Quasifree scattering of electrons on light nuclei and some properties of nuclear interaction

2010 ◽  
Vol 41 (4) ◽  
pp. 531-542
Author(s):  
E. L. Kuplennikov ◽  
A. Yu. Korchin ◽  
S. S. Kandybei
Keyword(s):  
Nuclear Interaction ◽  
Light Nuclei

scholarly journals The search for the origin of the light nuclei Li, Be, B

2009 ◽  
Vol 5 (S268) ◽  
pp. 469-471
Author(s):  
Hubert Reeves
Keyword(s):  
Nuclear Interaction ◽  
Binding Energies ◽  
Light Nuclei ◽  
Major Influence ◽  
Magic Numbers ◽  
Light Elements ◽  
Closed Shells

AbstractMy aim is to show how the abundance ratios of the light elements (6 to 11) are related to the properties of the strong nuclear interaction and, in particular, to the major influence of closed shells of neutrons and protons, (the magic numbers : 2, 8, etc) on the binding energies of the nuclei.

scholarly journals Isospin Mixing in Light Nuclei

1978 ◽  
Vol 31 (1) ◽  
pp. 27 ◽  
Author(s):  
FC Barker
Keyword(s):  
Coulomb Interaction ◽  
Coulomb Force ◽  
Nuclear Interaction ◽  
Light Nuclei ◽  
Asymptotic Region ◽  
Matrix Elements ◽  
Mixing Matrix ◽  
A Charge ◽  
Coulomb Contribution

Isospin mixing matrix elements are calculated for several pairs of mixed T = 0 and 1 states in aBe, 12C and 160, using an extension of the method of Dalton and Robson (1966). This includes contributions due to differences between neutron and proton wavefunctions produced in the asymptotic region by the Coulomb force, as well as the internal Coulomb contribution. These cases provide no evidence for a charge-dependent nuclear interaction other than the Coulomb interaction.

scholarly journals TENSOR OPTIMIZED SHELL MODEL USING BARE INTERACTION FOR LIGHT NUCLEI

2010 ◽  
Vol 25 (21n23) ◽  
pp. 1985-1988
Author(s):  
TAKAYUKI MYO ◽  
HIROSHI TOKI ◽  
KIYOMI IKEDA
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Short Range ◽  
Operator Method ◽  
Nuclear Interaction ◽  
Light Nuclei ◽  
New Method ◽  
Correlation Operator ◽  
Bare Interaction ◽  
Short Range Correlations

We propose a new method to describe nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively.

TENSOR OPTIMIZED SHELL MODEL WITH UNITARY CORRELATION OPERATOR USING BARE INTERACTION FOR LIGHT NUCLEI

2009 ◽  
Vol 24 (11n13) ◽  
pp. 847-850
Author(s):  
TAKAYUKI MYO ◽  
HIROSHI TOKI ◽  
KIYOMI IKEDA
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Theoretical Approach ◽  
Short Range ◽  
Operator Method ◽  
Nuclear Interaction ◽  
Light Nuclei ◽  
Correlation Operator ◽  
Bare Interaction ◽  
Short Range Correlations

We propose a new theoretical approach to calculate nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively. We compare the obtained results using TOSM+UCOM for 4 He with the rigorous calculation.

Proposed Solutions to Achieve Nuclear Fusion

Engevista ◽  
2017 ◽  
Vol 19 (5) ◽  
pp. 1496
Author(s):  
Relly Victoria Virgil Petrescu ◽  
Raffaella Aversa ◽  
Antonio Apicella ◽  
Florian Ion Petrescu
Keyword(s):  
Nuclear Reactor ◽  
Nuclear Reactions ◽  
Nuclear Fusion ◽  
Nuclear Fission ◽  
Light Nuclei ◽  
Fast Neutrons ◽  
Fusion Reactions ◽  
Nuclear Fusion Reactions ◽  
The Masses ◽  
Fusion Products

Despite research carried out around the world since the 1950s, no industrial application of fusion to energy production has yet succeeded, apart from nuclear weapons with the H-bomb, since this application does not aims at containing and controlling the reaction produced. There are, however, some other less mediated uses, such as neutron generators. The fusion of light nuclei releases enormous amounts of energy from the attraction between the nucleons due to the strong interaction (nuclear binding energy). Fusion it is with nuclear fission one of the two main types of nuclear reactions applied. The mass of the new atom obtained by the fusion is less than the sum of the masses of the two light atoms. In the process of fusion, part of the mass is transformed into energy in its simplest form: heat. This loss is explained by the Einstein known formula E=mc2. Unlike nuclear fission, the fusion products themselves (mainly helium 4) are not radioactive, but when the reaction is used to emit fast neutrons, they can transform the nuclei that capture them into isotopes that some of them can be radioactive. In order to be able to start and to be maintained with the success the nuclear fusion reactions, it is first necessary to know all this reactions very well. This means that it is necessary to know both the main reactions that may take place in a nuclear reactor and their sense and effects. The main aim is to choose and coupling the most convenient reactions, forcing by technical means for their production in the reactor. Taking into account that there are a multitude of possible variants, it is necessary to consider in advance the solutions that we consider them optimal. The paper takes into account both variants of nuclear fusion, and cold and hot. For each variant will be mentioned the minimum necessary specifications.

Nuclear Electrons and Nuclear Structure

2018 ◽  
Author(s):  
Roger H. Stuewer
Keyword(s):  
Nuclear Structure ◽  
Beta Decay ◽  
Gamma Rays ◽  
Alpha Particle ◽  
Continuous Distribution ◽  
Alpha Particles ◽  
Light Nuclei ◽  
Coincidence Method ◽  
Wolfgang Pauli ◽  
Beta Particles

Serious contradictions to the existence of electrons in nuclei impinged in one way or another on the theory of beta decay and became acute when Charles Ellis and William Wooster proved, in an experimental tour de force in 1927, that beta particles are emitted from a radioactive nucleus with a continuous distribution of energies. Bohr concluded that energy is not conserved in the nucleus, an idea that Wolfgang Pauli vigorously opposed. Another puzzle arose in alpha-particle experiments. Walther Bothe and his co-workers used his coincidence method in 1928–30 and concluded that energetic gamma rays are produced when polonium alpha particles bombard beryllium and other light nuclei. That stimulated Frédéric Joliot and Irène Curie to carry out related experiments. These experimental results were thoroughly discussed at a conference that Enrico Fermi organized in Rome in October 1931, whose proceedings included the first publication of Pauli’s neutrino hypothesis.

scholarly journals Low Energy Antikaon-nucleon/nuclei interaction studies by AMADEUS

2019 ◽  
Vol 199 ◽  
pp. 01014
Author(s):  
K. Piscicchia ◽  
M. Bazzi ◽  
G. Belloti ◽  
A. M. Bragadireanu ◽  
D. Bosnar ◽  
...  
Keyword(s):  
Cross Sections ◽  
Transition Amplitude ◽  
Nuclear Interaction ◽  
Branching Ratios ◽  
Analysis Procedure ◽  
Low Energy ◽  
Carbon Target ◽  
Pure Carbon ◽  
Nuclear Targets ◽  
Mass Spectroscopic Study

The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K− interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K− absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 100 MeV) in-flight K− captures. With AMADEUS step 1 a dedicated pure Carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K− nuclear interaction. The first measurement of the non-resonant transition amplitude $\left| {{A_{{K^ - }n \to \Lambda {\pi ^ - }}}} \right|$ at $\sqrt s = 33\,MeV$ below the K̄N threshold is presented, in relation with the Λ(1405) properties studies. The analysis procedure adopted in the serarch for K− multi-nucleon absorption cross sections and Branching Ratios will be also described.

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