2019

Nuclear charge radii of ⁶²⁻⁸⁰Zn and their dependence on cross-shell proton excitations

L. Xie, X.F. Yang, C. Wraith, C. Babcock, J. Bieroń, J. Billowes, M.L. Bissell, K. Blaum, B. Cheal, L. Filippin, K.T. Flanagana, R.F. Garcia Ruiz, W. Gins, G. Gaigalas, M. Godefroid, C. Gorges, L.K. Grob, H. Heylenc, P. Jönsson, S. Kaufmann, M. Kowalska, J. Krämer, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, T.Otsuka, J. Papuga, R. Sánchez, Y. Tsunoda, D.T. Yordanov
Phys. Lett. B 797, 134805 (2019)

Hyperfine structure and nuclear magnetic moments of the praseodymium isotopes ^135,136,137Pr

N. Frömmgen, W. Nörtershäuser, M.L. Bissell, K. Blaum, C. Geppert, M. Hammen, M. Kowalska, J. Krämer, K. Kreim, A. Krieger, Y.A. Litvinov, R. Neugart, G. Neyens, J. Papuga, R. Sánchez, D.T. Yordanov
Hyperfine Interact. 240:66 (2019)

Quadrupole moments of ²⁹Mg and ³³Mg

D.T. Yordanov, M. Kowalska, K. Blaum, M. De Rydt, K.T. Flanagan, P. Himpe, P. Lievens, S. Mallion, R. Neugart, G. Neyens, N. Vermeulen, H. Stroke
Hyperfine Interact. 240:67 (2019)

Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N=82 Shell Closure

C. Gorges, L.V. Rodríguez, D.L. Balabanski, M.L. Bissell, K. Blaum, B. Cheal, R.F. Garcia Ruiz, G. Georgiev, W. Gins, H. Heylen, A. Kanellakopoulos, S. Kaufmann, M. Kowalska, V. Lagaki, S. Lechner, B. Maaß, S. Malbrunot-Ettenauer, W. Nazarewicz, R. Neugart, G. Neyens, W. Nörtershäuser, P.-G. Reinhard, S. Sailer, R. Sánchez, S. Schmidt, L. Wehner, C. Wraith, L. Xie, Z.Y. Xu, X.F. Yang, and D.T. Yordanov
Phys. Rev. Lett. 122, 192502 (2019)

2018

From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of ^100−130Cd

M. Hammen, W. Nörtershäuser, D. L. Balabanski, M. L. Bissell, K. Blaum, I. Budinčević, B. Cheal, K. T. Flanagan, N. Frömmgen, G. Georgiev, Ch. Geppert, M. Kowalska, K. Kreim, A. Krieger, W. Nazarewicz, R. Neugart, G. Neyens, J. Papuga, P.-G. Reinhard, M. M. Rajabali, S. Schmidt, and D. T. Yordanov
Phys. Rev. Lett. 121, 102501 (2018)

Spins and electromagnetic moments of ^101–109Cd

D. T. Yordanov, D. L. Balabanski, M. L. Bissell, K. Blaum, A. Blazhev, I. Budinčević, N. Frömmgen, Ch. Geppert, H. Grawe, M. Hammen, K. Kreim, R. Neugart, G. Neyens, and W. Nörtershäuser
Phys. Rev. C 98, 011303(R) (2018)

Investigating the large deformation of the 5/2⁺ isomeric state in ⁷³Zn: An indicator for triaxiality

X. F. Yang, Y. Tsunoda, C. Babcock, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, K. T. Flanagan, R. F. Garcia Ruiz, W. Gins, C. Gorges, L. K. Grob, H. Heylen, S. Kaufmann, M. Kowalska, J. Krämer, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, T. Otsuka, J. Papuga, R. Sánchez, C. Wraith, L. Xie, and D. T. Yordanov
Phys. Rev. C 97, 044324 (2018)

The nuclear magnetic moment of ²⁰⁸Bi and its relevance for a test of bound-state strong-field QED

S. Schmidta, J. Billowes, M.L. Bissell, K.Blaum, R.F.Garcia Ruiz, H.Heylen, S.Malbrunot-Ettenauer, G.Neyens, W.Nörtershäuser, G.PlunienfS.Sailerc, V.M.Shabaev, L.V.Skripnikovh, I.I.Tupitsynh, A.V.Volotkah, X.F.Yang
Phys. Lett. B 779, 324-330 (2018)

Frequency-Comb Referenced Collinear Laser Spectroscopy of Be⁺ for Nuclear Structure Investigations and Many-Body QED Tests

A. Krieger, W. Nörtershäuser, Ch. Geppert, K. Blaum, M. L. Bissell, N. Frömmgen, M. Hammen, K. Kreim, M. Kowalska, J. Krämer, R. Neugart, G. Neyens, R. Sánchez, D. Tiedemann, D. T. Yordanov, M. Zakova
Meschede D., Udem T., Esslinger T. (eds) Exploring the World with the Laser, 175-205 (2018)

2017

Spin and magnetic moment of ²³Mg

D.T. Yordanov, M.L. Bissell, K. Blaum, M. De Rydt, Ch. Geppert, J. Krämer, K. Kreim, M. Kowalska, A. Krieger, P. Lievens, R. Neugart, G. Neyens, W. Nörtershäuser, L.V. Rodríguez, R. Sánchez and P. Vingerhoets
J. Phys. G: Nucl. Part. Phys. 44, 075104 (2017)

Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

C. Wraith, X.F. Yang, L. Xie, C. Babcock, J. Bieroń, J. Billowes, M.L. Bissell, K. Blaum, B. Cheal, L. Filippin, R.F. Garcia Ruiz, W. Gins, L.K. Grob, G. Gaigalas, M. Godefroid, C. Gorges, H. Heylen, M. Honma, P. Jönsson, S. Kaufmann, M. Kowalska, J. Krämer, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, F. Nowacki, T. Otsuka, J. Papuga, R. Sánchez, Y. Tsunoda, D.T. Yordanov
Phys. Lett. B 771, 385-391 (2017)

Development of a sensitive setup for laser spectroscopy studies of very exotic calcium isotopes

R.F. Garcia Ruiz, C. Gorges, M. Bissell, K. Blaum, W. Gins, H. Heylen, K. Koenig, S. Kaufmann, M. Kowalska, J. Krämer, P. Lievens, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, D.T. Yordanov and X.F. Yang
J. Phys. G: Nucl. Part. Phys. 44, 044003 (2017)

Collinear laser spectroscopy at ISOLDE: new methods and highlights

R. Neugart, J. Billowes, M.L. Bissell, K. Blaum, B. Cheal, K.T. Flanagan, G. Neyens, W. Nörtershäuser and D.T. Yordanov
J. Phys. G: Nucl. Part. Phys. 44, 064002 (2017)

2016

Simple Nuclear Structure in ^111–129Cd from Atomic Isomer Shifts

D.T. Yordanov, D.L. Balabanski, M.L. Bissell, K. Blaum, I. Budinčević, B. Cheal, K. Flanagan, N. Frömmgen, G. Georgiev, Ch. Geppert, M. Hammen, M. Kowalska, K. Kreim, A. Krieger, J. Meng, R. Neugart, G. Neyens, W. Nörtershäuser, M.M. Rajabali5, J. Papuga, S. Schmidt, and P.W. Zhao
Phys. Rev. Lett. 116, 032501 (2016)

Isomer Shift and Magnetic Moment of the Long-Lived 1/2⁺ Isomer in⁷⁹₃₀Zn₄₉: Signature of Shape Coexistence near ⁷⁸Ni

X.F. Yang, C. Wraith, L. Xie, C. Babcock, J. Billowes, M.L. Bissell, K. Blaum, B. Cheal, K.T. Flanagan, R.F. Garcia Ruiz, W. Gins, C. Gorges, L.K. Grob, H. Heylen, S. Kaufmann, M. Kowalska, J. Kraemer, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, R. Sánchez, and D.T. Yordanov
Phys. Rev. Lett. 116, 182502 (2016)
Erratum: Phys. Rev. Lett. 116, 219901 (2016)

Quadrupole moments of odd-A ⁵³⁻⁶³Mn: Onset of collectivity towards N = 40

C. Babcock, H. Heylen, M.L. Bissell, K. Blaum, P. Campbell, B. Cheal, D. Fedorov, R.F. Garcia Ruiz, W. Geithner, W. Gins, T. Day Goodacre, L.K. Grob, M. Kowalska, S.M. Lenzi, B. Maass, S. Malbrunot-Ettenauer, B. Marsh, R. Neugart, G. Neyens, W. Nörtershäuser, T. Otsuka, R. Rossel, S. Rothe, R. Sánchez, Y. Tsunoda, C. Wraith, L. Xie, X.F. Yang
Phys. Lett. B 760, 387-392 (2016)

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

M.L. Bissell, T. Carette, K.T. Flanagan, P. Vingerhoets, J. Billowes, K. Blaum, B. Cheal, S. Fritzsche, M. Godefroid, M. Kowalska, J. Krämer, R. Neugart, G. Neyens, W. Nörtershäuser, and D.T. Yordanov
Phys. Rev. C 93, 064318 (2016)

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

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. Nörtershäuser, T. Otsuka, J. Papuga, R. Rossel, S. Rothe, R. Sánchez, Y. Tsunoda, C. Wraith, L. Xie, X.F. Yang, and D.T. Yordanov
Phys. Rev. C 94, 054321 (2016)

2015

Evidence for Increased neutron and proton excitations between ⁵¹⁻⁶³Mn

C. Babcock, H. Heylen, J. Billowes, M.L. Bissell, K. Blaum, P. Campbell, B. Cheal, R.F. Garcia Ruiz, C. Geppert, W. Gins, M. Kowalska, K. Kreim, S.M. Lenzi, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, D.T. Yordanov
Phys. Lett. B 750, 176-180 (2015)

Ground-state electromagnetic moments of calcium isotopes

R.F. Garcia Ruiz, M.L. Bissell, K. Blaum, N. Frömmgen, M. Hammen, J.D. Holt, M. Kowalska, K. Kreim, J. Menéndez, R. Neugart, G. Neyens, W. Nörtershäuser, F. Nowacki, J. Papuga, A. Poves, A. Schwenk, J. Simonis, and D.T. Yordanov
Phys. Rev. C 91, 041304(R) (2015)

Spins and magnetic moments of ^58,60,62,64Mn ground states and isomers

H. Heylen, C. Babcock, J. Billowes, M.L. Bissell, K. Blaum, P. Campbell, B. Cheal, R.F. Garcia Ruiz, Ch. Geppert, W. Gins, M. Kowalska, K. Kreim, S.M. Lenzi, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, and D.T. Yordanov
Phys. Rev. C 92, 044311 (2015)

Collinear Laser Spectroscopy on Neutron-rich Mn Isotopes Approaching N = 40

H. Heylen, C. Babcock, J. Billowes, M.L. Bissell, K. Blaum, P. Campbell, K. Kreim, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, D.T. Yordanov
Acta Phys. Pol. B 46, 699 (2015)

Precision Test of Many-Body QED in the Be⁺ 2p Fine Structure Doublet Using Short-Lived Isotopes

W. Nörtershäuser, Ch. Geppert, A. Krieger, K. Pachucki, M. Puchalski, K. Blaum, M.L. Bissell, N. Frömmgen, M. Hammen, M. Kowalska, J. Krämer, K. Kreim, R. Neugart, G. Neyens, R. Sánchez, and D.T. Yordanov7
Phys. Rev. Lett. 115, 033002 (2015)

2014

Nuclear charge radii of potassium isotopes beyond N=28

K. Kreim, M.L. Bissell, J. Papuga, K. Blaum, M. De Rydt, R.F. Garcia Ruiz, S. Goriely, H. Heylen, M. Kowalska, R. Neugart, G. Neyens, W. Nörtershäuser, M.M. Rajabali, R. Sánchez Alarcón, H.H. Stroke, D.T. Yordanov
Phys. Lett. B 731, 97-102 (2014)

Shell structure of potassium isotopes deduced from their magnetic moments

J. Papuga, M.L. Bissell, K. Kreim, C. Barbieri, K. Blaum, M. De Rydt, T. Duguet, R.F. Garcia Ruiz, H. Heylen, M. Kowalska, R. Neugart, G. Neyens, W. Nörtershäuser, M.M. Rajabali, R. Sánchez, N. Smirnova, V. Somà, and D.T. Yordanov
Phys. Rev. C 90, 034321 (2014)

Proton-Neutron Pairing Correlations in the Self-Conjugate Nucleus ³⁸K Probed via a Direct Measurement of the Isomer Shift

M.L. Bissell, J. Papuga, H. Naïdja, K. Kreim, K. Blaum, M. De Rydt, R.F. Garcia Ruiz, H. Heylen, M. Kowalska, R. Neugart, G. Neyens, W. Nörtershäuser, F. Nowacki, M.M. Rajabali, R. Sanchez, K. Sieja, and D.T. Yordanov5
Phys. Rev. Lett. 113, 052502 (2014)

Billion‐Fold Enhancement in Sensitivity of Nuclear Magnetic Resonance Spectroscopy for Magnesium Ions in Solution

A. Gottberg, M. Stachura, M. Kowalska, M.L. Bissell, V. Arcisauskaite, K. Blaum, A. Helmke, K. Johnston, K. Kreim, F.H. Larsen, R. Neugart, G. Neyens, R.F. Garcia Ruiz, D. Szunyogh, P.W. Thulstrup, D.T. Yordanov, L. Hemmingsen
ChemPhysChem 15, 3929-3932 (2014)

2013

Spins, Electromagnetic Moments, and Isomers of ^107−129Cd

D.T. Yordanov, D.L. Balabanski, J. Bieroń, M.L. Bissell, K. Blaum, I. Budinčević, S. Fritzsche, N. Frömmgen, G. Georgiev, Ch. Geppert, M. Hammen, M. Kowalska, K. Kreim, A. Krieger, R. Neugart, W. Nörtershäuser, J. Papuga, and S. Schmidt
Phys. Rev. Lett. 110, 192501 (2013)

Spins and Magnetic Moments of ⁴⁹K and ⁵¹K: Establishing the 1/2⁺ and 3/2⁺ Level Ordering Beyond N=28

J. Papuga, M.L. Bissell, K. Kreim, K. Blaum, B.A. Brown, M. De Rydt, R.F. Garcia Ruiz, H. Heylen, M. Kowalska, R. Neugart, G. Neyens, W. Nörtershäuser, T. Otsuka, M.M. Rajabali, R. Sánchez, Y. Utsuno, and D.T. Yordanov
Phys. Rev. Lett. 110, 172503 (2013)

Ground state moments and spins of neutron-rich K and Al isotopes as probes for changes in nuclear structure

G. Neyens
J. Phys. Conf. Ser. 445, 012007 (2013)

2012

Nuclear Charge Radii of ²¹⁻³²Mg

D.T. Yordanov, M.L. Bissell, K. Blaum, M. De Rydt, Ch. Geppert, M. Kowalska, J. Krämer, K. Kreim, A. Krieger, P. Lievens, T. Neff, R. Neugart, G. Neyens, W. Nörtershäuser, R. Sánchez, and P. Vingerhoets
Phys. Rev. Lett. 108, 042504 (2012)

Nuclear Charge Radius of ¹²Be

A. Krieger, K. Blaum, M.L. Bissell, N. Frömmgen, Ch. Geppert, M. Hammen, K. Kreim, M. Kowalska, J. Krämer, T. Neff, R. Neugart, G. Neyens, W. Nörtershäuser, Ch. Novotny, R. Sánchez, and D.T. Yordanov
Phys. Rev. Lett. 108, 142501 (2012)

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

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. Krämer, K.M. Lynch, E. Mané, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, M.M. Rajabali, H.H. Stroke, P. Vingerhoets, D.T. Yordanov and M. Žáková
Phys. Rev. C 86, 034329 (2012)

2011

Ground-state spins and moments of ^72,74,76,78Ga nuclei

E. Mané, B. Cheal, J. Billowes, M.L. Bissell, K. Blaum, F.C. Charlwood, K.T. Flanagan, D.H. Forest, Ch. Geppert, M. Kowalska, A. Krieger, J. Krämer, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M.M. Rajabali, R. Sánchez, M. Schug, H.H. Stroke, P. Vingerhoets, D.T. Yordanov, and M. Žáková
Phys. Rev. C 84, 024303 (2011)

2010

Nuclear spins, magnetic moments, and quadrupole moments of Cu isotopes from N=28 to N=46: Probes for core polarization effects

P. Vingerhoets, K.T. Flanagan, M. Avgoulea, J. Billowes, M.L. Bissell, K. Blaum, B.A. Brown, B. Cheal, M. De Rydt, D.H. Forest, Ch. Geppert, M. Honma, M. Kowalska, J. Krämer, A. Krieger, E. Mané, R. Neugart, G. Neyens, W. Nörtershäuser, T. Otsuka, M. Schug, H.H. Stroke, G. Tungate, and D.T. Yordanov
Phys. Rev. C 82, 064311 (2010)

Nuclear Spins and Moments of Ga Isotopes Reveal Sudden Structural Changes between N=40 and N=50

B. Cheal, E. Mané, J. Billowes, M.L. Bissell, K. Blaum, B.A. Brown, F.C. Charlwood, K.T. Flanagan, D.H. Forest, C. Geppert, M. Honma, A. Jokinen, M. Kowalska, A. Krieger, J. Krämer, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M. Schug, H.H. Stroke, P. Vingerhoets, D.T. Yordanov, and M. Žáková
Phys. Rev. Lett. 104, 252502 (2010)

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

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. Krämer, E. Mané, I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M.M. Rajabali, M. Schug, H.H. Stroke, P. Vingerhoets, D.T. Yordanov, and M. Žáková
Phys. Rev. C 82, 051302(R) (2010)

Comment on “Intruder Configurations in the A=33 Isobars: ³³Mg and ³³Al

D.T. Yordanov, K. Blaum, M. De Rydt, M. Kowalska, R. Neugart, G. Neyens, and I. Hamamoto
Phys. Rev. Lett. 104, 129201 (2010)

Isotope shift measurements in the 2s_1/2 → 2p_3/2 transition of Be⁺ and extraction of the nuclear charge radii for ^7,10,11Be

M. Žáková, Z. Andjelkovic, M.L. Bissell, K. Blaum, G.W.F. Drake, Ch. Geppert, M. Kowalska, J. Krämer, A. Krieger, M. Lochmann, T. Neff, R. Neugart, W. Nörtershäuser, R. Sánchez, F. Schmidt-Kaler, D. Tiedemann, Z.-C. Yan, D. T. Yordanov and C. Zimmermann
J. Phys. G: Nucl. Part. Phys. 37, 055107 (2010)

Experimental determination of an I^π=2^- ground state in ^72,74Cu

K.T. Flanagan, P. Vingerhoets, M.L. Bissell, K. Blaum, B.A. Brown, B. Cheal, M. De Rydt, D.H. Forest, Ch. Geppert, M. Honma, M. Kowalska, J. Krämer, A. Krieger, E. Mané, R. Neugart, G. Neyens, W. Nörtershäuser, M. Schug, H.H. Stroke, and D.T. Yordanov
Phys. Rev. C 82, 041302(R) (2010)

Laser spectroscopy in the island of inversion

D.T. Yordanov for the COLLAPS Collaboration
Hyperfine Interact. 196:53 (2010)