Short-Lived Radioactive Molecules
Precision measurements of molecular systems provide highly sensitive laboratories for exploring the possible violation of fundamental symmetries and search for new physics beyond the standard model physics [Barr14,Demi17,Safr18]. Radioactive molecules compound of heavy and deformed short-lived isotopes are predicted to offer unprecedented sensitivity to investigate parity and time reversal violation effects. However, the experimental knowledge of short-lived radioactive molecules is scarce, and quantum chemistry calculations has constituted the only source of spectroscopy information.
[Barr14] Barry, J. et al. Nature 512, 286 (2014).
[Demi17] DeMille et al. Science 357, 990 (2017).
[Safr18] Safronova et al. Rev Mod Phys 90, 025008 (2018).
PUBLICATIONS
82."Cool molecular highly charged ions for precision tests of fundamental physics".
C. Zülch, K. Gaul, S. M. Giesen, R. F. Garcia Ruiz, R. Berger
81."Quantum Sensors for HEP Science--Interferometers, Mechanics, Traps, and Clocks".
D. Carney, T. Cecil, J. Ellis, R.F. Garcia Ruiz, A. A. Geraci, D. Hanneke, J. Hogan, N. R Hutzler, A. Jayich,
S. Kolkowitz, G. W. Morley, H. Muller, Z. Pagel, C. Panda, M. S. Safronova
80."Electric dipole moments and the search for new physics".
P.R. Alarcon et al.
79."Modeling of transient interference phenomena in collinear laser spectroscopy".
J. Jovanović and R. F. Garcia Ruiz
Accepted in Physical Review A (2022).
78."Laser Spectroscopy for the Study of Exotic Nuclei".
X. F. Yang, S. J. Wang, S. G. Wilkins, R. F. Garcia Ruiz
Accepted in Prog. in Part. and Nucl. Phys. arXiv:2209.15228 (2022).
77."Nuclear moments of indium isotopes reveal abrupt change at magic number 82".
A. Vernon, R.F. Garcia Ruiz, T. Miyagi , C. Binnersley , J. Billowes , M. Bissell , J. Bonnard , T. Cocolios , J.
Dobaczewski, G. Farooq-Smith , K. Flanagan , G. Georgiev , W. Gins , R. de Groote , R. Heinke , J. Holt , ,
J. Hustings, Á. Koszorús , D. Leimbach, K. Lynch , G. Neyens , S. Stroberg , S. Wilkins , X. Yang , D. Yordanov
76."Nuclear charge radii of Na isotopes: Interplay of atomic and nuclear theory".
B. Ohayon, R.F. Garcia Ruiz, Z.H. Sun, G. Hagen, T. Papenbrock, B.K. Sahoo
Physical Review C Letters 105, L031305 (2022).
75."Nuclear Charge Radii of the Nickel Isotopes 58−68,70Ni".
S. Malbrunot-Ettenauer, S. Kaufmann, S. Bacca, C. Barbieri, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal,
T. Duguet, R. F. Garcia Ruiz et al.
Physical Review Letters 128, 022502 (2022).
74."Electromagnetic moments of scandium isotopes and N = 28 isotones in the f7/2 orbit".
S. W. Bai, A. Koszorus, B. S. Hu, X. F. Yang, J. Billowes, C. L. Binnersley, M. L. Bissell, K. Blaum, P. Campbell,
B. Cheal, T. E. Cocolios, R. P. de Groote, C. S. Devlin, K. T. Flanagan, R. F. Garcia Ruiz et al.
Physics Letters B, 137064 (2022).
73."Global analysis of electromagnetic moments in odd near doubly magic nuclei".
P.L. Sassarini, J. Dobaczewski, J. Bonnard, R.F. Garcia Ruiz
J. Phys. G: Nucl. Part. Phys. 49 11LT01 (2022).
72."Neutron transfer reactions on the ground state and isomeric state of a 130Sn beam".
K. L. Jones, A. Bey, S. Burcher, J. M. Allmond, A. Galindo-Uribarri, D. C. Radford, S. Ahn, A. Ayres D. W.
Bardayan, J. A. Cizewski, R. F. Garcia Ruiz, M. E. Howard, R. L. Kozub, J. F. Liang, B. Manning, M. Matos,
C. D. Nesaraja, P. D. O'Malley, E. Padilla-Rodal, S. D. Pain, S. T. Pittman, A. Ratkiewicz, K. T. Schmitt,
M. S. Smith, D. W. Stracener, and R. L. Varner
Physical Review C 105, 024602 (2022).
71."Towards CP Violation Studies on Superheavy Molecules: Theoretical and Experimental Perspective".
R. Mitra, V. S. Prasannaa, R. F. Garcia Ruiz, T. K. Sato, M. Abe, Y. Sakemi, B. P. Das, B. K. Sahoo
Physical Review A 104, 062801 (2022).
70."Isotope Shifts of Radium Monofluoride Molecules".
S.M. Udrescu, A.J. Brinson, R.F. Garcia Ruiz, K. Gaul, R. Berger, J. Billowes, C.L. Binnersley, M.L. Bissell,
A.A. Breier, K. Chrysalidis, T.E. Cocolios, B.S. Cooper, K.T. Flanagan, T.F. Giesen, R.P. de Groote, S. Franchoo,
F.P. Gustafsson, T.A. Isaev, A. Koszorus, G. Neyens, H.A. Perrett, C.M. Ricketts, S. Rothe, A.R. Vernon, K.Wendt,
F. Wienholtz, S.G. Wilkins, X.F. Yang
Physical Review Letters 127, 033001 (2021).
Editors' Suggestion Featured in Physics See Viewpoint: Sizing up Exotic Nuclei with Radioactive Molecules
Featured in MIT News
69."Large Shape Staggering in Neutron-Deficient Bi Isotopes". A. Barzakh, A. N. Andreyev, C. Raison, J. G. Cubiss, P.
Van Duppen, S. Péru, S. Hilaire, S. Goriely, B. Andel, S. Antalic, M. Al Monthery, J. C. Berengut, J. Bieroń, M. L.
Bissell, A. Borschevsky, K. Chrysalidis, T. E. Cocolios, T. Day Goodacre, J.-P. Dognon, M. Elantkowska, E. Eliav, G. J.
Farooq-Smith, D. V. Fedorov, V. N. Fedosseev, L. P. Gaffney, R. F. Garcia Ruiz et al.
Physical Review Letters 127, 192501 (2021).
68."Neutron occupancies and single-particle energies across the stable tin isotopes".
S.V. Szwec, D. Sharp, B. Kay, S. Freeman, J. P. Schiffer, P. Adsley, C. Binnersley, N. de Séréville, T. Faestermann,
R. F. Garcia Ruiz, F. Hammache, R. Hertenberger, A. Meyer, I. Stefan, A. Vernon, S. Wilkins, H.-F. Wirth
Physical Review C 104, 054308 (2021).
67."Evidence of a sudden increase in the nuclear size of proton-rich silver-96".
M. Reponen, R. de Groote , L. Ayoubi , O. Beliuskina , M. Bissell , P. Campbell , L. Cañete , B. Cheal ,
K. Chrysalidis , C. Delafosse , A. Roubin , C. Devlin , T. Eronen , R.F. Garcia Ruiz et al.
Nature Communications 12, 4596 (2021).
66."Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N 32".
Á. Koszorús, X. F. Yang, W. G. Jiang, S. W. Bai, J. Billowes, C. L. Binnersley, M. L. Bissell, T. E. Cocolios,
B. Cooper, R. P. de Groote, A. Ekström, K. T. Flanagan, C. Forssén, S. Franchoo, R. F. Garcia Ruiz, P. Gustafsson,
G. Hagen, G. R. Jansen, A. Kanellakopoulos, M. Kortelainen, W. Nazarewicz, G. Neyens, S. Novario,
T. Papenbrock, P.-G. Reinhard, B. K. Sahoo, C. M. Ricketts, A R. Vernon, S. G. Wilkins
Highlighted in Nature News & Views
65."Ab initio study and assignment of electronic states in molecular RaCl".
T. Isaev, A. Zaitsevskii, A. Oleynichenko, E. Eliav, R.F. Garcia Ruiz, A. Breier, T. Giesen, and R. Berger
Journal of Quantitative Spectroscopy and Radiative Transfer 269, 107649 (2021).
64."High-resolution laser spectroscopy of 27-32Al".
H. Heylen, C.S. Devlin, W. Gins, M.L. Bissell, K. Blaum, B. Cheal, L. Filippin, R.F. Garcia Ruiz, M. Godefroid,
C. Gorges, J.D. Holt, A. Kanellakopoulos, S. Kaufmann, Á. Koszorús, K. König, S. Malbrunot-Ettanauer, T. Miyagi,
R. Neugart, G. Neyens, W. Nörtershäuser, R. Sánchez, F. Sommer, L.V. Rodríguez, L. Xie, Z.Y. Xu, X.F. Yang,
D.T. Yordanov
Physical Review C 103, 014318 (2021).
63."Designer Molecules for Fundamental-Symmetry Tests"
R.F. Garcia Ruiz
62."Searches for new sources of CP violation using molecules as quantum sensors"
N. R. Hutzler, A. Borschevsky, D. Budker, D. DeMille, V. V. Flambaum, G. Gabrielse, R. F. Garcia Ruiz, A. M. Jayich,
L. A. Orozco, M. Ramsey-Musolf, M. Reece, M. S. Safronova, J. T. Singh, M. R. Tarbutt, T. Zelevinsky
61."Testing the single-particle character of 133Sb and 134Sb via their electromagnetic moments".
S. Lechner, Z. Y. Xu, M. L. Bissell, K. Blaum, B. Cheal, G. De Gregorio, C. S. Devlin, R. F. Garcia Ruiz, A. Gargano, H. Heylen, P. Imgram, A. Kanellakopoulos, A. Koszorus, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W.
Nörtershäuser, P. Plattner, L. V. Rodriguez, X. F. Yang and D. T. Yordanov
Physical Review C 104, 014302 (2021).
60."Spectroscopy of short-lived radioactive molecules"
R.F. Garcia Ruiz, R. Berger, J. Billowes, C.L. Binnersley, M.L. Bissell, A.A. Breier, A.J. Brinson, K. Chrysalidis, T. Cocolios,
B. Cooper, K.T. Flanagan, T.F. Giesen, R.P. de Groote, S.Franchoo, F.P. Gustafsson, T.A. Isaev, A. Koszorus, G. Neyens,
H.A. Perrett, C.M. Ricketts, S.Rothe, L. Schweikhard, A.R. Vernon, K.D.A. Wendt, F. Wienholtz, S.G. Wilkins, X.F. Yang.
Featured in CERN News MIT News Chemistry World KU Leuven Uni Manchester
Frankfurt Allgemeine Innovations Report Mainz Chemie Uni Greifswald
Uni Kassel Science Daily Wiley Analytical Science Physics World Physics Today
59."Measurement and microscopic description of odd–even variations of charge radii of exotic copper
isotopes"
R.P. De Groote, J. Billowes, C.L. Binnersley, M.L. Bissell, T. E. Cocolios, T. Day Goodacre, Farooq-Smith, D.V. Fedorov, K.T.
Flanagan, S. Franchoo, R.F. Garcia Ruiz, W. Gins, J.D. Holt, Á. Koszorús, K.M. Lynch, W. Nazarewicz, G. Neyens, P,-G.
Reinhard, S. Rothe, H.Stroke, A.R. Vernon, K. Wendt, S. Wilkins, Z. Xu, X. Yang
Nature Physics 16, 620 (2020).
Featured in CERN EP Newsletter Phys.org
58."Charge radius of the short-lived 68Ni and correlation with the dipole polarizability"
S. Kaufmann, J. Simonis, S. Bacca, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, R. F. Garcia Ruiz, W. Gins,
C. Gorges, G. Hagen, H. Heylen, A.Kanellakopoulos, S. Malbrunot-Ettenauer, M. Miorelli, R.Neugart, G. Neyens,
W. Nörtershäuser, R. Sánchez, S. Sailer, A. Schwenk, T. Ratajczyk, L. V. Rodríguez, L. Wehner, C. Wraith, L. Xie,
Z. Y. Xu, X. F. Yang, D. T. Yordanov
Physical Review Letters 124, 132502 (2020).
57."The electron affinity of astatine". D. Leimbach, J. Sundberg, Y. Guo, R. Ahmed, J. Ballof, L. Bengtsson,
F. B. Pamies, A. Borschevsky, K. Chrysalidis, E. Eliav, D. Fedorov, V. Fedosseev, O. Forstner, N. Galland,
R.F. Garcia Ruiz, C. Granados, R. Heinke, K. Johnston, A. Koszorus, U. Köster, M. K. Kristiansson, Y. Liu, B. Marsh,
P. Molkanov, L.F. Pašteka, J. Pedro Ramos, E. Renault, M. Reponen, A. Ringvall-Moberg, R. E. Rossel, D. Studer,
A. Vernon, J. Warbinek, J. Welander, K. Wendt, S. Wilkins, D. Hanstorp, S. Rothe
Nature Communications 11, 3824 (2020).
56."Laser spectroscopy of indium Rydberg atom bunches by electric field ionization". A. R. Vernon, C. Ricketts, J.Billowes, T. E. Cocolios, B. S. Cooper, K. T. Flanagan, R. F. Garcia Ruiz, F. P. Gustafsson, G. Neyens, H. Perrett,
B. K. Sahoo, Q. Wang, F. J. Waso, and X. F. Yang
Scientific Reports 10, 12306 (2020).
55."Emergence of simple patterns in many-body systems: from macroscopic objects to the atomic nucleus".
R.F. Garcia Ruiz, A.V. Vernon
European Physics Journal A 56, 136 (2020).
54."New structural trends in atomic nuclei from laser spectroscopy of tin". D. T. Yordanov, L. V. Rodríguez,
D. L. Balabanski, J. Bieron, M. L. Bissell, K. Blaum, B. Cheal, J. Ekman, G. Gaigalas, R.F. Garcia Ruiz et al.
Communications Physics 3, 107 (2020)
53."β-delayed fission of isomers in 188Bi". B. Andel, A. N. Andreyev, S. Antalic, M. Al Monthery, A. Barzakh,
M. L. Bissell, K. Chrysalidis, T. E. Cocolios, J. G. Cubiss, T. Day Goodacre, N. Dubray, G. J. Farooq-Smith,
D. V. Fedorov, V. N. Fedosseev, L. P. Gaffney, R. F. Garcia Ruiz et al.
Phys. Rev. C 102, 014319 (2020).
52."Beyond the charge radius: the information content of the fourth radial moment".
P.-G. Reinhard, W. Nazarewicz, R.F. Garcia Ruiz
Phys. Rev. C 101, 021301(R) (2020).
51. "Analytic Response Relativistic Coupled-Cluster Theory: The first application to In isotope shifts".
B.K. Sahoo, A.R. Vernon, R.F. Garcia Ruiz, C.L. Binnersley, J. Billowes, T.E. Cocolios, G. Farooq-Smith, K.T. Flanagan,
W. Gins, R.de Groote, F. P. Gustafsson, A. Koszorus, K.M. Lynch, G. Neyens, C. Ricketts, K. Wendt, S. Wilkins, X. Yang.
New Journal of Physics 22, 012001 (2020).
50."Tin resonance ionization schemes for atomic and nuclear structure studies".
P. Gustafsson, C.M. Ricketts, M.L. Reitsma, R.F. Garcia Ruiz, S.W. Bai, J.C. Berengut, J. Billowes, A. Borschevsky, T.E. Cocolios, B.S. Cooper, K.T. Flanagan, Á. Koszorús, G. Neyens, H.A. Perrett, A.R. Vernon, Q. Wang,
S. G. Wilkins, and X.F. Yang
Phys. Rev. A 102, 052812 (2020).
49."Nuclear Moments of Germanium Isotopes around N = 40".
A. Kanellakopoulos, X. F. Yang, M. L. Bissell, M. L. Reitsma, S. W. Bai, J. Billowes, K. Blaum, A. Borschevsky,
B. Cheal, C. S. Devlin, R. F. Garcia Ruiz, H. Heylen, S. Kaufmann, K. König, Á. Koszorús, S. Lechner,
S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, T. Ratajczyk, L. V. Rodrı́guez, S. Sels,
S. J. Wang, L. Xie, Z. Y. Xu, and D. T. Yordanov
Phys. Rev. C 102, 054331 (2020).
48."Doubly-magic character of 132Sn studied by electromagnetic moments of 133Sn".
L. V. Rodrı́guez, D. Balabanski, M. L. Bissell, K. Blaum, B. Cheal, G. De Gregorio, J. Ekman, R. F. Garcia Ruiz et al.
Phys. Rev. C 102, 051301(R) (2020).
37. "High-precision multi-photon ionization of accelerated laser-ablated species"
R.F. Garcia Ruiz, A.R. Vernon, C.L. Binnersley, B.K. Sahoo, J. Billowes, T.E. Cocolios, W. Gins, R.P. de Groote,
K.T. Flanagan, A. Koszorus, K.M. Lynch, G. Neyens, C. Ricketts, S.G. Wilkins, and X.F. Yang.
Physical Review X 8, 041005 (2018).
See Viewpoint: Resonant Ionization Spectroscopy Technique Becomes Tabletop Friendly
36. “Radium ionization scheme development: The first observed autoionizing states and optical
pumping effects in the hot cavity environment”. T. Day Goodacre, J. Billowes, C.L. Binnersley, M.L. Bissell,
K. Chrysalidis, T.E. Cocolios, R.P. de Groote, G.J. Farooq-Smith, D.V. Fedorov, V.N. Fedosseev, K.T. Flanagan, S. Franchoo,
R.F. Garcia Ruiz, W. Gins, R. Heinke, Á. Koszorús, K.M. Lynch, B.A. Marsh, P.L. Molkanov, P. Naubereit, G. Neyens,
C. Ricketts, S. Rothe, C. Seiffert, M. Seliverstov, H. Stroke, D. Studer, A.R. Vernon, S.G. Wilkins, K. Wendt, X.F. Yang.
Spectrochimica Acta Part B: Atomic Spectroscopy 150, 99 (2018).
35. “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, 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. Nortershauser, T. Otsuka, J. Papuga, R. Sanchez, C. Wraith, L. Xie, and D.T. Yordanov.
Physical Review C 97, 044324 (2018).
34. “The nuclear magnetic moment of 208Bi and its relevance for a test of bound-state strong-field
QED”. S. Schmidt, J. Billowes, M.L. Bissell, K. Blaum, R.F. Garcia Ruiz, H. Heylen, S. Malbrunot-Ettenauer, G. Neyens,
W. Nörtershäuser, G. Plunien, S. Sailer, V.M. Shabaev, L.V. Skripnikov, I.I. Tupitsyn, A.V. Volotka, X.F. Yang.
Physics Letters B 779, 324 (2018).
33. “Laser-spectroscopy studies of the nuclear structure of neutron-rich radium”. K. M. Lynch, S. G.
Wilkins, J. Billowes, C. L. Binnersley, M. L. Bissell, K. Chrysalidis, T. E. Cocolios,5 T. Day Goodacre, R. P. de Groote, G. J.
Farooq-Smith, D. V. Fedorov, V. N. Fedosseev, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, W. Gins, R. Heinke, Á.
Koszorús, B. A. Marsh, P. Molkanov, P. Naubereit, G. Neyens, C. Ricketts, S. Rothe, C. Seiffert, M. Seliverstov, H. Stroke.
Physical Review C 97,024309 (2018).
32. “Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z=28 shell
closure near 78Ni”. R.P. De Groote, J. Billowes, C.L. Binnersley, M.L. Bissell, T. E. Cocolios, T. Day Goodacre,
G. James,, Á. Koszorús, K.M. Lynch, R.F. Garcia Ruiz, Farooq-Smith, D.V. Fedorov, K.T. Flanagan, S. Franchoo,
G. Neyens, F. Nowacki, T. Otsuka, S. Rothe, H.Stroke, Y. Tsunoda, A.R. Vernon, K. Wendt, S. Wilkins, Z. Xu, X. Yang
Physical Review C 96, 041302(R) (2017).
31. "Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers". C. Wraith, XF Yang,
L Xie, C Babcock, J. Bieroń, J Billowes, M.L. Bissell, K. Blaum, B. Cheal, L. W. Gins, L.K. Grob, G. Gaigalas,
M. Godefroid, C. Gorges, H. Heylen, R.F. Garcia Ruiz, 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.
Physics Letters B 771, 385 (2017).
30. “Probing the 31Ga ground-state properties in the region near Z=28 with high-resolution laser
spectroscopy”. G. James Farooq-Smith, A.R. Vernon, J. Billowes, C.L.. Binnersley, M.L. Bissell, T.E. Cocolios, T Day
Goodacre, RP De Groote, KT Flanagan, S Franchoo, R. F. Garcia Ruiz, Wouter Gins, KM Lynch, BA Marsh, G. Neyens,
S Rothe, HH Stroke, SG Wilkins, XF Yang.
Physical Review C 96, 044324 (2017).
29. “Quadrupole moment of 203 Fr”. S. G. Wilkins, K. M. Lynch, J. Billowes, C. L. Binnersley, M. L. Bissell,
T. E. Cocolios, T. Day Goodacre, R. P. de Groote, G. J. Farooq-Smith, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz,
W. Gins, H. Heylen, Á. Koszorús, G. Neyens, H. H. Stroke, A. R. Vernon, K. D. A. Wendt, and X. F. Yang.
Physical Review C 96, 034317 (2017).
28. “Developments of a sensitive setup for laser spectroscopy studies of 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, R. Neugart, G. Neyens, W. Nörtershäuser, D. T. Yordanov, X.Yang.
Journal Physics G 44, 044003 (2017).
27. “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. Nortershauser, T. Otsuka,
J. Papuga, R. Rossel, S. Rothe, R. Sanchez, Y. Tsunoda, C. Wraith, L. Xie, X.F. Yang, D.T. Yordanov.
Physical Review C 94, 054321 (2016).
26. “Laser and decay spectroscopy of the short-lived isotope 214Fr in the vicinity of the N = 126
shell closure”. G. J. Farooq-Smith, T. E. Cocolios, J. Billowes, M. L. Bissell, I. Budinčević, T. Day Goodacre, R. P. de
Groote, V. N. Fedosseev, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, H. Heylen, R. Li, K. M. Lynch, B. A. Marsh,
G. Neyens, R. E. Rossel, S. Rothe, H. H. Stroke, K. D. A. Wendt, S. G. Wilkins, and X. F. Yang.
Physical Review C 94, 054305 (2016).
25. "Unexpectedly large charge radii of neutron-rich calcium isotopes". R.F. Garcia Ruiz, M. Bissell,
K. Blaum, A. Ekström, N. Frömmgen, G. Hagen, M. Hammen, K. Hebeler, J. D. Holt, G. R. Jansen, M. Kowalska, K. Kreim,
J. Menendez, W. Nazarewicz, R. Neugart, G. Neyens, W. Nörtershäuser, T. Papenbrock, J. Papuga, A. Schwenk,
J. Simonis, K. A. Wendt, D. Yordanov.
Nature Physics 12, 594 (2016).
Featured in CERN Bulletin EP Newsletters ORNL News Phys.org Max Planck
UK News from CERN Science Alert
24. “Isomer Shift and Magnetic Moment of the Long-Lived 1/2+ Isomer in 79Zn: Signature of Shape
Coexistence near 78Ni”. X. F. Yang, C. Wraith, L. Xie, C. Babcock, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal,
W. Gins, C. Gorges, L. K. Grob, H. Heylen, S. Kaufmann, M. Kowalska, R. F. Garcia Ruiz, K. Flanagan, Kraemer,
S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, R. Sánchez, and D. T. Yordanov.
Physical Review Letters 116, 182502 (2016).
Editors' Suggestion
23. “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.
Physics Letters B 760, 387 (2016).
22. “High-resolution laser spectroscopy with the Collinear Resonance Ionisation Spectroscopy (CRIS)
experiment at CERN-ISOLDE”. T.E. Cocolios, R.P. de Groote, J. Billowes, M.L. Bissell, I. Budinčević, T. Day
Goodacre, G.J. Farooq-Smith, V.N. Fedosseev, K.T. Flanagan, S. Franchoo, R.F. Garcia Ruiz, W. Gins, H. Heylen,
T. Kron, R Li, K.M. Lynch, B.A. Marsh, G. Neyens, R.E. Rossel, S. Rothe, A.J. Smith, H.H. Stroke, K.D.A. Wendt, S.G.
Wilkins, X. Yang.
Nuclear Instruments and Methods in Physics Research Section B 376, 284 (2016).
21. “Combined high-resolution laser spectroscopy and nuclear decay spectroscopy for the study of
the low-lying states in Fr206, At202, and Bi198”. K. M. Lynch, T. E. Cocolios, J. Billowes, M. L. Bissell,
I. Budinčević, T. Day Goodacre, R. P. de Groote, G. J. Farooq-Smith, V. N. Fedosseev, K. T. Flanagan, S. Franchoo,
R. F. Garcia Ruiz, H. Heylen, R. Li, B. A. Marsh, G. Neyens, R. E. Rossel, S. Rothe, H. H. Stroke, K. D. A. Wendt,
S. G. Wilkins, and X. Yang.
Physical Review C 93, 014319 (2016).
20. “Versatile Ion-polarized Techniques On-line (VITO) experiment at ISOLDE-CERN”. M. Stachura,
A. Gottberg, K. Johnston, M.L. Bissell, R.F. Garcia Ruiz, J. Martins Correia, A.R. Granadeiro Costa, M. Dehn,
M. Deicher, A. Fenta, L. Hemmingsen, T.E. Mølholt, M. Munch, G. Neyens, S. Pallada, M.R. Silva, D. Zakoucky.
Nuclear Instruments and Methods in Physics Research Section B 376, 369 (2016).
19. “Ground-state electromagnetic moments of Calcium isotopes”. R.F. Garcia Ruiz, M. Bissell, K. Blaum,
N. Frommgen, M. Hammen, J. D. Holt, M. Kowalska, K. Kreim, J. Menendez, R. Neugart, G. Neyens, W. Nörtershäuser,
J. Papuga, A. Schwenk, J. Simonis, D. Yordanov.
Physical Review C 91, 041304(R) (2015).
18. “Use of a Continuous Wave Laser and Pockels Cell for Sensitive High-Resolution Collinear
Resonance Ionization Spectroscopy”. R.P. de Groote, I. Budinčević, J. Billowes, M.L. Bissell, T.E. Cocolios,
G.J. Farooq-Smith, V.N. Fedosseev, K.T. Flanagan, S. Franchoo, R.F. Garcia Ruiz, H. Heylen, R. Li, K.M. Lynch,
B.A. Marsh, G. Neyens, R.E. Rossel, S. Rothe, H.H. Stroke, K.D.A. Wendt, S.G. Wilkins, X. Yang.
Physical Review Letters 115, 132501 (2015).
17. "Perspectives for the VITO beam line at ISOLDE, CERN". R.F. Garcia Ruiz, M. Bissell, A. Gottberg ,
M. Stachura, L. Hemmingsen, G. Neyens, N. Severijns, and the VITO Collaboration.
EPJ Web of Conferences 93, 07004 (2015).
16. “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, D. T. Yordanov.
Physical Review C 92, 044311 (2015).
15. “Evidence for Increased neutron and proton excitations between 51-63Mn”. C Babcock, H Heylen,
J Billowes, ML Bissell, K Blaum, P Campbell, B Cheal, R.F Garcia Ruiz, C Geppert, W Gins, M Kowalska, K Kreim,
S. M. Lenzi, ID Moore, R Neugart, G Neyens, W Nörtershäuser, J Papuga, DT Yordanov.
Physics Letters B 750,176 (2015).
14. “Recent direct reaction experimental studies with radioactive tin beams”. K.L. Jones et al.
Acta Physica Polonica B 45, 537 (2015).
13. “Collinear Laser Spectroscopy on Neutron-rich Mn Isotopes Approaching N = 40”. H. Heylen,
Babcock, J. Billowes, M.L. Bissell,K. Blaum, P. Campbell, B. Cheal, R.F. Garcia Ruiz, Ch. Geppert, W. Gins, K. Kreim,
I.D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, J. Papuga, D.T. Yordanov.
47. "Precision measurements of the charge radii of potassium isotopes" Á. Koszorús, X.F. Yang, J. Billowes, C. Binnersley, M. Bissell, T. Cocolios, G. Farooq-Smith, R. P. de Groote, G. Farooq-Smith, K. Flanagan, S. Franchoo,
R.F. Garcia Ruiz, S. Geldhof, W. Gins, A. Kanellakopoulos, K.M. Lynch, G. Neyens, H.H. Stroke, A.R. Vernon,
S.G. Wilkins, K.D.A. Wendt.
Physical Review C 100, 034304 (2019).
46."Nuclear charge radii of 62−80Zn and their dependence on cross-shell proton excitations"
L. Xie, X.F. Yang, C. Wraith, C. Babcock , J. Bieron, J. Billowes, M.L. Bissell,K. Blaum B. Cheal, L. Filippin, K.T. Flanagan,
R.F. Garcia Ruiz, W. Gins, G. Gaigalas, M. Godefroid, C. Gorges, .K. Grob, H. Heylen, 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
Physics Letters B 797, 134805 (2019).
45. "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, 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, D.T. Yordanov
Physical Review Letters 122, 192502 (2019).
Editors' Suggestion
See Viewpoint: Tin Gets Kinky
44. "First demonstration of Doppler-free 2-photon in-source laser spectroscopy at the ISOLDE-RILIS".
K. Chrysalidis, S. G. Wilkins, R. Heinke, A. Koszorus, R. De Groote, V.N. Fedosseev, B. Marsh, S. Rothe,
R.F. Garcia Ruiz, D. Studer, A. Vernon, K. Wendt
Nuclear Instruments and Methods in Physics Research Section B 463, 476 (2019).
43. "Resonance ionization schemes for high resolution and high efficiency studies of exotic nuclei at
the CRIS experiment". Á. Koszorús, J. Billowes, C. L. Binnersley, M.L. Bissell, T. E. Cocolios, B.S. Cooper, R. P. de
Groote, G.J. Farooq-Smith, V.N. Fedosseev, K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, W. Gins, K.M. Lynch,
G. Neyens, F. P. Gustafsson, C.Ricketts, H.H. Stroke, A. Vernon, S.G. Wilkins, X. F. Yang
Nuclear Instruments and Methods in Physics Research Section B 463, 398 (2019).
42. "Optimising the Collinear Resonance Ionisation Spectroscopy experiment at CERN-ISOLDE".
A.R. Vernon, R. P. de Groote, C.Ricketts, J. Billowes, C. L. Binnersley, T. E. Cocolios, B.S. Cooper, K. T. Flanagan,
R. F. Garcia Ruiz, W. Gins, Á. Koszorús, G. Neyens, F. P. Gustafsson, X. F. Yang
Nuclear Instruments and Methods in Physics Research Section B 463, 384 (2019).
41. "A compact linear Paul trap cooler buncher for CRIS". C.Ricketts, J. Billowes, C. L. Binnersley, T. E.
Cocolios, B.S. Cooper, R. P. de Groote, K. T. Flanagan, R. F. Garcia Ruiz, W. Gins, Á. Koszorús, G. Neyens, F. P.
Gustafsson, A. Vernon, S.G. Wilkins, X. F. Yang
Nuclear Instruments and Methods in Physics Research Section B, 375 (2019).
40. "A compact RFQ cooler buncher for CRIS experiments". B.S. Cooper, H. A. Perrett, C. M. Ricketts,
C.G. Edwards, K. T. Flanagan, J. Billowes, C. L. Binnersley, M. L. Bissell, T. E. Cocolios, R. F. Garcia Ruiz,
R. P. de Groote, G. J. Farooq-Smith, W. Gins, A. Koszorus, G. Neyens, F. P-Gustafsson, H. H. Stroke, A. R. Vernon, K. D.
A. Wendt, S. G. Wilkins, X. F. Yang
Hyperfine Interactions 240, 52 (2019).
39. "A new beamline for laser spin-polarization at ISOLDE". W. Gins, R. Harding, M. Baranowski, M. Bissell,
R.F. Garcia Ruiz, M. Kowalska, G. Neyens, S. Pallada, N. Severijns, Ph. Velten, F. Wienholtz, X. Yang, D. Zakaucky.
Nuclear Instruments and Methods in Physics Research Section B 925, 24 (2019).
38. "Simulation of the relative atomic populations of elements 1 ≤ Z ≤89 following charge
exchange tested with collinear resonance ionization spectroscopy of indium". A.R. Vernon, J.Billowes,
C.L. Binnersley, M.L.Bissell, T.E. Cocolios, G.J. Farooq-Smith, K.T. Flanagan, R.F. Garcia Ruiz, W. Gins, R.P. de Groote,
Á. Koszorús, K.M. Lynch, G. Neyens, C.M. Ricketts, K.D.A. Wendt, S. G. Wilkins, X.F. Yang.
Spectrochimica Acta Part B: Atomic Spectroscopy 153, 61 (2019)
12. “Proton-Neutron Pairing Correlations in the Self-Conjugate Nucleus 38 K 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. Yordanov.
Physical Review Letters 113 052502 (2014).
11. “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. Nortershauser, M. M. Rajabali, R. Sanchez, N. Smirnova, V. Soma, D. T. Yordanov.
Physical Review C 90, 034321 (2014).
10. "Billion-Fold Enhancement in Sensitivity of Nuclear Magnetic Resonance Spectroscopy for
Magnesium Ions in Solution". A. Gottberg, M. Stachura, M. Kowalsa, 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 Communications 15, 3929 (2014).
9. “Laser spectroscopy of francium isotopes at the borders of the region of reflection asymmetry”.
I. Budinčević, J. Billowes, M. L. Bissell, T. E. Cocolios, R. P. de Groote, S. De Schepper, V. N. Fedosseev, K. T. Flanagan,
S. Franchoo, R. F. Garcia Ruiz, H. Heylen, K. M. Lynch, B. A. Marsh,G. Neyens, T. J. Procter, R. E. Rossel, S. Rothe,
I. Strashnov, H. H. Stroke, K. D. A. Wendt.
8. “First results from the CRIS experiment”. K. T. Flanagan, J. Billowes, M. L. Bissell, I. Budinčević, T. E. Cocolios,
R. P. de Groote, S. De Schepper, V. N. Fedosseev, S. Franchoo, R. F. Garcia Ruiz, H. Heylen, K. M. Lynch, B. A.
Marsh, G. Neyens, T. J. Procter, R. E. Rossel, S. Rothe, I. Strashnov, H. H. Stroke, K. D. A. Wendt.
Hyperfine Interactions 227, 131 (2014).
7. “Decay-assisted laser spectroscopy of Neutron-Deficient Francium”. K. M. Lynch, J. Billowes, M. L. Bissell,
I. Budinčević, T. E. Cocolios, R. P. De Groote, S. De Schepper, V. N. Fedosseev, K. T. Flanagan, S. Franchoo,
R.F. Garcia Ruiz, H. Heylen, B. A. Marsh, G. Neyens, T. J. Procter, R. E. Rossel, S. Rothe, I. Strashnov, H. H. Stroke,
K.D.A. Wendt.
Physical Review X 4, 011055 (2014).
See Synopsis: Picking Nuclei with Lasers
6. “The Collinear Resonance Ionization Spectroscopy (CRIS) experimental setup at CERN-
ISOLDE”. T. E. Cocolios, H. H. Al Suradi, J. Billowes, I. Budinčević, R. P. de Groote, S. De Schepper, V. N. Fedosseev,
K. T. Flanagan, S. Franchoo, R. F. Garcia Ruiz, R. E. Rossel, S. Rothe, G. S. Simpson, A. J. Smith, I. Strashnov,
H. H. Stroke, D. Verney, P. M. Walker, K. D. A. Wendt, R. T. Wood.
Nuclear Instruments and Methods in Physics Research Section B 317, 565 (2013).
5. “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.
Physics Letters B. 10, 731 (2013).
4. "CRIS: A new method in isomeric beam production”. K.M. Lynch, J. Billowes, M.L. Bissell, I. Budincevic, T.E.
Cocolios, R.P. De Groote, S. De Schepper, V.N. Fedosseev, K.T. Flanagan, S. Franchoo, R.F. Garcia Ruiz, H. Heylen,
B.A. Marsh, P.J.R. Mason, G. Neyens, T.J. Procter, R.E. Rossel, S. Rothe, G.S. Simpson, A.J. Smith, I. Strashnov, H.H.
Stroke, P.M. Walker, K.D.A. Wendt and R.T. Wood.
EPJ Web of Conferences, 63 01007 (2013).
3. "Collinear resonance ionization spectroscopy of neutron-deficient francium isotopes”. K.T. Flanagan,
K.M Lynch, J Billowes, M L Bissell, I Budinčević, T E Cocolios, R P de Groote, S De Schepper, V N Fedosseev, S Franchoo,
R.F. Garcia Ruiz, H.Heylen, B.A Marsh, G Neyens, T.J Procter, R E Rossel, S Rothe, I Strashnov, H.H Stroke, K. Wendt.
Physical Review Letters 111, 212501 (2013).
2. "Spins and Magnetic Moments of 49K and 51K: Establishing the 1/2+ and 3/2+ Level Ordering
Beyond N=28". J. Papuga, M. Bissell, K. Kreim, K. Blaum, B. Brown, M. De Rydt, R.F. Garcia Ruiz, H. Heylen, M.
Kowalska, R. Neugart, G. Neyens, W. Nortershauser, T. Otsuka, M. Rajabali, R. Sanchez, Y. Utsuno, D. Yordanov.
Physical Review Letters, 110, 172503 (2013).
1. "On the use of Extreme Value Theory in analyses of continuum gamma decay".
F. Garcia Ruiz, F. Cristancho.
