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The incompleteness of complete pseudoscalar-meson photoproduction
Tom Vrancx, Jan Ryckebusch, Tom Van Cuyck +1
[Background] A complete set is a minimum set of observables which allows one to determine the underlying reaction amplitudes unambiguously. Pseudoscalar-meson photoproduction from…
Bayesian inference of the resonance content of p(gamma,K+)Lambda
Pieter Vancraeyveld, Lesley De Cruz, Jan Ryckebusch +1
A Bayesian analysis of the world's p(gamma,K+)Lambda data is presented. We adopt a Regge-plus-resonance framework featuring consistent couplings for nucleon resonances up to spin J…
Kaon photoproduction from the deuteron in a Regge-plus-resonance approach
Pieter Vancraeyveld, Lesley De Cruz, Jan Ryckebusch +1
We present a Regge-inspired effective-Lagrangian framework for kaon photoproduction from the deuteron. Quasi-free kaon production is investigated using the Regge-plus-resonance (RP…
A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
Lesley De Cruz, Jan Ryckebusch, Tom Vrancx +1
We address the issue of unbiased model selection and propose a methodology based on Bayesian inference to extract physical information from kaon photoproduction data. W…
Bayesian inference of the resonance content of p(gamma,K^+)Lambda
Lesley De Cruz, Tom Vrancx, Pieter Vancraeyveld +1
A Bayesian analysis of the world's p(gamma,K^+)Lambda data is presented. From the proposed selection of 11 resonances, we find that the following nucleon resonances have the highes…
Modeling neutrino-nucleus interactions in the few-GeV regime
Natalie Jachowicz, Pieter Vancraeyveld
Detecting neutrinos and extracting the information they bring along is an ambitions task that requires a detailed understanding of neutrino-nucleus interactions over a broad energy…
Consistent interactions for high-spin baryons
Tom Vrancx, Lesley De Cruz, Jan Ryckebusch +1
Consistent interactions for off-shell fermion fields of arbitrary spin are constructed from the gauge-invariance requirement of the interaction Lagrangians. These interactions play…
The Regge-plus-resonance model for kaon production on the proton and the neutron
J. Ryckebusch, L. De Cruz, P. Vancraeyveld +1
The Regge-plus-resonance (RPR) framework for kaon photoproduction on the proton and the neutron is an economical single-channel model with very few parameters. Not only does the RP…
Consistent interactions for high-spin fermion fields
Tom Vrancx, Lesley De Cruz, Jan Ryckebusch +1
We address the issue of consistent interactions for off-shell fermion fields of arbitrary spin. These interactions play a crucial role in the quantum hadrodynamical description of…
Bayesian Model Selection for Electromagnetic Kaon Production on the Nucleon
L. De Cruz, D. G. Ireland, P. Vancraeyveld +1
We present the results of a Bayesian analysis of a Regge model for K+ Lambda photoproduction. The model is based on the exchange of K+(494) and K*+(892) trajectories in the t-chann…
Regge-plus-resonance predictions for neutral-kaon photoproduction from the deuteron
Pieter Vancraeyveld, Lesley De Cruz, Jan Ryckebusch
We present a Regge-inspired effective-Lagrangian framework for neutral-kaon photoproduction from the deuteron. Quasi-free kaon production is investigated using the Regge-plus-reson…
Bayesian model selection for electromagnetic kaon production on the nucleon
L. De Cruz, D. G. Ireland, P. Vancraeyveld +1
We present the results of a Bayesian analysis of a Regge model to describe the background contribution for K+ Lambda and K+ Sigma0 photoproduction. The model is based on the exchan…
Regge-plus-resonance predictions for charged-kaon photoproduction from the deuteron
Pieter Vancraeyveld, Lesley De Cruz, Jan Ryckebusch +1
We present a Regge-inspired effective-Lagrangian framework for charged-kaon photoproduction from the deuteron. Quasi-free kaon production is investigated using the Regge-plus-reson…
Regge-plus-resonance predictions for kaon photoproduction from the neutron
P. Vancraeyveld, L. De Cruz, J. Ryckebusch +1
We present predictions for n(gamma,K+)Sigma- differential cross sections and photon-beam asymmetries and compare them to recent LEPS data. We adapt a Regge-plus-resonance (RPR) mod…
Regge-model predictions for K+Sigma photoproduction from the nucleon
Pieter Vancraeyveld, Lesley De Cruz, Jan Ryckebusch +1
We present Regge-model predictions for the p(gamma,K+)Sigma0 and n(gamma,K+)Sigma- differential cross sections and photon-beam asymmetries in the resonance region. The reaction amp…
Strangeness content of the nucleon in quasielastic neutrino-nucleus reactions
N. Jachowicz, P. Vancraeyveld, P. Lava +2
We present a systematic study of the sensitivity of quasielastic neutrino-nucleus cross sections at intermediate energies to the strange quark sea of the nucleon. To this end, we i…
Electroproduction of kaons from the proton in a Regge-plus-resonance approach
T. Corthals, T. Van Cauteren, P. Van Craeyveld +2
We present a Regge-plus-resonance (RPR) description of the p(e,e'K^+)Y processes (Y=Λ,Σ^0) in the resonance region. The background contributions to the RPR amplitude are constraine…
The Paschos-Wolfenstein relation in a hadronic picture
C. Praet, N. Jachowicz, J. Ryckebusch +2
The Paschos-Wolfenstein (PW) relation joins neutral- and charged-current neutrino- and antineutrino-induced cross sections into an expression that depends on the weak mixing angle…