Results 11 to 20 of about 171,990 (269)

The nucleon-nucleon interaction [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2001
We review the major progress of the past decade concerning our understanding of the nucleon-nucleon interaction. The focus is on the low-energy region (below pion production threshold), but a brief outlook towards higher energies is also given. The items discussed include charge-dependence, the precise value of the $ NN$ coupling constant, phase shift
Ivo Slaus, Ruprecht Machleidt
openaire   +6 more sources

Dispersive determination of nucleon gravitational form factors [PDF]

Nature Communications
Being closely connected to the origin of the nucleon mass, the gravitational form factors of the nucleon have attracted significant attention in recent years.
Xiong-Hui Cao, Feng-Kun Guo, Qu-Zhi Li, De-Liang Yao   +3 more
doaj   +2 more sources

Experimental Determination of the QCD Effective Charge α_g1(Q)

Particles, 2022
The QCD effective charge αg1(Q) is an observable that characterizes the magnitude of the strong interaction. At high momentum Q, it coincides with the QCD running coupling αs(Q).
Alexandre Deur, Volker Burkert, Jian-Ping Chen, Wolfgang Korsch   +3 more
doaj   +1 more source

Pionic hydrogen and deuterium [PDF]

EPJ Web of Conferences, 2022
The strong-interaction effects both in pionic hydrogen and deuterium atoms have been re-determined with improved precision. The hadronic shift and width in pionic hydrogen together with the hadronic shift in pionic deuterium constitute a one-fold ...
Gotta D., Amaro F.D., Anagnostopoulos D.F., Bühler P., Covita D.S., Fuhrmann H., Gorke H., Gruber A., Hennebach M., Hirtl A., Ishiwatari T., Indelicato P., Jensen T.S., Le Bigot E.-O., Liu Y.-W., Manil B., Markushin V.E., Marton J., Nekipelov M., Pomerantsev V.N., Popov V.P., el Hassani A. J. Rusi, dos Santos J. M. F., Schlesser S., Schmid Ph., Simons L.M., Strauch Th., Theisen M., Trassinelli M., Veloso J. F. C. A., Zmeskal J.   +30 more
doaj   +1 more source

Measurement of the Tensor-Analyzing Power Component T₂₀ for Incoherent Negative Pion Photoproduction on a Deuteron

Atoms, 2023
New results for the T20-component of the tensor-analyzing power of the incoherent negative pion photoproduction are presented. The experiment was performed for the electron beam energy of 800 MeV at the VEPP-3 storage ring in 2021.
Anna Kuzmenko, Vyacheslav Gauzshtein, Eed Darwish, Alexander Fix, Matvey Kuzin, Michael Levchuk, Alexey Loginov, Dmitriy Nikolenko, Igor Rachek, Yuriy Shestakov, Dmitriy Toporkov, Arseniy Yurchenko, Bogdan Vasilishin, Sergey Zevakov   +13 more
doaj   +1 more source

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

EPJ 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, Gómez-Camacho Joaquín, Moro Muñoz Antonio Matías   +2 more
doaj   +1 more source

Isotriplet pairing energy of nucleons in nuclei

Results in Physics, 2023
The problem of describing the nucleon pairing energy in nuclei is considered using a realistic nucleon-nucleon potential that reproduces the parameters of nucleon-nucleon scattering.
F.M. Pen'kov, T.K. Zholdybayev, P.M. Krassovitskiy, V.O. Kurmangalieva   +3 more
doaj   +1 more source

Nucleon-Nucleon Scattering Up to N5LO in Chiral Effective Field Theory

Frontiers in Physics, 2020
During the past few decades a large effort has been made toward describing the NN interaction in the framework of chiral Effective Field Theory (EFT). The main idea is to exploit the symmetries of QCD to obtain an effective theory for low energy nuclear ...
David Rodriguez Entem, David Rodriguez Entem, Ruprecht Machleidt, Yevgen Nosyk   +3 more
doaj   +1 more source

Nucleon–nucleon interactions on the lattice [PDF]

Physics 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
Martin J. Savage, Silas R. Beane
openaire   +3 more sources

Chromo-Electric Field Energy in Quark Models

Frontiers in Physics, 2019
We study the contribution of the chromo-electric field to the total energy of the hadrons. We analyze the case of quarks considered as extended sources of the field. Specific forms of the interaction potential of the quarks are obtained.
Maurizio De Sanctis
doaj   +1 more source