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Bayesian model selection for electromagnetic kaon production on the nucleon

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HPC-UGent: the central High Performance Computing infrastructure of Ghent University
Abstract
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-channel. For different prior widths, we find decisive Bayesian evidence (Δln Z ~ 24) for a K+ Lambda photoproduction Regge model with a positive vector coupling and a negative tensor coupling constant for the K+(892) trajectory, and a rotating phase factor for both trajectories. Using the chi^2 minimization method, one could not draw this conclusion from the same dataset.
Keywords
Regge phenomenology, Bayesian inference, Model selection, PHOTOPRODUCTION, HYDROGEN, 16-GEV

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Citation

Please use this url to cite or link to this publication:

Chicago
De Cruz, Lesley, David G Ireland, Pieter Vancraeyveld, and Jan Ryckebusch. 2011. “Bayesian Model Selection for Electromagnetic Kaon Production on the Nucleon.” Ed. Aleksandra Wrońska, Stanisław Kistryn, Hartmut Machner, and Carlo Guaraldo. International Journal of Modern Physics A 26 (3-4): 642–644.
APA
De Cruz, L., Ireland, D. G., Vancraeyveld, P., & Ryckebusch, J. (2011). Bayesian model selection for electromagnetic kaon production on the nucleon. (Aleksandra Wrońska, S. Kistryn, H. Machner, & C. Guaraldo, Eds.)INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 26(3-4), 642–644. Presented at the 11th International workshop on Meson Production, Properties and Interaction (MESON 2010).
Vancouver
1.
De Cruz L, Ireland DG, Vancraeyveld P, Ryckebusch J. Bayesian model selection for electromagnetic kaon production on the nucleon. Wrońska A, Kistryn S, Machner H, Guaraldo C, editors. INTERNATIONAL JOURNAL OF MODERN PHYSICS A. 2011;26(3-4):642–4.
MLA
De Cruz, Lesley, David G Ireland, Pieter Vancraeyveld, et al. “Bayesian Model Selection for Electromagnetic Kaon Production on the Nucleon.” Ed. Aleksandra Wrońska et al. INTERNATIONAL JOURNAL OF MODERN PHYSICS A 26.3-4 (2011): 642–644. Print.
@article{1185825,
  abstract     = {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-channel. For different prior widths, we find decisive Bayesian evidence (\ensuremath{\Delta}ln Z {\texttildelow} 24) for a K+ Lambda photoproduction Regge model with a positive vector coupling and a negative tensor coupling constant for the K+(892) trajectory, and a rotating phase factor for both trajectories. Using the chi\^{ }2 minimization method, one could not draw this conclusion from the same dataset.},
  author       = {De Cruz, Lesley and Ireland, David G and Vancraeyveld, Pieter and Ryckebusch, Jan},
  editor       = {Wro\'{n}ska, Aleksandra and Kistryn, Stanis\unmatched{0142}aw and Machner, Hartmut and Guaraldo, Carlo},
  issn         = {0217-751X},
  journal      = {INTERNATIONAL JOURNAL OF MODERN PHYSICS A},
  keyword      = {Regge phenomenology,Bayesian inference,Model selection,PHOTOPRODUCTION,HYDROGEN,16-GEV},
  language     = {eng},
  location     = {Krakow, Poland},
  number       = {3-4},
  pages        = {642--644},
  title        = {Bayesian model selection for electromagnetic kaon production on the nucleon},
  url          = {http://dx.doi.org/10.1142/S0217751X11052323},
  volume       = {26},
  year         = {2011},
}

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