Objetivo
We propose to study in-medium modifications of hadron properties as well as time-like electromagnetic form factors of hadrons, exploiting heavy ion and pion-beams from the SIS accelerator of GSI, Darmstadt and the HADES dilepton spectrometer currently under construction at GSI.
Among the proposed experiments the search for vector meson modifications in compressed hadronic matter and the study of recoilless production of omega-mesons are particularly attractive. Studying the medium mass modifications of mesons in nuclei opens up the possibility to observe prrsor phenomena of chiral symmetry restoration in nuclear matter. Chiral symmetry is a fundamental symmetry of Quantum Chromo Dynamics spontaneously broken in free space. Major medium modifications are expected at elevated nuclear densities which can be transiently reached in central heavy ion collisions only. Studying the vector meson production at rest in nuclei is not affected from short life times of the medium and gains from low background.
We here apply for funds for extensions of existing (or presently being constructed) systems necessary to conduct the full experimental program outlined above. The funds are supposed for the support of Russian institutes and will enable Russian scientists to join existing European collaborations and contribute to the research in a competitive way.
The proposed experiments incorporate state-of-the-art technologies with a potential for technology transfer between the research institutes as well as with industry. The European-wide collaboration as well as the ambitious research field forms an excellent basis for academic education of students and young research fellows including performance of master and doctoral thesis works in frontier fields.
The publication policy of the collaboration follows traditional lines of basic research: The experimental and technical results will be distributed in internal collaboration reports, presented in seminars and collaboration workshops as well as in international schools and conferences. Final results will be mitted to international refereed journals.
Tema(s)
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64291 Darmstadt
Alemania