Results 61 to 70 of about 36,166 (234)

LET measurements in proton and helium‐ion beams of therapeutic energies using a silicon pixel detector towards a tool for quality assurance

open access: yesMedical Physics, Volume 52, Issue 9, September 2025.
Abstract Background As advanced treatment plans increasingly include optimizing both dose and linear energy transfer (LET), there is a growing demand for tools to measure LET in clinical settings. Although various detection systems have been investigated in this pursuit, the scarcity of detectors capable of providing per‐ion data for a fast and ...
Yasmin Hamad   +5 more
wiley   +1 more source

Nucleon-Nucleon Interaction from Pion-Nucleon Phase-Shift Analysis

open access: yesPhysical Review D, 1973
The two-pion exchange contributions to nucleon-nucleon forces are calculated from our knowledge of pion-nucleon phase shifts and pion-pion interaction which are used as input into dispersion relations with the subtractions required by Regge asymptotic behavior. At low energies.
R. Vinh Mau   +4 more
openaire   +2 more sources

The Curious Concept That Almost Nobody Seemed to Care About at First: Virtual Particles in the Post‐War Period**

open access: yesBerichte zur Wissenschaftsgeschichte, Volume 48, Issue 1-2, Page 143-162, August 2025.
Abstract Short‐lived, unobservable, and not subject to the usual rules of conservation of energy and momentum, virtual particles—an integral part of the conceptual framework of quantum field theory (QFT)—exhibit a number of curious characteristics which, in recent decades, have in part fueled important discussions about their ontological status ...
Jean‐Philippe Martinez
wiley   +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

open access: yesЯдерна 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  

Experimental progress and status on nucleon electromagnetic form factors

open access: yesEPJ Web of Conferences, 2016
Nucleon electromagnetic form factors are the fundamental quantities that are related to a two-dimensional view of the charge and magnetization distribution in the nucleon. They are essential in understanding the nucleon electromagnetic structure. In this
Gao H., Peng C., Zhao Z.W.
doaj   +1 more source

Modelo Quark-Diquark para dispersión elástica protón -protón con normalización global

open access: yesRevista de la Facultad de Ciencias, 2019
Se presenta el estudio de un modelo de dispersión elástica nucleón-nucleón (y nucleón antinucleón)  basado en una representación quark-diquark del nucleón con pomerón elástico.
Alejandro Molina-Cerón   +1 more
doaj   +1 more source

Reconstructing the late Pleistocene glacial history of the Cairngorm Mountains, Scotland, using paired cosmogenic 10Be and 14C

open access: yesJournal of Quaternary Science, Volume 40, Issue 6, Page 977-995, August 2025.
ABSTRACT Chronologic and geomorphic evidence of past glaciations is largely recorded in areas at relatively low elevation and/or landscapes defined by high glacial erosion. As a result, data from areas that did not experience significant glacial erosion and the highest elevation locations are lacking from reconstructions of past ice masses.
Samuel E. Kelley   +5 more
wiley   +1 more source

Neutron properties from light nuclei

open access: yesEPJ Web of Conferences, 2017
We review the achievements of the project B.6. Topics addressed include pion photoproduction of three-nucleon systems, electromagnetic and axial currents in chiral nuclear EFT, aspects of EFTs with spin-3/2 fields, nuclear structure and dynamics from the
Epelbaum Evgeny   +2 more
doaj   +1 more source

Short range nucleon correlations studied with electron and photon probes

open access: yesSciPost Physics Proceedings, 2020
This paper reviews experimental research into two- and three-body nucleon-nucleon interactions, carried out by the University of Glasgow Nuclear Physics research group.
I.J. Douglas MacGregor
doaj   +1 more source

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

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