IMSRG calculations.

doi: 10.1016/j.physletb.2021.136439
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020KR09      Phys.Rev. C 102, 034307 (2020)

T.Kron, R.Beerwerth, S.Raeder, S.Fritzsche, R.Heinke, P.Schonberg, M.Trumper, K.Wendt

Hyperfine structure study of 97, 98, 99Tc in a new laser ion source for high-resolution laser spectroscopy

NUCLEAR MOMENTS 97,98,99Tc; measured hyperfine structure spectra of three different atomic transitions in Tc using resonance ionization spectroscopy (RIS) and efficient laser spectroscopy at the RISIKO mass separator Mainz university; deduced hyperfine structure coupling constants, μ, Q of ground states of 97Tc and 98Tc, isotope shifts, differences in charge radii based on calculated mass- and field-shift parameters using atomic MCDHF calculations. Comparison with previous experimental results. Systematics of g factors, magnetic dipole moments and electric quadrupole moments for Z=43, A=93-99 isotopes, charge radii for Z=39, N=47-63, Z=40, N=47-62, Z=41, N=49-62, Z=42, N=48-64, Z=43, N=54-56, Z=44, N=52-64, Z=46, N=56-64, and Z=47, N=54-62.

doi: 10.1103/PhysRevC.102.034307
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2018MU12      Phys.Rev. A 98, 020503 (2018)

R.A.Muller, A.V.Maiorova, S.Fritzsche, A.V.Volotka, R.Beerwerth, P.Glowacki, J.Thielking, D.-M.Meier, M.Okhapkin, E.Peik, A.Surzhykov

Hyperfine interaction with the 229Th nucleus and its low-lying isomeric state

RADIOACTIVITY 229Th(IT); measured frequencies; deduced hyperfine spectra, magnetic dipole and electric quadrupole hyperfine constants. Comparison with theoretical calculations.

doi: 10.1103/PhysRevA.98.020503
Citations: PlumX Metrics


2018RA11      Phys.Rev.Lett. 120, 232503 (2018)

S.Raeder, D.Ackermann, H.Backe, R.Beerwerth, J.C.Berengut, M.Block, A.Borschevsky, B.Cheal, P.Chhetri, Ch.E.Dullmann, V.A.Dzuba, E.Eliav, J.Even, R.Ferrer, V.V.Flambaum, S.Fritzsche, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Huyse, U.Kaldor, O.Kaleja, J.Khuyagbaatar, P.Kunz, M.Laatiaoui, F.Lautenschlager, W.Lauth, A.K.Mistry, E.Minaya Ramirez, W.Nazarewicz, S.G.Porsev, M.S.Safronova, U.I.Safronova, B.Schuetrumpf, P.Van Duppen, T.Walther, C.Wraith, A.Yakushev

Probing Sizes and Shapes of Nobelium Isotopes by Laser Spectroscopy

NUCLEAR MOMENTS 252,253,254No; measured excitation spectra, hyperfine structure components; deduced nuclear magnetic and quadrupole moments, charge radii. Comparison with the state-of-the-art nuclear density functional calculations.

doi: 10.1103/PhysRevLett.120.232503
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2017AN09      Phys.Rev. A 96, 012505 (2017)

J.Andersson, R.Beerwerth, A.Hult Roos, R.J.Squibb, R.Singh, S.Zagorodskikh, O.Talaee, D.Koulentianos, J.H.D.Eland, S.Fritzsche, R.Feifel

Auger decay of 4d inner-shell holes in atomic Hg leading to triple ionization

NUCLEAR REACTIONS Hg(γ, X), E=730 eV; measured reaction products, Eβ, Iβ; deduced formation of triply ionized states upon the creation of 4d inner-shell holes in atomic Hg. Comparison with multiconfiguration Dirac-Fock calculations.

doi: 10.1103/PhysRevA.96.012505
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2017FE10      Nat. Commun. 8, 14520 (2017), See 2016FE11

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martínez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced hfs spectra, magnetic dipole and electric quadrupole moments. In-gas laser ionization and spectroscopy (IGLIS) technique.

doi: 10.1038/ncomms14520
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2017GR18      Phys.Rev. C 96, 054331 (2017)

C.Granados, P.Creemers, R.Ferrer, L.P.Gaffney, W.Gins, R.de Groote, M.Huyse, Yu.Kudryavtsev, Y.Martinez, S.Raeder, S.Sels, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wrzosek-Lipska, A.Zadvornaya, A.E.Barzakh, B.Bastin, P.Delahaye, L.Hijazi, N.Lecesne, F.Luton, J.Piot, H.Savajols, J.-C.Thomas, E.Traykov, R.Beerwerth, S.Fritzsche, M.Block, X.Flechard, S.Franchoo, L.Ghys, H.Grawe, R.Heinke, T.Kron, P.Naubereit, K.Wendt, M.Laatiaoui, I.Moore, V.Sonnenschein, M.Loiselet, E.Mogilevskiy, S.Rothe

In-gas laser ionization and spectroscopy of actinium isotopes near the N=126 closed shell

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured optical hyperfine spectra by the in-gas laser ionization and spectroscopy (IGLIS) technique at the LISOL facility of Cyclotron Research Centre, Louvain-la-Neuve; deduced g factors, quadrupole moments and spins of the ground states, configurations. Comparison with large-scale nuclear-shell-model calculations. 212,213Ac produced in 197Au(20Ne, 5n), (20Ne, 4n), E=145 MeV. 214,215Ac produced in 197Au(22Ne, 5n), (22Ne, 4n), E=143 MeV.

RADIOACTIVITY 215Ac(α)[from 197Au(22Ne, 4n), E=143 MeV; measured Eα.

doi: 10.1103/PhysRevC.96.054331
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2017MI19      Phys.Rev. C 96, 054314 (2017)

A.J.Miller, K.Minamisono, D.M.Rossi, R.Beerwerth, B.A.Brown, S.Fritzsche, D.Garand, A.Klose, Y.Liu, B.Maass, P.F.Mantica, P.Muller, W.Nortershauser, M.R.Pearson, C.Sumithrarachchi

First determination of ground state electromagnetic moments of 53Fe

NUCLEAR MOMENTS 53Fe; measured hyperfine spectrum using bunched-beam collinear laser spectroscopy at the BECOLA facility at NSCL-MSU; deduced magnetic dipole moment, and electric quadrupole moment. Radioactive ion beam of 53Fe produced in 9Be(58Ni, X), E=160 MeV/nucleon, followed by fragment separation using A1900 separator. 53Co; deduced magnetic dipole moment from mirror magnetic moment systematics. Calculated electric field gradient using multiconfiguration Dirac-Fock (MCDF) method to deduce quadrupole moment. Comparison with shell-model calculations using the GXPF1A effective interaction in a full fp shell model space.

doi: 10.1103/PhysRevC.96.054314
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2016FE11      Nat. Commun. 8, 14520 (2016), See 2017FE10

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martinez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced nuclear magnetic moments, electric quadrupole moments, radii. Comparison with theoretical calculations, experimental data.

doi: 10.1038/ncomms14520
Citations: PlumX Metrics


2016HE14      Phys.Rev. C 94, 054321 (2016)

H.Heylen, C.Babcock, R.Beerwerth, J.Billowes, M.L.Bissell, K.Blaum, J.Bonnard, P.Campbell, B.Cheal, T.Day Goodacre, D.Fedorov, S.Fritzsche, R.F.Garcia Ruiz, W.Geithner, Ch.Geppert, W.Gins, L.K.Grob, M.Kowalska, K.Kreim, S.M.Lenzi, I.D.Moore, B.Maass, S.Malbrunot-Ettenauer, B.Marsh, R.Neugart, G.Neyens, W.Nortershauser, T.Otsuka, J.Papuga, R.Rossel, S.Rothe, R.Sanchez, Y.Tsunoda, C.Wraith, L.Xie, X.F.Yang, D.T.Yordanov

Changes in nuclear structure along the Mn isotopic chain studied via charge radii

ATOMIC PHYSICS 51,53,54,55,56,57,58,59,60,61,62,63,64Mn; measured hyperfine spectra using collinear laser spectroscopy at ISOLDE-CERN; deduced charge radii. Isotopes produced in bombardment of uranium carbide target with 1.4-GeV proton beam. Mass and field shift factors calculated in multiconfiguration Dirac-Fock framework and combined with King plot analysis. Comparison with Duflo-Zuker formula.

NUCLEAR STRUCTURE 53,55,57,59,61,63,65Mn; calculated potential energy surfaces using Monte Carlo shell-model. Systematics of S(2n) values for Z=20-28, N=24-46 nuclei.

doi: 10.1103/PhysRevC.94.054321
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2016MI27      Phys.Rev.Lett. 117, 252501 (2016)

K.Minamisono, D.M.Rossi, R.Beerwerth, S.Fritzsche, D.Garand, A.Klose, Y.Liu, B.Maass, P.F.Mantica, A.J.Miller, P.Muller, W.Nazarewicz, W.Nortershauser, E.Olsen, M.R.Pearson, P.-G.Reinhard, E.E.Saperstein, C.Sumithrarachchi, S.V.Tolokonnikov

Charge Radii of Neutron Deficient 52, 53Fe Produced by Projectile Fragmentation

NUCLEAR MOMENTS 52,53,56Fe; measured hyperfine spectra; deduced differential mean-square charge radii. Bunched-beam collinear laser spectroscopy, comparison with the nuclear density functional theory with Fayans and Skyrme energy density functionals calculations.

doi: 10.1103/PhysRevLett.117.252501
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