111 citations · 668 across the 30 of their papers we have counts for
26 papers · 1 filter
Production Effects and Final-state Interactions in
D. Winney, S. Gonzàlez-Solís, M. Mikhasenko +8
We investigate the signal channel of in the -wave. This channel has recently been analyzed by the COMPASS collaboration using t…
High-energy photoproduction and the nature of exotic waves
Gloria Montaña, Vincent Mathieu, Vanamali Shastry +9
The observation of hybrid mesons in photoproduction experiments can provide essential insight into the inner workings of quantum chromodynamics in the strong coupling regime. In pa…
and transition form factor from Khuri-Treiman equations
A. Garcia-Lorenzo, M. Albaladejo, S. Gonzlez-Solis +6
This work studies the decay and the transition form factor, utilizing the Khuri-Treiman formalism to account for analyticity, crossing, and unitarity. U…
Towards a unified description of hadron scattering at all energies
Dominik Stamen, Daniel Winney, Arkaitz Rodas +5
The construction of general amplitudes satisfying symmetries and -matrix constraints has been the primary tool in studying the spectrum of hadrons for over half a century. In th…
Revisiting gauge invariance and Reggeization of pion exchange
Gloria Montana, Daniel Winney, Lukasz Bibrzycki +10
The Reggeized pion is expected to provide the main contribution to the forward cross section in light meson photoproduction reactions with charge exchange at high energies. We disc…
Studying photoproduction beyond Pomeron exchange
Łukasz Bibrzycki, Nadine Hammoud, Vincent Mathieu +10
Forward photoproduction of pairs with invariant mass of the order of MeV is traditionally understood to be produced via Pomeron exchange. Based on a detailed…
Nonperturbative aspects of the electromagnetic pion form factor at high energies
Joint Physics Analysis Center, :, K. Quirion +10
The structure of hadronic form factors at high energies and their deviations from perturbative quantum chromodynamics provide insight on nonperturbative dynamics. Using an approach…
XYZ spectroscopy at electron-hadron facilities III: Semi-inclusive processes with vector exchanges
Joint Physics Analysis Center Collaboration, D. Winney, A. Pilloni +10
Inclusive production processes will be important for the first observations of states at new generation electron-hadron colliders, as they generally benefit from larger cross…
Studying the production mechanisms of light meson resonances in two-pion photoproduction
Łukasz Bibrzycki, Nadine Hammoud, Vincent Mathieu +2
A theoretical model of two-pion photoproduction is presented. The model encodes the prominent resonance and the expected leading background contribution coming from the De…
Studying the production mechanisms of light meson resonances in two-pion photoproduction: a Regge approach
Łukasz Bibrzycki, Nadine Hammoud, Vincent Mathieu +2
A calculation of the angular moments of two-pion photoproduction is presented. The underlying theoretical model encodes the prominent resonance and the expected leading ba…
The case for an EIC Theory Alliance: Theoretical Challenges of the EIC
Raktim Abir, Igor Akushevich, Tolga Altinoluk +167
We outline the physics opportunities provided by the Electron Ion Collider (EIC). These include the study of the parton structure of the nucleon and nuclei, the onset of gluon satu…
Khuri-Treiman analysis of
JPAC Collaboration, M. Albaladejo, S. Gonzàlez-Solís +12
We study the decay within the framework of the Khuri-Treiman equations. We find that the BESIII experimental di-pion mass distribution in the -regio…
Exclusive tensor meson photoproduction
JPAC Collaboration, V. Mathieu, A. Pilloni +5
We study tensor meson photoproduction outside of the resonance region, at beam energies of few GeVs. We build a model based on Regge theory that includes the leading vector and axi…
and transition form factor revisited
M. Albaladejo, I. Danilkin, S. Gonzalez-Solis +7
In light of recent experimental results, we revisit the dispersive analysis of the decay amplitude and of the transition form factor. Within the framework of the K…
Khuri-Treiman equations for decays of particles with spin
JPAC Collaboration, M. Albaladejo, D. Winney +7
Khuri-Treiman equations have proven to be a useful theoretical tool in the analysis of 3-body decays, specially into the final state. In this work we present in full detail th…
Dalitz-plot decomposition for three-body decays
JPAC Collaboration, M. Mikhasenko, M. Albaladejo +9
We present a general formalism to write the decay amplitude for multibody reactions with explicit separation of the rotational degrees of freedom, which are well controlled by the…
Three-body scattering: Ladders and Resonances
M. Mikhasenko, Y. Wunderlich, A. Jackura +4
We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show how the short-range interaction that describes three-body resonances can be sep…
Interpretation of the LHCb Pc(4312) Signal
JPAC Collaboration, C. Fernandez-Ramirez, A. Pilloni +6
We study the nature of the new signal reported by LHCb in the J/psi p spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction ampl…
Phenomenology of Relativistic Reaction Amplitudes within the Isobar Approximation
JPAC Collaboration, A. Jackura, C. Fernández-Ramírez +7
Further progress in hadron spectroscopy necessitates the phenomenological description of three particle reactions. We consider the isobar approximation, where the connected part of…
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…
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…
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…
On the and Photoproduction Beam Asymmetry at High Energies
V. Mathieu, J. Nys, C. Fernández-Ramírez +5
We show that, in the Regge limit, beam asymmetries in and photoproduction are sensitive to hidden strangeness components. Under reasonable assumptions about the couplings…
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…