J
J. Simonis
Researcher at Technische Universität Darmstadt
Publications - 30
Citations - 1807
J. Simonis is an academic researcher from Technische Universität Darmstadt. The author has contributed to research in topics: Neutron & Dipole. The author has an hindex of 15, co-authored 27 publications receiving 1485 citations. Previous affiliations of J. Simonis include University of Tennessee & GSI Helmholtz Centre for Heavy Ion Research.
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Journal ArticleDOI
Masses of exotic calcium isotopes pin down nuclear forces
Frank Wienholtz,D. Beck,Klaus Blaum,Ch. Borgmann,M. Breitenfeldt,R. B. Cakirli,R. B. Cakirli,Sebastian George,Frank Herfurth,Jason D. Holt,Magda Kowalska,Susanne Kreim,Susanne Kreim,D. Lunney,Vladimir Manea,Javier Fernandez Menendez,D. Neidherr,Marco Rosenbusch,Lutz Schweikhard,Achim Schwenk,J. Simonis,J. Stanja,Robert Wolf,Kai Zuber +23 more
TL;DR: The mass determination of the exotic calcium isotopes 53Ca and 54Ca is reported, using the multi-reflection time-of-flight mass spectrometer of ISOLTRAP at CERN, to establish a prominent shell closure at neutron number N = 32, in excellent agreement with the theoretical calculations.
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Neutron and weak-charge distributions of the 48Ca nucleus
Gaute Hagen,Gaute Hagen,Andreas Ekström,Andreas Ekström,Christian Forssén,Christian Forssén,Christian Forssén,Gustav R. Jansen,Gustav R. Jansen,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Thomas Papenbrock,Thomas Papenbrock,K. A. Wendt,K. A. Wendt,Sonia Bacca,Sonia Bacca,Nir Barnea,B. D. Carlsson,C. Drischler,Kai Hebeler,Morten Hjorth-Jensen,Morten Hjorth-Jensen,Mirko Miorelli,Mirko Miorelli,Giuseppina Orlandini,Giuseppina Orlandini,Achim Schwenk,J. Simonis +29 more
TL;DR: In this article, an ab initio calculation of the neutron distribution of the Neutron-rich nucleus Ca-48 is presented, and it is shown that the difference between the radii of the neutrons and proton distributions is significantly smaller than previously thought.
Journal ArticleDOI
Unexpectedly large charge radii of neutron-rich calcium isotopes
R. F. Garcia Ruiz,Mark Bissell,Mark Bissell,Klaus Blaum,Andreas Ekström,Andreas Ekström,N. Frömmgen,Gaute Hagen,M. Hammen,Kai Hebeler,Jason D. Holt,Gustav R. Jansen,Gustav R. Jansen,Magda Kowalska,K. Kreim,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Rainer Neugart,Gerda Neyens,Wilfried Nörtershäuser,Wilfried Nörtershäuser,Thomas Papenbrock,Thomas Papenbrock,J. Papuga,Achim Schwenk,Achim Schwenk,J. Simonis,Klaus Wendt,Klaus Wendt,Deyan T. Yordanov,Deyan T. Yordanov +31 more
TL;DR: In this article, the authors present the first measurements of the charge radii of 49,51,52Ca, obtained from laser spectroscopy experiments at ISOLDE, CERN.
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Structure of the Lightest Tin Isotopes
T. D. Morris,J. Simonis,S. R. Stroberg,Christina Stumpf,Gaute Hagen,Jason D. Holt,Gustav R. Jansen,Thomas Papenbrock,Robert Roth,Achim Schwenk,Achim Schwenk +10 more
TL;DR: The results indicate that ^{100}Sn is doubly magic, and the quadrupole collectivity is predicted, and precise computations of ^{101}Sn based on three-particle-two-hole excitations are presented.
Journal ArticleDOI
Saturation with chiral interactions and consequences for finite nuclei
TL;DR: In this article, the authors explore the impact of nuclear matter saturation on the properties and systematics of finite nuclei across the nuclear chart using the ab initio in-medium similarity renormalization group (IM-SRG).