Publications (11)
Precision masses of neutron-rich platinum and gold nuclei reveal enhanced shell strength below doubly-magic Pb
David Freire-Fernández, Rui-Jiu Chen, Usama Ahmed +63
The heaviest stable nuclei in the universe owe their existence to quantum shell structure, the grouping of protons and neutrons into discrete energy levels separated by gaps. The l…
Coulomb dissociation of N
Marko Röder, Tatsuya Adachi, Yulia Aksyutina +120
Neutron-rich light nuclei and their reactions play an important role for the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N are rep…
Feasibility Study of Observing eta' Mesic Nuclei with (p,d) Reaction
Kenta Itahashi, Hiroyuki Fujioka, Hans Geissel +13
A novel method is proposed to measure eta'(958) meson bound states in 11C nuclei by missing mass spectroscopy of the 12C(p,d) reaction near the eta' production threshold. It is sho…
Separation of atomic and molecular ions by ion mobility with an RF carpet
Ivan Miskun, Timo Dickel, Samuel Ayet San Andres +16
Gas-filled stopping cells are used at accelerator laboratories for the thermalization of high-energy radioactive ion beams. Common challenges of many stopping cells are a high mole…
Mean range bunching of exotic nuclei produced by in-flight fragmentation and fission -- Stopped-beam experiments with increased efficiency
Timo Dickel, Christine Hornung, Daler Amanbayev +24
The novel technique of mean range bunching has been developed and applied at the projectile fragment separator FRS at GSI in four experiments of the FAIR phase-0 experimental progr…
Studying Gamow-Teller transitions and the assignment of isomeric and ground states at
Ali Mollaebrahimi, Christine Hornung, Timo Dickel +50
Direct mass measurements of neutron-deficient nuclides around the shell closure below Sn were performed at the FRS Ion Catcher (FRS-IC) at GSI, Germany. The nuclei w…
A Novel Method for the Measurement of Half-Lives and Decay Branching Ratios of Exotic Nuclei
Ivan Miskun, Timo Dickel, Israel Mardor +28
A novel method for simultaneous measurement of masses, Q-values, isomer excitation energies, half-lives and decay branching ratios of exotic nuclei has been demonstrated. The metho…
Chiral symmetry restoration at high matter density observed in pionic atoms
Takahiro Nishi, Kenta Itahashi, DeukSoon Ahn +45
Modern theories of physics tell that the vacuum is not an empty space. Hidden in the vacuum is a structure of anti-quarks and quarks . The and pair has t…
Spectroscopy of eta'-nucleus bound states at GSI-SIS
Hiroyuki Fujioka, Kenta Itahashi, Hans Geissel +14
The eta' meson mass may be reduced due to partial restoration of chiral symmetry. If this is the case, an eta'-nucleus system may form a nuclear bound state. We plan to carry out a…
Spectroscopy of eta' mesic nuclei with (p,d) reaction
Yoshiki K. Tanaka, Stefan Friedrich, Hiroyuki Fujioka +15
We are going to perform an inclusive spectroscopy experiment of eta' mesic nuclei with the 12C(p,d) reaction to study in-medium properties of the eta' meson. In nuclear medium, the…
First Measurement of the Ru(p,)Rh Cross Section for the p-Process with a Storage Ring
Bo Mei, Thomas Aumann, Shawn Bishop +44
This work presents a direct measurement of the Ru()Rh cross section via a novel technique using a storage ring, which opens opportunities for reaction measurem…