Studies of nucleon resonance structure in exclusive meson electroproduction

IG Aznauryan, A Bashir, VM Braun… - … Journal of Modern …, 2013 - World Scientific
Studies of the structure of excited baryons are key factors to the N* program at Jefferson Lab
(JLab). Within the first year of data taking with the Hall B CLAS12 detector following the 12 …

Electromagnetic transition form factors of baryon resonances

G Ramalho, MT Peña - Progress in Particle and Nuclear Physics, 2024 - Elsevier
Recent experimental and theoretical advancements have led to significant progress in our
understanding of the electromagnetic structure of nucleons (N), nucleon excitations (N∗) …

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ

D Rönchen, M Döring, F Huang, H Haberzettl… - The European Physical …, 2013 - Springer
Elastic πN scattering and the world data of the family of reactions π− p→ ηn, K 0 Λ, K 0 Σ 0,
K+ Σ−, and π+ p→ K+ Σ+ are described simultaneously in an analytic, unitary, coupled …

[HTML][HTML] Searching a dark photon with HADES

G Agakishiev, A Balanda, D Belver, A Belyaev… - Physics Letters B, 2014 - Elsevier
We present a search for the e+ e− decay of a hypothetical dark photon, also named U vector
boson, in inclusive dielectron spectra measured by HADES in the p (3.5 GeV)+ p, Nb …

Production and electromagnetic decay of hyperons: a feasibility study with HADES as a phase-0 experiment at FAIR

J Adamczewski-Musch, A Belyaev, A Blanco… - The European Physical …, 2021 - Springer
A feasibility study has been performed in order to investigate the performance of the HADES
detector to measure the electromagnetic decays of the hyperon resonances Σ (1385)^ 0 Σ …

Dalitz decay in proton-proton collisions at GeV measured with HADES at GSI

J Adamczewski-Musch, O Arnold, ET Atomssa… - Physical Review C, 2017 - APS
We report on the investigation of Δ (1232) production and decay in proton-proton collisions
at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels …

Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model

J Weil, H van Hees, U Mosel - The European Physical Journal A, 2012 - Springer
Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport
model Page 1 DOI 10.1140/epja/i2012-12111-9 Regular Article – Theoretical Physics Eur …

[HTML][HTML] Electromagnetic| GE/GM| ratios of hyperons at large timelike q2

G Ramalho, MT Peña, K Tsushima, MK Cheoun - Physics Letters B, 2024 - Elsevier
In recent years, it has become possible to measure not only the magnitude of the electric
(GE) and magnetic (GM) form factors of spin 1 2 baryons, but also to measure the relative …

Role of the pion electromagnetic form factor in the timelike transition

G Ramalho, MT Pena, J Weil, H van Hees, U Mosel - Physical Review D, 2016 - APS
The Δ (1232)→ γ* N magnetic dipole form factor (GM*) is described here within a new
covariant model that combines the valence quark core together with the pion cloud …

Dilepton radiation from strongly interacting systems

P Salabura, J Stroth - Progress in Particle and Nuclear Physics, 2021 - Elsevier
We review the current understanding of time-like virtual photon emission from QCD matter.
The phenomenology of dilepton emission is discussed and basic theoretical concepts are …