Results 111 to 120 of about 159,480 (286)

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Investigations of the few-nucleon systems within the LENPIC project

SciPost 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

Nucleon-nucleon scattering from distillation

, 2022
We report an ongoing analysis of nucleon-nucleon scattering based on finite-volume spectroscopy. The calculation is performed using the distillation method on eight lattice ensembles at the SU(3)-symmetric point with $m_\pi=m_K\approx 420$ MeV generated by CLS, covering a range of lattice spacings and volumes and previously used to study the $H ...
Green, Jeremy Russell, Hanlon, Andrew D., Junnarkar, Parikshit M., Wittig, Hartmut, Baryon Scattering Collaboration   +4 more
openaire   +1 more source

Electron Densities in Jupiter's Upper Ionosphere Inferred From Juno Plasma Wave Observations

Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.
Abstract Juno's highly eccentric polar orbit takes it to perijove distances of ∼ ${\sim} $1.06 RJ ${\mathrm{R}}_{J}$ on each orbit. For the first perijove, this occurred just north of the jovigraphic equator, but has precessed north by about a degree per orbit over the mission.
W. S. Kurth, J. B. Faden, J. H. Waite, A. H. Sulaiman, S. S. Elliott, G. B. Hospodarsky, J. E. P. Connerney, J. A. Kammer, T. Greathouse, P. Valek, F. Allegrini, F. Bagenal, T. Stallard, L. Moore, D. A. Coffin, O. Agiwal, P. Withers, S. J. Bolton   +17 more
wiley   +1 more source

The nucleon microscopic optical potential based on the Skyrme interaction

EPJ Web of Conferences, 2017
The nucleon microscopic optical potential based on the conventional and extended Skyrme interactions are achieved by the single-particle Green function method through nuclear matter approximation and local density approximation.
Xu Yongli, Guo Hairui, Han Yinlu, Shen Qingbiao   +3 more
doaj   +1 more source

On the impact of mass difference between the pions (π±-π0) and the nucleons (n-p) on the charge independence breaking of nuclear forces

Ядерна фізика та енергетика, 2017
Charge dependence of the pion-nucleon coupling constants and the 1S0-state low-energy nucleon-nucleon scattering parameters are studied on the basis of the Yukawa meson theory.
V. A. Babenko, N. M. Petrov
doaj  

Formal theory of heavy ion double charge exchange reactions [PDF]

EPJ Web of Conferences
The theory of heavy ion double charge exchange (DCE) reactions A(Z, N) → A(Z ± 2, N ∓ 2) is recapitulated emphasizing the role of Double Single Charge Exchange (DSCE) and pion-nucleon Majorana DCE (MDCE) reactions.
Lenske Horst, Bellone Jessica, Colonna Maria, Gambacurta Danilo, Lay Jose-Antonio   +4 more
doaj   +1 more source

Scattering of nucleons in the classical Skyrme model

Nuclear Physics B, 2015
Classically spinning B=1 Skyrmions can be regarded as approximations to nucleons with quantised spin. Here, we investigate nucleon–nucleon scattering through numerical collisions of spinning Skyrmions.
David Foster, Nicholas S. Manton
doaj   +1 more source

Analysis of proton scattering of stable and exotic light nuclei using an energy-dependent microscopic optical potential

EPJ Web of Conferences, 2016
The proton elastic scattering off the 9,10,11,12Be isotopes at a wide energy range from 3 to 200 MeV/nucleon is analyzed using the optical model with the partial-wave expansion method.
Maridi H. M., Farag M. Y. H., Esmael E. H.   +2 more
doaj   +1 more source

θ-dependence of light nuclei and nucleosynthesis

Physical Review Research, 2020
We investigate the impact of the QCD vacuum at nonzero θ on the properties of light nuclei, Big Bang nucleosynthesis, and stellar nucleosynthesis. Our analysis starts with a calculation of the θ-dependence of the neutron-proton mass difference and ...
Dean Lee, Ulf-G. Meißner, Keith A. Olive, Mikhail Shifman, Thomas Vonk   +4 more
doaj   +1 more source