Results 1 to 10 of about 6,062 (236)

Core-valence absorption in breakup and stripping reactions and its isospin dependence [PDF]

open access: yesEPJ Web of Conferences, 2023
In this work, the effect of nucleon-core absorption on nucleon removal reaction is explored through the use of complex nucleon-core interactions. Results are presented for exclusive breakup reactions, where absorption is explored through the use of a ...
Gómez-Ramos Mario   +2 more
doaj   +1 more source

Four-body Faddeev-type calculation of the K̅NNN system [PDF]

open access: yesEPJ Web of Conferences, 2022
A quasi-bound state in the K̅NNN system caused by strong interactions was studied using dynamically exact four-body Faddeev-type equations. Binding energy and width of the K−ppn state were calculated using three antikaon-nucleon and three nucleon-nucleon
Shevchenko Nina V.
doaj   +1 more source

Nucleon-nucleon potential from skyrmion dipole interactions

open access: yesNuclear Physics B, 2021
We derive the nucleon-nucleon interaction from the Skyrme model using second order perturbation theory and the dipole approximation to skyrmion dynamics. Unlike previous derivations, our derivation accounts for the non-trivial kinetic and potential parts
D.G. Harland, C.J. Halcrow
doaj   +1 more source

Rescattering effects in nucleon-to-meson form factors and application to tau-lepton-induced proton decay

open access: yesPhysics Letters B, 2023
Nucleon decays put extremely stringent bounds on baryon-number-violating interactions. However, in case the corresponding operators involve only τ leptons, the direct two-body decays, e.g., p→π0τ+, are kinematically not allowed and nucleon decay can only
Andreas Crivellin, Martin Hoferichter
doaj   +1 more source

Nucleon-nucleon interactions [PDF]

open access: yesNature, 1978
Nucleon-nucleon interactions are at the heart of nuclear physics, bridging the gap between QCD and the effective interactions appropriate for the shell model. We discuss the current status of NN data sets, partial-wave analyses, and some of the issues that go into the construction of potential models.
openaire   +2 more sources

Single-particle spectroscopic strength from nucleon transfer reactions with a three-nucleon force contribution

open access: yesPhysics Letters B, 2023
The direct reaction theory widely used to study single-particle spectroscopic strength in nucleon transfer experiments is based on a Hamiltonian with two-nucleon interactions only.
N.K. Timofeyuk   +2 more
doaj   +1 more source

Local Nucleon-Nucleon and Three-Nucleon Interactions Within Chiral Effective Field Theory

open access: yesFrontiers in Physics, 2020
To obtain an understanding of the structure and reactions of nuclear systems from first principles has been a long-standing goal of nuclear physics. In this respect, few- and many-body systems provide a unique laboratory for studying nuclear interactions.
Maria Piarulli, Ingo Tews
doaj   +1 more source

Nucleon–nucleon interactions on the lattice [PDF]

open access: yesPhysics Letters B, 2002
We consider the nucleon-nucleon potential in quenched and partially-quenched QCD. The leading one-meson exchange contribution to the potential is found to fall off exponentially at long-distances, in contrast with the Yukawa-type behaviour found in QCD. This unphysical component of the two-nucleon potential has important implications for the extraction
Beane, Silas R., Savage, Martin J.
openaire   +2 more sources

Uncertainties in ab initio nuclear structure calculations with chiral interactions

open access: yesFrontiers in Physics, 2023
We present theoretical ground state energies and their uncertainties for p-shell nuclei obtained from chiral effective field theory internucleon interactions as a function of chiral order, fitted to two- and three-body data only.
P. Maris   +5 more
doaj   +1 more source

Investigations of the few-nucleon systems within the LENPIC project

open access: yesSciPost Physics Proceedings, 2020
Results presented in this contribution are obtained within the Low Energy Nuclear Physics International Collaboration (LENPIC). LENPIC aims to develop chiral nucleon-nucleon and many-nucleon interactions complete through at least the fourth order in ...
Jacek Golak, Evgeny Epelbaum, Alessandro Grassi, Hiroyuki Kamada, Hermann Krebs, Patrick Reinert, Roman Skibiński, Volodymyr Soloviov, Kacper Topolnicki, Vitalii Urbanevych, Yuriy Volkotrub, Henryk Witała
doaj   +1 more source

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