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Showing 1 to 20 of 44 for “"Nucleon-nucleon"”.
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Nucleon-Nucleon Spin Dependent Scattering Amplitudes to Describe Final State Interactions in Electromagnetic and Electroweak Nuclear Processes
… no models readily available that provide nucleon-nucleon spin dependent scattering amplitudes at high energies (<em> s</em> ≥ 6 GeV<sup>2)</sup>. This work aims to provide a model for calculating these high-energy scattering amplitudes. The foundation of the model is Regge theory since it …
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Suppression of High Transverse Momentum Charged Hadrons in Au+Au Collisions at 200 GeV Nucleon-Nucleon Center of Mass Energy
… and collided at energies up to 200 GeV per nucleon. Collision products and their properties are detected and measured with the PHENIX detector. At these energies the colliding ions may form a thermalized distribution of quarks and gluons called the Quark-Gluon Plasma. The suppression of …
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Single and double polarization observables in the electrodisintegration of the deuteron from BLAST
… mechanisms involved in the interactions between nucleons is one of the fundamental problems in nuclear physics. Over roughly the last 70 years, this question has been approached on many different fronts. We believe that the theory underlying the interaction between nucleons is that between quarks …
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Dynamic Pion Studies in Nuclear Matter
… which allows the extension of current realistic Nucleon-Nucleon interactions to include pionic degrees of freedom. A prescription for transforming any static pion model to one containing explicit energy dependence is provided. We show that adding energy dependence to the pionic component of the …
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Nuclear Fragmentation Energy and Momentum Transfer Distributions in Relativistic Heavy-Ion Collisions
… based on our knowledge of the underlying nucleon-nucleon interaction. Corrections to the above calculations are discussed. Finally, use of the model as a tool for estimating collision impact parameters is indicated.</p>
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Monte Carlo Studies of Momentum Distributions and Longitudinal Response Functions of a = 3 and 4 Nuclei
We review realistic nucleon-nucleon potentials and three-nucleon interaction models based on the two-pion exchange mechanism, describing their theoretical basis. The Faddeev method for the three-body nuclei, and variational approaches for the three- and four-body nuclei wave functions are used to …
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Triton Wave Functions Using Realistic Potentials.
Because the study of three-nucleon systems may provide information pertaining to the interaction between nucleons, much theoretical effort during the past forty years has been devoted to such systems. Provided that a means is found to predict accurately the eigenvalues and eigenfunctions which …
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Green's function Monte Carlo calculations of few-nucleon systems
Recently, a realistic nucleon-nucleon potential has been developed with the goal of accurately reproducing isospin symmetry breaking effects in the nuclear interaction. We briefly discuss the motivation for this potential, called Argonne $v\sb{18},$ as well as the Urbana models of three-nucleon …
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Flow of [phi] mesons in pPb collisions at the LHC with the CMS detector
… The data, collected during 2013 pPb run at a nucleon-nucleon center-ofmass energy of 5.02 TeV with the CMS detector, corresponds to a total integrated luminosity of aproximately 35nb-1. [Phi]-mesons are reconstructed via their hadronic decay channel, [phi] --> K+K-, for high multiplicity …
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Experiments to investigate phonon-nuclear interactions
… on the boost correction associated with the nucleon-nucleon potential for nuclei embedded in a condensed matter environment. Because the newly proposed interaction follows from the relativistic (Dirac) treatment of nucleons, Hagelstein and Chaudhary refer to this interaction as relativistic …
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Search for and studies of Quark-Gluon Plasma via dynamics and productions of heavy quarks in proton-proton and heavy ion collisions at the LHC with CMS detector
… technique in lead-lead collisions at a nucleon-nucleon center of mass energy 5.02 TeV is presented. The splitting between v2{4}/v2{2} of light charged particles and charm mesons is hinted in peripheral collisions, indicating that the potential energy loss fluctuations may become evident …
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Nuclear Electromagnetic Currents in Chiral Effective Field Theory
<p>A nucleon-nucleon potential and consistent nuclear electromagnetic currents are derived in chiral effective field theory retaining pions and nucleons as explicit degrees of freedom. The calculation of the potential is carried out up to next-to-next-to leading order (N<sup>2</sup>LO), while the …
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Μελέτη των χαρακτηριστικών των γεγονότων με οπισθοδρομούντα πρωτόνια σε αντιδράσεις νετρινών και αντινετρινών σε Ne/H₂ στο θάλαμο φυσαλλίδων BEBC
Secondary protons from interactions on a free nucleon target cannot go backwards. Therefore, the selection of events with fast backward protons might allow the study of the high momentum component tail of the Fermi momentum distribution, arising, perhaps, from short-range nucleon-nucleon …
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Disentangling the EMC effect: from free to bound nucleon structure
… targets allow for the study of the structure of nucleons. While the structure of the free proton has been well measured, the free neutron structure and the modification of nucleon structure in the nuclear environment, the EMC effect, remain open questions. Studies suggest that the EMC effect may …
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Properties and dynamics of hot nuclei
… using a Skyrme interaction as the effective nucleon-nucleon interaction. Properties of these nuclei including excitation energy, entropy, and density are investigated as a function of the temperature of the nucleus. The linear response of a hot nucleus to a small amplitude time-dependent …
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Measurements of Correlated Pair Momentum Distributions in -3He(e,e',p,p)n with CLAS
<p>Nucleon-Nucleon (NN) Short Range Correlations (SRC) represent a valuable part of the nuclear wave function. Improved knowledge of SRC will give us a better understanding of nuclear matter and nuclear interactions in extreme conditions. A study of the effects of short-range correlations using the …
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A variational theory of nuclear matter
The hypotheticai system of nucleons known as nuclear matter provides a very interesting field of study with relevance to both nuclear physics and astrophysics. The task of finding nucleon-nucleon potentials that explain the empirical properties of nuclear matter, as well as the two-body data, has …
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Double Spin Asymmetry in d →(e→e'p)n
… using a complete parameterization of nucleon-nucleon scattering as well as a simplified model using the plane wave impulse approximation. From this comparison, it is concluded that the inclusion of final-state interactions are needed at high missing momenta, while the PWIA description …
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Studies of Two-Nucleon Interactions and Few-Body Electromagnetic Structure in Chiral Effective Field Theory
<p>A coordinate-space nucleon-nucleon potential is constructed in chiral effective field theory (χEFT) retaining pions, nucleons and Δ-isobars as explicit degrees of freedom. The calculation of the potential is carried out by including one-and two-pion-exchange contributions up to …
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