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{\Large \bf  Nuclear Theory Group}\\

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Professor           &:&Noboru Takigawa\\
Assistant Professor&:&Masahiro Maruyama, Akira~Ono and Takashi Nakatsukasa \\
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(http://www.nucl.phys.tohoku.ac.jp/)\\
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Nuclei and hadrons are quantum many-body systems made of finite number of
nucleons and mesons which are also composite particles
consisting of quarks and gluons.
They are self-bound by the strong interaction.
Although the strong interaction is known to be described by
the quantum chromodynamics (QCD), even the dynamics of a single hadron
has not been fully understood because of its strong non-perturbative
nature in the low energy region.
One of the challenging and interesting subjects
in theoretical nuclear physics is to explore non-perturbative 
properties of strongly-interacting systems.
Since the first-principle calculation is extremely difficult,
number of models and/or approximations are used based on
relativistic/non-relativistic quantum mechanics and quantum field theories.
A variety of pioneering works related to nuclear and hadronic
phenomena from low to high energies are being carried out
in this group.
Present major activities cover
heavy-ion reactions, 
nuclear fusion/fission, astrophysical nuclear reactions,
liquid-gas nuclear phase transitions, nuclei under high temperature/density, 
structure and reactions of unstable nuclei, 
high-spin states, superdeformed bands, superheavy elements,
quark-gluon plasma, color superconductivity, color confinement, 
QCD phase transition.
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