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Acronym: CONDALPHA
Contracting Authority: Executive Agency for Higher Education, Research, Development and Innovation Funding (UEFISCDI)
Number / Date of the contract: 267 / 01.10.2007
Idei
Project Manager: Adriana Raduta
Partners:
Starting date / finishing date: 2007-10-01 / 2010-09-30
Project value: 1 000 000 RON
Abstract: Nuclear structure in the stability valley is dominated by the mean field concept where neutrons and protons create their own potential and the most appropriate description is offered by the shell model. Near the drip line, the low binding energy allows molecular-like structures. Recent theoretical works predict in the case of self-conjugated 4n nuclei with excitation energies around the 4n decay threshold and symmetric diluted nuclear matter bose condensation of alpha particles, that is, a new phase of nuclear matter. We aim to investigate the alpha particle bose condensate nature of excited quasiprojectiles obtained in the nuclear reactions 36ar+58ni with beam energies of 32, 52 and 95 mev/nucleon rnd 40ca+12c with beam energy 25 mev/nucleon. The first system was measured in Ganil, Caen (France) using the indra 4pi detector; the second system was measured at lns-catania (Italy) using the chimera 4pi detector.
We shall select the bose condensate candidate events, test the simultaneity degree of the decay process, restore the emitting sources properties, characterize them using especially designed multiparticle correlation functions. Numerical simulations will be used to estimate possible distorsions caused by imperfect detection. We stress that the useof heavy-ion reactions at several tens mev/nucleon incident energy and 4pi detectors. Previously developed for nuclear multifragmentation in order to study the Nuclear structure in excited states is a world premiere. Our participation to such a study and access to experimental data are possible due to a long collaboration with the authors of both experiments.
Once experimentally evidenced, the bose condensation of nuclear matter will be one of the most remarkable achievements of the last decades.

Objectives:

THE STAGES OF THE PROJECT AND DELIVERY DATES
RESULTS
PUBLISHED ARTICLES
RESEARCH TEAM


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