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Featured researches published by T. Shizuma.


International Journal of Modern Physics E-nuclear Physics | 2009

Isomeric decay studies in neutron-rich N ≈ 126 nuclei

S. J. Steer; Zs. Podolyák; S. Pietri; M. Górska; G. F. Farrelly; P. H. Regan; Dirk Rudolph; A. B. Garnsworthy; R. Hoischen; J. Gerl; H. J. Wollersheim; H. Grawe; K. H. Maier; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Grbosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tashenov; A. Heinz; T. Kurtukian-Nieto; G. Benzoni

Heavy neutron-rich nuclei were populated via relativistic energy fragmentation of a E/A = 1 GeV208Pb beam. The nuclei of interest were selected and identified by a fragment separator and then implanted in a passive plastic stopper. Delayed γ rays following internal isomeric decays were detected by the RISING array. Experimental information was obtained on a number of nuclei with Z = 73-80 (Ta-Hg), providing new information both on the prolate-oblate transitional region as well as on the N = 126 closed shell nuclei.


Journal of Physics G | 2008

Gamow–Teller transitions in exotic pf-shell nuclei relevant to supernova explosion

Y. Fujita; B. Rubio; Tatsuya Adachi; F. Molina; A. Algora; G.P.A. Berg; P. von Brentano; J. Büscher; T. E. Cocolios; D. De Frenne; Charles H. J. M. Fransen; H. Fujita; K Fujita; W. Gelletly; K. Hatanaka; M. Huyse; O. Ivanov; Yu. Kudryavtsev; E. Jacobs; D. Jordan; K. Nakanishi; A. Negret; D. Pauwels; A.B. Perez-Cerdan; N. Pietralla; Zs. Podolyák; L. Popescu; R. Raabe; Y. Sakemi; M. Sawicka

Gamow–Teller (GT) transitions starting from unstable pf-shell nuclei are of interest not only in nuclear physics, but also in astrophysics, e.g. in violent neutrino induced reactions at the core-collapse stage of type II supernovae. In the β-decay study of these pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz = ±1 → 0 analogous GT transitions, we present a unique merged analysis for the determination of absolute B(GT) values.


Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2007

Recent results in fragmentation isomer spectroscopy with rising

S. Pietri; P. H. Regan; Zs. Podolyák; Dirk Rudolph; S. J. Steer; A. B. Garnsworthy; E. Werner-Malento; R. Hoischen; M. Gorska; J. Gerl; H. J. Wollersheim; I. Kojouharov; H. Schaffner; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Grebosz; A. Kelic; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; S. Tashenov; A. Heinz; M. Pfützner; T. Kurtukian-Nieto; G. Benzoni; M. Hellström


Physical Review C | 2008

Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

S. J. Steer; Zs. Podolyák; S. Pietri; M. Górska; P. H. Regan; Dirk Rudolph; E. Werner-Malento; A. B. Garnsworthy; R. Hoischen; J. Gerl; H. J. Wollersheim; K. H. Maier; H. Grawe; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Greabosz; A. Kelic; I. Kojouharov; Nikolaus Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tashenov; A. Heinz; M. Pfuetzner; T. Kurtukian-Nieto


Nuclear Physics | 2007

Isomer Spectroscopy Using Relativistic Projectile Fragmentation at the N=Z Line for A~80-90

P. H. Regan; A. B. Garnsworthy; S. Pietri; L. Caceres; M. Gorska; Dirk Rudolph; Zs. Podolyák; S. J. Steer; R. Hoischen; J. Gerl; H. J. Wollersheim; J. Grebosz; H. Schaffner; W. Prokopwicz; I. Kojouharov; F. Becker; P. Bednarczyk; P. Doornenball; H. Geissel; H. Grawe; A. Kelic; N. Kurz; F. Montes; T. Saito; S. Tashenov; E. Werner-Malento; A. Heinz; L. Atanasova; D. Balabanski; G. Benzoni


Physics Letters B | 2008

Neutron-proton pairing competition in N = Z nuclei: Metastable state decays in the proton dripline nuclei Nb-82(41) and Tc-86(43)

A. B. Garnsworthy; P. H. Regan; L. Caceres; S. Pietri; Yang Sun; Dirk Rudolph; M. Gorska; Zs. Podolyák; S. J. Steer; R. Hoischen; A. Heinz; F. Becker; P. Bednarczyk; P. Doornenbal; H. Geissel; J. Gerl; H. Grawe; J. Grȩbosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tachenov; E. Werner-Malento; H. J. Wollersheim; G. Benzoni; B. Blank


Physical Review C | 2009

Isomeric states in neutron-deficient A ∼ 80-90 nuclei populated in the fragmentation of 107Ag

A. B. Garnsworthy; P. H. Regan; S. Pietri; Y. Sun; F. R. Xu; Dirk Rudolph; M. Górska; L. Caceres; Zs. Podolyák; S. J. Steer; R. Hoischen; A. Heinz; F. Becker; P. Bednarczyk; P. Doornenbal; H. Geissel; J. Gerl; H. Grawe; J. Grebosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopwicz; T. Saito; H. Schaffner; S. Tachenov; E. Werner-Malento; H. J. Wollersheim; G. Benzoni


European Physical Journal A | 2009

Structure of neutron-rich nuclei around the N = 126 closed shell; the yrast structure of 205Au126 up to spin-parity \(I^{\pi}\) = (19/2+)

Zs. Podolyák; S. J. Steer; S. Pietri; M. Górska; P. H. Regan; Dirk Rudolph; A. B. Garnsworthy; R. Hoischen; J. Gerl; H. J. Wollersheim; H. Grawe; K. H. Maier; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Grebosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tashenov; A. Heinz; T. Kurtukian-Nieto; G. Benzoni; M. Pfützner


European Physical Journal-special Topics | 2007

Exciting Isomers from the First Stopped-beam RISING Campaign

Dirk Rudolph; S. Pietri; Zs. Podolyák; P. H. Regan; A. B. Garnsworthy; R. Hoischen; S. J. Steer; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Gerl; M. Gorska; J. Grebosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tashenov; E. Werner-Malento; H. J. Wollersheim; Lise-Lotte Andersson; L. Atanasova; D. L. Balabanski; M. A. Bentley; G. Benzoni


Acta Physica Polonica B | 2007

Isomeric states in the light Tc isotopes

A. B. Garnsworthy; P. H. Regan; S. Pietri; Dirk Rudolph; L. Caceres; M. Górska; Zs. Podolyák; S. J. Steer; A. Heinz; F. Becker; P. Bednarczyk; P. Doornenbal; H. Geissel; J. Gerl; H. Grawe; J. Grebosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopwicz; T. Saito; H. Schaffner; S. Tachenov; E. Werner-Malento; H. J. Wollersheim; G. Benzoni; B. Blank; C. Brandau; A. M. Bruce

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L. Caceres

Autonomous University of Madrid

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A. Heinz

Chalmers University of Technology

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A. Kelic

GSI Helmholtz Centre for Heavy Ion Research

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