147 citations · 988 across the 37 of their papers we have counts for
12 papers · 1 filter
Determination of the pole position of the lightest hybrid meson candidate
JPAC Collaboration, A. Rodas, A. Pilloni +9
Mapping states with explicit gluonic degrees of freedom in the light sector is a challenge, and has led to controversies in the past. In particular, the experiments have reported t…
Pole position of the from -decay
JPAC Collaboration, M. Mikhasenko, A. Pilloni +8
We perform an analysis of the three-pion system with quantum numbers produced in the weak decay of leptons. The interaction is known to be dominated by the axia…
Regge phenomenology of the and poles
JPAC collaboration, J. A. Silva-Castro, C. Fernandez-Ramirez +8
We use Regge phenomenology to study the structure of the poles of the and spectrum. We employ the available pole extractions from partial wave analysis of meson scatter…
Global analysis of charge exchange meson production at high energies
JPAC Collaboration, J. Nys, A. N. Hiller Blin +7
Many experiments that are conducted to study the hadron spectrum rely on peripheral resonance production. Hereby, the rapidity gap allows the process to be viewed as an independent…
What is the right formalism to search for resonances? II. The pentaquark chain
JPAC Collaboration, A. Pilloni, J. Nys +8
We discuss the differences between several partial-wave analysis formalisms used in the construction of three-body decay amplitudes involving fermions. Specifically, we consider th…
Vector Meson Photoproduction with a Linearly Polarized Beam
JPAC Collaboration, V. Mathieu, J. Nys +6
We propose a model based on Regge theory to describe photoproduction of light vector mesons. We fit the SLAC data and make predictions for the energy and momentum transfer dependen…
What is the right formalism to search for resonances?
JPAC Collaboration, M. Mikhasenko, A. Pilloni +8
Hadron decay chains constitute one of the main sources of information on the QCD spectrum. We discuss the differences between several partial wave analysis formalisms used in the l…
Analyticity Constraints for Hadron Amplitudes: Going High to Heal Low Energy Issues
JPAC Collaboration, V. Mathieu, J. Nys +7
Analyticity constitutes a rigid constraint on hadron scattering amplitudes. This property is used to relate models in different energy regimes. Using meson photoproduction as a ben…
New analysis of tensor resonances measured at the COMPASS experiment
A. Jackura, C. Fernandez-Ramirez, M. Mikhasenko +232
We present a new amplitude analysis of the -wave in measured by COMPASS. Employing an analytical model based on the principles of the relativistic -mat…
Amplitude analysis and the nature of the Zc(3900)
JPAC Collaboration, A. Pilloni, C. Fernandez-Ramirez +5
The microscopic nature of the XYZ states remains an unsettled topic. We show how a thorough amplitude analysis of the data can help constraining models of these states. Specificall…
Finite-Energy Sum Rules in Eta Photoproduction off the Nucleon
JPAC Collaboration, J. Nys, V. Mathieu +8
The reaction is studied in the high-energy regime (with photon lab energies GeV) using information from the resonance region through the use of…
Model discrimination in pseudoscalar-meson photoproduction
J. Nys, J. Ryckebusch, D. G. Ireland +1
To learn about a physical system of interest, experimental results must be able to discriminate among models. We introduce a geometrical measure to quantify the distance between mo…