http://popups.lib.uliege.be/1373-5411/index.php?id=2380 Publications of Auteurs Domitian G. Popescu fr 0 http://popups.lib.uliege.be/1373-5411/index.php?id=4680 We introduced, two years ago (Popescu, 2007), a new model of the atomic nucleus, the DNA nuclear-model, where the neutrons and the protons with their spin up and down seem to be the equivalents of the four bases of the DNA life molecule : Adenine (A), Thymine (T), Cytosine (C) and Guanine (G). The four elements : p↑, p↓, n↑, n↓ are bound in a chain, a close loop. With this model we succeeded to explain nuclear phenomena like : alpha radioactivity, fission or fusion. Our present work goes further by considering the quark (anti quark) structure of the nucleons : protons, neutrons, or of the quanta (quark antiquark) of the nuclear field interaction : the pion. We suggest that the atomic nucleus is a loop chain of the quarks (real or virtual antiquark). Mon, 14 Oct 2024 16:21:29 +0200 Mon, 14 Oct 2024 16:21:36 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=4680 http://popups.lib.uliege.be/1373-5411/index.php?id=4668 In the last three decades more than one hundred of new isotopes with Z > 103 have been discovered in cold fusion reactions with Heavy Ions, with the dream to reach the Super Heavy Nuclear Island. This Island was theoretical predicted in the seventies to be situated around Z=ll4 and N=184. The fusion cross sections in reactions with 48Ca on heavy targets are of the order of the pico barn, it means a few months of experiment for few events, in the normal experiments with the actual accelerators intensities and targets. New ideas can be proposed : collision between two heavy nuclei with high spin ground state or the combination of the heavy nuclei with high spin isomer. These high spins states can stabilise the double nuclear system and rise the chance to go into fusion. We suggest to use the advantage of High Spin Isomer States, by taking into account the importance of the quantum number G (spin – isospin coupling) suggested by Ripka (2008). The 178Hf 2m (2m means second isomer, I=16h, 3l years life time) is an interesting nucleus. In this article we propose to use this isomer as a target (projectile) for production of SHE. More, we suggest other high spin targets projectile combination like : 117Sn(I=11/2 , 14d) + 176Lu (I=7 , 38Gy) → 293121 Mon, 14 Oct 2024 16:03:52 +0200 Mon, 14 Oct 2024 16:03:59 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=4668 http://popups.lib.uliege.be/1373-5411/index.php?id=3895 Atomic Nucleus stability is discussed in terms of its Binding Energy (BE). New insights in understanding many Nucleus properties like limit of stability are obtained. BE generalized to the structured objects give some hints to find origin of the missing mass (dark matter). The very new CHAIN Model of the nucleus is confronted with the classical mass formula. Some ideas for studies of Super Heavy Elements (SHE) related to the role of high spin states and their importance in binding energy calculation are presented. Tue, 01 Oct 2024 11:27:27 +0200 Tue, 01 Oct 2024 11:27:35 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=3895 http://popups.lib.uliege.be/1373-5411/index.php?id=3105 The nucleus is made with nuclear matter. This nuclear matter apparently looks like a gas, a Thomas-Fermi gas, or like a liquid drop Bohr, or like a solid (for the nuclei decaying through super deformed bands of gamma rays). We try to understand these apparent forms of nuclear matter through: the cumulative interaction in the nuclei (a three body nuclear special interaction) and by using the Heisenberg transformation (based on the uncertainty principle on energy and time of the nuclear matter). These cumulative interactions can transform the "gas" nuclei or the "liquid" nuclei or "solid" nuclei in nuclear matter. For a short interval of time, we imagine a Heisenberg partial or total dissolution (transformation)of the nucleus in a "solid" or a "liquid" or a "gas" nucleus. The free nucleons will condense through the cumulative interactions and will reconstruct the quantum structure of the nucleus. These many different states of the bi- or tri- nuclear phases are the mesomeres states of the nucleus with the given total energy, angular momentum, etc. Through these mesomeres states we try to understand the stability of the nucleus in terms of their maximum number. The Heisenberg partial or total dissolution of the nucleus followed by a partial or total quantum reconstruction are an oscillatory movement from chaos (disorder) to the order going through mesomeres states. More are their number bigger is the stability and to the lifetime of the nucleus. A theoretical approach to the mesomeres states can follow the Strutinsky recipe, where the quantum Shell Model correction simulates Heisenberg dissolution process. Mon, 09 Sep 2024 09:03:20 +0200 Mon, 09 Sep 2024 09:03:29 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=3105 http://popups.lib.uliege.be/1373-5411/index.php?id=2379 The energy of the cosmic rays, recently measured with thousands of coincident detectors in different laboratories of the wodd, can reach unusual values like: tenth or hundreds of TeV. Since an human accelerator (or space, galactic one) was not imagined up to now to verify different hypothesis, we try to explain this accumulation of this enormous amount of energy in the one small particle by a possible cumulative interaction. This kind of interactions are also observed in the heavy ions nuclear reaction when light particles, protons, alphas, etc., are emitted with the energies near kinematics limit. The cumulative interaction seems to have an probabilistic character. In this contribution we try to understand the relation between the gravitational interaction and the cumulative interaction. Fri, 02 Aug 2024 14:45:17 +0200 Fri, 02 Aug 2024 14:45:25 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=2379 http://popups.lib.uliege.be/1373-5411/index.php?id=1763 The Heavy Ion collision give in final many different products. Recent experimental data (which confirm older ones) suggests the existence in the reaction of particles emitted with energy close to kinematics limit (Particles Near Kinematics Limit PNKL). We are able to interpret this "strange" part of the spectra in terms of new fusion mechanism for heavy ion fusion reactions. The probability of emission of PNLK is related to the first stage of the reaction. The properties of first moments of the live of the new fused object are inferred from the general principles. Tue, 16 Jul 2024 15:18:26 +0200 Thu, 10 Oct 2024 16:26:15 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=1763 http://popups.lib.uliege.be/1373-5411/index.php?id=1732 We propose a new mechanism in nuclear reactions where fusion is accompanied by light particle emission (in the early stage of nuclear reaction), decay by multi fragmentation or fission of the fused system. This mechanism was suggested by the existing experimental data obtained in nuclear reactions for fission, deep inelastic transfer, fusion, compound nucleus decay, gamma spectroscopy multi fragmentation, etc. We want only, by an iterative procedure, obtain new and more insights for collective nuclear forces, or new properties of nuclear matter and finally for the nuclear forces. We underline some of nuclear reactions characteristics, and based on these experimental evidences we give two postulates which define the nuclear interaction between two heavy ions (two pieces of nuclear matter). With these two axioms, we are able to understand in a frame of the new reaction mechanism, the experimental data obtained in nuclear reactions induced by heavy ions like : subcoulombian (subbarrier) fusion, superdeformation, fire balls, nuclear deformation in spectroscopy studies, deep inelastic reactions, etc. We mention that all of our efforts is to make a separate analysis, as much as it is possible, for nuclear forces, pure nuclear one. The superposition of "the well known electromagnetic interaction" with nuclear interaction one may not be a simply addition of the two fields (of different nature). Tue, 16 Jul 2024 14:29:15 +0200 Thu, 10 Oct 2024 16:26:37 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=1732