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NSR database version of May 24, 2024.

Search: Author = S.Fritzsche

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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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2023WU08      New Journal of Physics 25, 093039 (2023)

Z.W.Wu, Z.Q.Tian, C.Z.Dong, A.Surzhykov, S.Fritzsche

Hyperfine-induced effects on Kα1 linear polarization following electron-impact excitation of heliumlike Tl79+ ions with nuclear spin I=1/2

NUCLEAR MOMENTS 207Tl; calculated linear polarization of characteristic lines following electron-impact excitation of atoms or ions with arbitrary nuclear spin using the multi-configurational Dirac-Fock method and relativistic distorted-wave theory.

doi: 10.1088/1367-2630/acf8e9
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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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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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2019BA22      Phys.Rev. C 99, 054317 (2019)

A.E.Barzakh, J.G.Cubiss, A.N.Andreyev, M.D.Seliverstov, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, P.Van Duppen, Y.Wakabayashi, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in 217, 218, 219At revealed by in-source laser spectroscopy

NUCLEAR MOMENTS 217,218,219At; measured hyperfine structure spectra, isotopic shifts, and hyperfine splitting constants using in-source resonance-ionization technique at CERN-ISOLDE; deduced magnetic dipole and electric quadrupole moments, changes in nuclear mean-square charge radii, octupole collectivity. 217,218,219At isotopes produced in U(p, X), E=1.4 GeV reaction. Systematics of g factors in 209,211,213Bi, 211,217,219At, 213,219,221,223,225Fr, 215,217,227Ac, changes in rms charge radii for 207,208,209,210,211,217,218,219At, shell-effect parameters in Pb, Bi, Po, At, Rn, Fr, Ra, Ac isotopes, and odd-even staggering in 205,207,209,211Pb, 207,209,217Po, 208,210,218At, 210,212,220,222,224,226Fr, 219,221Rn, 221,223,225,227Ra.

doi: 10.1103/PhysRevC.99.054317
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2018CU02      Phys.Rev. C 97, 054327 (2018)

J.G.Cubiss, A.E.Barzakh, M.D.Seliverstov, A.N.Andreyev, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi, P.Van Duppen, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Charge radii and electromagnetic moments of 195-211At

NUCLEAR MOMENTS 195,195m,196,197,197m,198,198m,199,199m,200,200m,201,202,202m,203,204,205,206,207,208,209,210,211At; measured hfs spectra, hyperfine coupling constants, isotope shifts, and rms charge radii using the in-source resonance-ionization spectroscopy method, and Multi-Reflection Time-of-Flight Mass Spectrometer (MR-TOF MS) at CERN-ISOLDE; deduced magnetic dipole moments and spectroscopic quadrupole moments, configurations, and quadrupole deformation parameters. 206At; deduced J. Detailed systematics of magnetic dipole moments, spectroscopic quadrupole moments, deformations, and rms charge radii in Hg, Tl, Pb, Bi, Po, At, Fr, Ra and Ac nuclei. Comparison with theoretical calculations using multiconfiguration Dirac-Hartree-Fock (MCDHF) method.

NUCLEAR REACTIONS U(p, X)195At/195mAt/196At/197At/197mAt/198At/198mAt/199At/199mAt/200At/200m1At/200m2At/201At/202At/202mAt/203At/204At/205At/206At/207At/208At/209At/210At/211At, E=1.4 GeV; produced radioactive astatine isotopes by spallation reaction with beam from CERN PS Booster impinging on a thick UCx target, followed by injection into a hot cavity of the Resonance Ionization Laser Ion Source (RILIS), and ionization by a three-step photoionization scheme.

doi: 10.1103/PhysRevC.97.054327
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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
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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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2017DE24      Can.J.Phys. 95, 858 (2017)

J.Deprince, S.Fritzsche, T.R.Kallman, P.Palmeri, P.Quinet

Influence of plasma environment on K-line emission in highly ionized iron atoms evaluated using a Debye-Huckel model

ATOMIC PHYSICS Fe; calculated Ne-, Na-, Ar-, K-like Fe ions; calculated atomic properties, atomic spectra, X-ray spectra, inner shell excitation and ionization, transitional energies, transitional probabilities using ab-initio calculations in the framework of relativistic multiconfiguration Dirac-Fock computation with time-averaged DEbye-Hueckel potential with inclusion of plasma screening effects of ionization potentials; deduced atomic parameters using.

doi: 10.1139/cjp-2016-0667
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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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2016BE20      Phys.Rev. C 94, 014611 (2016)

B.Bergmann, T.Michel, A.Surzhykov, S.Fritzsche

Angular correlation function of the hypersatellite-satellite x-ray cascade following K-shell electron capture of 55Fe

RADIOACTIVITY 55Fe(EC); measured K-x-ray coincidences, hypersatellite-satellite two-photon angular correlation function; deduced double K-vacancy creation probability, effective anisotropy parameter. Comparison with previous results, and with Multi-Configuration-Dirac-Fock (MCDF) calculations.

doi: 10.1103/PhysRevC.94.014611
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2016BI08      Phys.Rev. C 93, 064318 (2016)

M.L.Bissell, T.Carette, K.T.Flanagan, P.Vingerhoets, J.Billowes, K.Blaum, B.Cheal, S.Fritzsche, M.Godefroid, M.Kowalska, J.Kramer, R.Neugart, G.Neyens, W.Nortershauser, D.T.Yordanov

Cu charge radii reveal a weak sub-shell effect at N=40

ATOMIC PHYSICS 58,59,60,61,62,63,64,65,66,67,68,68m,69,70,70m,71,72,73,74,75Cu; measured isotope shifts, and mean-square charge radii using collinear laser spectroscopy at the CERN-ISOLDE radioactive ion beam facility. The Cu isotopes were produced in Zr(p, X), E=1.4 GeV reaction using RILIS laser ion source and linear Paul trap ISCOOL for separation. Comparison with muonic atomic data, and state-of-the-art atomic physics calculations using multiconfiguration Dirac-Hartree-Fock (MCDHF) method.

doi: 10.1103/PhysRevC.93.064318
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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
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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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2015EL08      Nucl.Phys. A944, 518 (2015)

E.Eliav, S.Fritzsche, U.Kaldor

Electronic structure theory of the superheavy elements

ATOMIC PHYSICS Au, Pb, Rf, Fl; calculated electronic excitation energy, total energy, transition energy, ionization potential using Dirac-Coulomb-Breit Hamiltonian.

doi: 10.1016/j.nuclphysa.2015.06.017
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2015FR08      Eur.Phys.J. D 69, 164 (2015)

N.Frommgen, D.L.Balabanski, M.L.Bissell, J.Bieron, K.Blaum, B.Cheal, K.Flanagan, S.Fritzsche, C.Geppert, M.Hammen, M.Kowalska, K.Kreim, A.Krieger, R.Neugart, G.Neyens, M.M.Rajabali, W.Nortershauser, J.Papuga, D.T.Yordanov

Collinear laser spectroscopy of atomic cadmium

NUCLEAR MOMENTS 107,109,111,113,115,117,119,121,123Cd; measured frequencies; deduced hyperfine structure factors, nuclear magnetic moments and electric quadrupole moments. Comparison with multi-configuration Dirac-Hartree-Fock calculations. Colinear laser spectroscopy at Isolde.

doi: 10.1140/epjd/e2015-60219-0
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2013SE03      Phys.Lett. B 719, 362 (2013)

M.D.Seliverstov, T.E.Cocolios, W.Dexters, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, D.V.Fedorov, V.N.Fedoseyev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, B.A.Marsh, P.L.Molkanov, R.D.Page, A.M.Sjodin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy

Charge radii of odd-A 191-211Po isotopes

NUCLEAR MOMENTS 191,193,195,197,199,201,203,209,211Po; measured optical spectra, isotope shifts, Eα, Iα; deduced mean square charge radii.

doi: 10.1016/j.physletb.2013.01.043
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2013YO02      Phys.Rev.Lett. 110, 192501 (2013)

D.T.Yordanov, D.L.Balabanski, J.Bieron, M.L.Bissell, K.Blaum, I.Budincevic, S.Fritzsche, N.Frommgen, G.Georgiev, Ch.Geppert, M.Hammen, M.Kowalska, K.Kreim, A.Krieger, R.Neugart, W.Nortershauser, J.Papuga, S.Schmidt

Spins, Electromagnetic Moments, and Isomers of 107-129Cd

NUCLEAR MOMENTS 107,109,111,113,115,117,119,121,123,125,127,129Cd; measured the atomic hyperfine structure by the ion-beam fluorescence as a function of the laser frequency scanned via the Doppler effect; deduced J, hyperfine parameters, electromagnetic dipole and quadrupole moments. Comparison with available data.

doi: 10.1103/PhysRevLett.110.192501
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2012CO24      J.Phys.:Conf.Ser. 381, 012072 (2012)

T.E.Cocolios, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, W.Dexters, D.V.Fedorov, V.N.Fedosseev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, E.Mane, B.A.Marsh, P.L.Molkanov, R.D.Page, M.D.Seliverstov, A.M.Sjodin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy

Early onset of deformation in the neutron-deficient polonium isotopes

ATOMIC PHYSICS 191,192,193,194,195,196,197,198,199,200,201,202,203,204,206,208,209,210,211,216,218Po[from high-energy proton-induced spallation of 238U]; measured Eα, Iα, Eβ, Iβ, Eγ, Ιg; deduced even-A charge radius. 199g,199mPo deduced hyperfine spectra, γ transition energy, intensity. Compared with earlier papers.

doi: 10.1088/1742-6596/381/1/012072
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2012PR11      Phys.Rev. C 86, 034329 (2012)

T.J.Procter, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, B.Cheal, K.T.Flanagan, D.H.Forest, S.Fritzsche, Ch.Geppert, H.Heylen, M.Kowalska, K.Kreim, A.Krieger, J.Kramer, K.M.Lynch, E.Mane, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, J.Papuga, M.M.Rajabali, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Nuclear mean-square charge radii of 63, 64, 66, 68-82Ga nuclei: No anomalous behavior at N=32

NUCLEAR REACTIONS Zr(p, X)63Ga/64Ga/66Ga/68Ga/69Ga/70Ga/71Ga/72Ga/73Ga/74Ga/75Ga/76Ga/77Ga/78Ga/79Ga/80Ga/80mGa/81Ga/82Ga, E=1.4 GeV; measured optical spectra, hyperfine coefficients, isotope shifts, mean-square charge radii, J, magnetic dipole and electric quadrupole moments using collinear laser spectroscopy. RILIS source at ISOLDE, CERN facility.

NUCLEAR MOMENTS 63,64,66,68,69,70,71,72,73,74,75,76,77,78,79,80,80m,81,82Ga; measured optical spectra, hyperfine coefficients, isotope shifts, mean-square charge radii, J, magnetic dipole and electric quadrupole moments using collinear laser spectroscopy. RILIS source at ISOLDE, CERN facility. Comparison with shell-model calculations. Z=30, 32, N=30-55; systematics of energies of first 2+ states and E(first 4+)/E(first 2+). Z=28, 30, 31, 36, N=3-0-52; systematics of mean-square charge radii.

doi: 10.1103/PhysRevC.86.034329
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2011AV01      J.Phys.(London) G38, 025104 (2011)

M.Avgoulea, Yu.P.Gangrsky, K.P.Marinova, S.G.Zemlyanoi, S.Fritzsche, D.Iablonskyi, C.Barbieri, E.C.Simpson, P.D.Stevenson, J.Billowes, P.Campbell, B.Cheal, B.Tordoff, M.L.Bissell, D.H.Forest, M.D.Gardner, G.Tungate, J.Huikari, A.Nieminen, H.Penttila, J.Aysto

Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers

NUCLEAR MOMENTS 42,43,44,45,46Sc; measured hyperfine structure; deduced nuclear magnetic dipole moments and electric quadrupole moments, isotope shifts, charge radii, deformation. Shell model calculation, laser spectroscopy.

NUCLEAR STRUCTURE 42,43,44,45,46Sc, 40,41,42,43,44,45,46,47,48Ca; calculated nuclear isomer shifts, radii, magnetic moment, spectroscopic quadrupole moments. Comparison with other data.

doi: 10.1088/0954-3899/38/2/025104
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2011CO01      Phys.Rev.Lett. 106, 052503 (2011)

T.E.Cocolios, W.Dexters, M.D.Seliverstov, A.N.Andreyev, S.Antalic, A.E.Barzakh, B.Bastin, J.Buscher, I.G.Darby, D.V.Fedorov, V.N.Fedosseyev, K.T.Flanagan, S.Franchoo, S.Fritzsche, G.Huber, M.Huyse, M.Keupers, U.Koster, Yu.Kudryavtsev, E.Mane, B.A.Marsh, P.L.Molkanov, R.D.Page, A.M.Sjoedin, I.Stefan, J.Van de Walle, P.Van Duppen, M.Venhart, S.G.Zemlyanoy, M.Bender, P.-H.Heenen

Early Onset of Ground State Deformation in Neutron Deficient Polonium Isotopes

NUCLEAR REACTIONS U(p, X)192Po/194Po/196Po/198Po/200Po/202Po/204Po/206Po/208Po/210Po/216Po/218Po, E=1.4 GeV; measured reaction products, Ee, Ie, Eα, Iα; deduced isotope shifts, mean-square charge radii. Comparison with systematics and FRDM calculations.

doi: 10.1103/PhysRevLett.106.052503
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2010CH15      Phys.Lett. B 690, 346 (2010)

F.C.Charlwood, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, S.Fritzsche, M.Honma, A.Jokinen, I.D.Moore, H.Penttila, R.Powis, A.Saastamoinen, G.Tungate, J.Aysto

Ground state properties of manganese isotopes across the N=28 shell closure

NUCLEAR REACTIONS 50,52Cr(p, n), E=14 MeV; 50Cr(d, n), E=13 MeV;55Mn(p, xnp)53Mn/54Mn, E=33 MeV; 56Fe(d, 2p), E=25 MeV; measured hyperfine spectra; deduced magnetic dipole moments, quadrupole moments, mean-square charge radii, shell closure. Comparison with shell model calculation using GXPF1A interaction.

doi: 10.1016/j.physletb.2010.05.060
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2010CH50      Phys.Rev. C 82, 051302 (2010)

B.Cheal, J.Billowes, M.L.Bissell, K.Blaum, F.C.Charlwood, K.T.Flanagan, D.H.Forest, S.Fritzsche, Ch.Geppert, A.Jokinen, M.Kowalska, A.Krieger, J.Kramer, E.Mane, I.D.Moore, R.Neugart, G.Neyens, W.Nortershauser, M.M.Rajabali, M.Schug, H.H.Stroke, P.Vingerhoets, D.T.Yordanov, M.Zakova

Discovery of a long-lived low-lying isomeric state in 80Ga

NUCLEAR MOMENTS 80Ga; measured optical hyperfine structure spectra, spins, magnetic dipole moments, electric quadrupole moments, half-lives using Collinear laser spectroscopy at ISOLDE, CERN. 80Ga; deduced levels, J, π, isomer, configurations. Comparison with shell-model calculations in restricted and full pfg-model space with a 56Ni core

doi: 10.1103/PhysRevC.82.051302
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2009BO11      Phys.Rev. C 79, 044605 (2009)

L.Borowska, K.Terenetsky, V.Verbitsky, S.Fritzsche

Analytical potential for the elastic scattering of light halo nuclei below and close to the Coulomb barrier

NUCLEAR REACTIONS 208Pb(d, d), E=8 MeV; 208Pb(6He, 6He), E=17.8 MeV; calculated dynamic polarization potentials, σ(θ). Adiabatic motion of light halo nuclei in Coulomb field of heavy targets. Application to systems with dineutron configurations.

doi: 10.1103/PhysRevC.79.044605
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2008DI02      Chinese Physics B 17, 592 (2008)

X.-B.Ding, C.-Z.Dong, F.Koike, T.Kato, S.Fritzsche

Excitation and decay dynamics of 1s2s inner-shell double-vacancy states of neon atoms

doi: 10.1088/1674-1056/17/2/039
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2007BO34      Phys.Rev. C 76, 034606 (2007)

L.Borowska, K.Terenetsky, V.Verbitsky, S.Fritzsche

Dynamic polarization of light halo nuclei in strong fields: 6He+209Bi elastic scattering below and close to the Coulomb barrier

NUCLEAR REACTIONS 208Pb(6He, 6He), E=14.7, 19.1 MeV; calculated elastic σ and angular distributions. Compared results to available data.

doi: 10.1103/PhysRevC.76.034606
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2007FR16      Eur.Phys.J. D 45, 107 (2007)

S.Fritzsche, C.Z.Dong, F.Koike, A.Uvarov

The low-lying level structure of atomic lawrencium (Z = 103): energies and absorption rates

ATOMIC PHYSICS Z=103; calculated level energies and absorption rates using medium-to-large-scale multiconfiguration Dirac-Fock wave functions.

doi: 10.1140/epjd/e2007-00136-3
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2006TO12      Prog.Theor.Phys.(Kyoto) 116, 699 (2006); Erratum Prog.Theor.Phys.(Kyoto) 116, 981 (2006)

M.Tomaselli, T.Kuhl, D.Ursescu, S.Fritzsche

Correlated EoM and Distributions for A = 6 Nuclei

NUCLEAR STRUCTURE 6He, 6Li; calculated charge distributions, level energies, role of microscopic correlation operators.

doi: 10.1143/PTP.116.699
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2006TO18      Hyperfine Interactions 171, 243 (2006)

M.Tomaselli, T.Kuhl, D.Ursescu, S.Fritzsche

Correlation effects on the charge radii of exotic nuclei

NUCLEAR STRUCTURE 6,7,8,9,11Li; calculated charge radii, correlation effects.

doi: 10.1007/s10751-006-9484-1
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2005BB14      Hyperfine Interactions 162, 3 (2005)

H.Backe, A.Dretzke, St.Fritzsche, R.G.Haire, P.Kunz, W.Lauth, M.Sewtz, N.Trautmann

Laser Spectroscopic Investigation of the Element Fermium (Z = 100)

NUCLEAR MOMENTS 255Fm; measured hfs. Resonance ionization spectroscopy.

doi: 10.1007/s10751-005-9209-x
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2005FR13      Eur.Phys.J. D 33, 15 (2005)

S.Fritzsche

On the accuracy of valence-shell computations for heavy and super-heavy elements

ATOMIC PHYSICS Yb, No; calculated atomic energy levels, QED effects.

doi: 10.1140/epjd/e2005-00013-1
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2005TO24      Rom.J.Phys. 50, 401 (2005)

M.Tomaselli, L.C.Liu, D.Ursescu, T.Kuhl, S.Fritzsche

Microscopic correlations in a non-linear and non-perturbative n-body theory

NUCLEAR STRUCTURE 6Li, 18O; calculated levels, J, π. Dynamic correlation model.


2005UR03      Comput.Phys.Commun. 173, 140 (2005)

D.Ursescu, M.Tomaselli, T.Kuehl, S.Fritzsche

Symbolic algorithms for the computation of Moshisky brackets and nuclear matrix elements

doi: 10.1016/j.cpc.2004.09.012
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2004BI11      J.Phys.(London) B37, L305 (2004)

J.Bieron, C.F.Fischer, S.Fritzsche, K.Pachucki

Lifetime and hyperfine structure of the 3D2 state of radium

NUCLEAR MOMENTS Ra; calculated hfs.

doi: 10.1088/0953-4075/37/17/L01
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2004TO14      Nucl.Phys. A738, 216 (2004)

M.Tomaselli, L.C.Liu, S.Fritzsche, T.Kuhl, D.Ursescu

Cluster transformation coefficients in many-body nuclear physics

NUCLEAR STRUCTURE 9Be, 13C; calculated levels, J, π, μ, transition strengths. 6,7,9Li; calculated μ. 7,9Be; calculated matter and charge radii. Dynamic-correlation model, comparison with data.

doi: 10.1016/j.nuclphysa.2004.04.034
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2004TO16      J.Phys.(London) G30, 999 (2004)

M.Tomaselli, L.C.Liu, S.Fritzsche, T.Kuhl

Dressed bosons theory for nuclear structure

NUCLEAR STRUCTURE 18O; calculated levels, J, π. 6He, 6Li; calculated matter density distributions. Boson-dynamic correlation model, comparison with data.

doi: 10.1088/0954-3899/30/9/005
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2004TO25      Nucl.Phys. A746, 587c (2004)

M.Tomaselli, L.C.Liu, S.Fritzsche, T.Kuhl, D.Ursescu, P.Neumayer, A.Wojtaszek

Charge radii of exotic nuclei: nuclear results versus isotopic shift calculations

doi: 10.1016/j.nuclphysa.2004.09.103
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2003TO22      Hyperfine Interactions 146-147, 145 (2003)

M.Tomaselli, T.Kuhl, W.Nortershauser, G.Ewald, R.Sanchez, A.Gluzicka, S.Fritzsche, L.C.Liu

Nuclear and Electron Polarization Contributions to the HFS of Hydrogen- and Lithium-like Ions

NUCLEAR MOMENTS 165Ho, 185,187Re, 203,205Tl, 207Pb, 209Bi; calculated hfs, contributions from nuclear core polarization. Dynamic correlation model.

doi: 10.1023/B:HYPE.0000004241.59336.43
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2002TO01      Phys.Rev. A65, 022502 (2002)

M.Tomaselli, T.Kuhl, W.Nortershauser, S.Borneis, A.Dax, D.Marx, H.Wang, S.Fritzsche

Hyperfine Splitting of Hydrogenlike Thallium

NUCLEAR STRUCTURE 165Ho, 185,187Re, 203,205,207Tl, 207Pb, 209Bi; calculated wave functions, radii, μ, hyperfine splitting for hydrogenlike ions. Dynamic correlation model, comparisons with data.

NUCLEAR MOMENTS 165Ho, 185,187Re, 203,205,207Tl, 207Pb, 209Bi; calculated wave functions, radii, μ, hyperfine splitting for hydrogenlike ions. Dynamic correlation model, comparisons with data.

doi: 10.1103/PhysRevA.65.022502
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2002TO21      Can.J.Phys. 80, 1347 (2002)

M.Tomaselli, Th.Kuhl, W.Nortershauser, G.Ewald, R.Sanchez, S.Fritzsche, S.G.Karshenboim

Systematic model calculations of the hyperfine structure in light and heavy ions

NUCLEAR MOMENTS 165Ho, 185,187Re, 203,205Tl, 207Pb, 209Bi; calculated hfs for hydrogen-like ions. 6,7,9,11Li; calculated radii, μ.

doi: 10.1139/p02-092
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2001TO18      Nucl.Phys. A690, 298c (2001)

M.Tomaselli, S.Fritzsche, A.Dax, P.Egelhof, C.Kozhuharov, T.Kuhl, D.Marx, M.Mutterer, S.R.Neumaier, W.Nortershauser, H.Wang, H.-J.Kluge

Microscopic Model for Charge and Matter Distributions of Nuclei

NUCLEAR STRUCTURE 5,6,7,9,11Li; calculated charge and matter density distributions, radii. Interacting microscopic clusters. Comparison with data.

doi: 10.1016/S0375-9474(01)00963-0
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2000TO11      Phys.Rev. C62, 067305 (2000)

M.Tomaselli, M.Hjorth-Jensen, S.Fritzsche, P.Egelhof, S.R.Neumaier, M.Mutterer, T.Kuhl, A.Dax, H.Wang

Matter and Charge Distributions of 6He and 5, 6, 7, 9Li within the Dynamic-Correlation Model

NUCLEAR STRUCTURE 6He, 5,6,7,9Li; calculated matter and charge distributions, radii, halo features. Dynamic-correlation model.

doi: 10.1103/PhysRevC.62.067305
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2000TO13      Hyperfine Interactions 127, 95 (2000)

M.Tomaselli, P.Egelhof, S.R.Neumaier, M.Mutterer, T.Kuhl, A.Dax, F.Schmitt, S.Fritzsche

Microscopic calculations of matter and charge distributions of exotic nuclei within the Dynamic-Correlation Model

NUCLEAR STRUCTURE 6He, 5,6,7,8Li; calculated matter and charge distributions, radii. Dynamic-correlation model.

NUCLEAR REACTIONS 6He(p, p), E not given; calculated σ(θ). Comparison with data.

doi: 10.1023/A:1012658609988
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2000TO14      Hyperfine Interactions 127, 315 (2000)

M.Tomaselli, S.Fritzsche, T.Kuhl, H.Winter

Hyperfine structure of Li-like bismuth

NUCLEAR MOMENTS 209Bi; calculated hfs in lithium-like ions. Comparison with data.

doi: 10.1023/A:1012680609505
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