83 citations · 427 across the 27 of their papers we have counts for
24 papers · 1 filter
Toward a generative modeling analysis of CLAS exclusive photoproduction
T. Alghamdi, Y. Alanazi, M. Battaglieri +13
AI-supported algorithms, particularly generative models, have been successfully used in a variety of different contexts. In this work, we demonstrate for the first time that genera…
Dynamics in near-threshold photoproduction
JPAC Collaboration, D. Winney, C. Fernandez-Ramirez +12
The study of photoproduction at low energies has consequences for the understanding of multiple aspects of nonperturbative QCD, ranging from mechanical properties of the prot…
Polarized proton structure in the resonance region
A. N. Hiller Blin, V. I. Mokeev
In view of the precise data available on inclusive polarized electron scattering off polarized proton targets in the nucleon resonance excitation region, we compare these results w…
Resonant contributions to polarized proton structure functions
A. N. Hiller Blin, V. I. Mokeev, W. Melnitchouk
Nucleon resonance contributions to the polarized proton and structure functions are computed from resonance electroexcitation amplitudes extracted from CLAS exclusive m…
XYZ spectroscopy at electron-hadron facilities II: Semi-inclusive processes with pion exchange
JPAC Collaboration, D. Winney, A. Pilloni +5
Semi-inclusive processes are very promising to investigate hadrons at the next generation of electron-hadron facilities, because they generally boast higher cross sections. W…
Novel approaches in Hadron Spectroscopy
JPAC Collaboration, Miguel Albaladejo, Lukasz Bibrzycki +15
The last two decades have witnessed the discovery of a myriad of new and unexpected hadrons. The future holds more surprises for us, thanks to new-generation experiments. Understan…
A survey of machine learning-based physics event generation
Yasir Alanazi, N. Sato, Pawel Ambrozewicz +5
Event generators in high-energy nuclear and particle physics play an important role in facilitating studies of particle reactions. We survey the state-of-the-art of machine learnin…
Resonant contributions to inclusive nucleon structure functions from exclusive meson electroproduction data
A. N. Hiller Blin, W. Melnitchouk, V. I. Mokeev +4
Nucleon resonance contributions to the inclusive proton and structure functions are computed from resonance electroexcitation amplitudes in the mass range up to 1.75 Ge…
Machine learning-based event generator for electron-proton scattering
Y. Alanazi, P. Ambrozewicz, M. Battaglieri +11
We present a new machine learning-based Monte Carlo event generator using generative adversarial networks (GANs) that can be trained with calibrated detector simulations to constru…
Pion photoproduction off nucleons in covariant chiral perturbation theory
Gustavo H. Guerrero Navarro, Astrid N. Hiller Blin, M. J. Vicente Vacas +1
Pion photoproduction off the nucleon close to threshold is studied in covariant baryon chiral perturbation theory at O() in the extended-on-mass-shell scheme, with the explici…
Nucleon resonance contributions to unpolarised inclusive electron scattering
A. N. Hiller Blin, V. Mokeev, M. Albaladejo +8
The first CLAS12 experiments will provide high-precision data on inclusive electron scattering observables at a photon virtuality ranging from 0.05 GeV to 12 GeV and…
Electromagnetic form factors of spin 1/2 doubly charmed baryons
Astrid N. Hiller Blin, Zhi-Feng Sun, M. J. Vicente Vacas
We study the electromagnetic form factors of the doubly charmed baryons, using covariant chiral perturbation theory within the extended on-mass-shell (EOMS) scheme. Vector-meson co…
Exploring hyperon structure with electromagnetic transverse densities
Jose Manuel Alarcón, Astrid N. Hiller Blin, Manuel J. Vicente Vacas +1
We explore the structure of the spin-1/2 flavor-octet baryons (hyperons) through their electromagnetic transverse densities. The transverse densities describe the distribution of c…
Studying the Pc(4450) resonance in J/psi photoproduction off protons
Astrid N. Hiller Blin, César Fernández-Ramírez, Andrew Jackura +4
The LHCb has reported the observation of a resonancelike structure, the Pc(4450), in the J/psi p invariant masses. In our work, we discuss the feasibility of detecting this structu…
Relating CP-violating decays to the neutron EDM
Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko +4
We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the meson to the neutron. Usin…
Peripheral transverse densities of the baryon octet from chiral effective field theory and dispersion analysis
J. M. Alarcón, A. N. Hiller Blin, M. J. Vicente Vacas +1
The baryon electromagnetic form factors are expressed in terms of two-dimensional densities describing the distribution of charge and magnetization in transverse space at fixed lig…
Transverse densities of octet baryons from chiral effective field theory
Jose Manuel Alarcón, Astrid N. Hiller Blin, C. Weiss
Transverse densities describe the distribution of charge and current at fixed light-front time and provide a frame-independent spatial representation of hadrons as relativistic sys…
CP-violating decays of the pseudoscalars eta and eta' and their connection to the electric dipole moment of the neutron
Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko +4
Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the eta(eta') to the nucleon. Using th…
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…
Studying the P_c(4450) resonance in J/psi photoproduction off protons
A. N. Hiller Blin, C. Fernández-Ramírez, A. Jackura +4
A resonance-like structure, the P_c(4450), has recently been observed in the J/psi p spectrum by the LHCb collaboration. We discuss the feasibility of detecting this structure in J…
Covariant ChPT calculation of the hyperon forward spin polarizability
Astrid Hiller Blin, Thomas Gutsche, Tim Ledwig +1
We predict the values for baryon forward spin polarizabilities in fully covariant ChPT and including the virtual contributions of the spin-3/2 states. As the nucleon results are in…
Hyperon forward spin polarizability gamma0 in baryon chiral perturbation theory
Astrid Hiller Blin, Thomas Gutsche, Tim Ledwig +1
We present the calculation of the hyperon forward spin polarizability gamma0 using manifestly Lorentz covariant baryon chiral perturbation theory including the intermediate contrib…
Threshold Neutral Pion Photoproduction on the Proton
Astrid Hiller Blin, Manuel Vicente Vacas, Tim Ledwig
The neutral pion photoproduction on the proton near threshold has a very small scattering cross section when compared to the charged channels, which in ChPT is explained by strong…
Chiral dynamics in the gamma p --> p pi0 reaction
A. N. Hiller Blin, T. Ledwig, M. J. Vicente Vacas
We investigate the neutral pion photoproduction on the proton near threshold in covariant chiral perturbation theory with the explicit inclusion of Delta degrees of freedom. This c…