Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-06-06
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 4 figures, the manuscript is divided into 4 sections, 5 appendixes are added, the text is enriched by the more detail
Scientific paper
An approach to the extraction of the two-photon exchange (TPE) correction from elastic $ep$ scattering data is presented. The cross section, polarization transfer (PT), and charge asymmetry data are considered. It is assumed that the TPE correction to the PT data is negligible. The form factors and TPE correcting term are given by one multidimensional function approximated by the feed forward neural network (NN). To find a model-independent approximation the Bayesian framework for the NNs is adapted. A large number of different parametrizations is considered. The most optimal model is indicated by the Bayesian algorithm. The obtained fit of the TPE correction behaves linearly in epsilon but it has a nontrivial Q2 dependence. A strong dependence of the TPE fit on the choice of parametrization is observed.
No associations
LandOfFree
Two-Photon Exchange Effect Studied with Neural Networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Two-Photon Exchange Effect Studied with Neural Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-Photon Exchange Effect Studied with Neural Networks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-24964