Statistical pattern recognition: application to νμ→ντ oscillation searches based on kinematic criteria Bueno Villar, Antonio Martínez de la Ossa, Alberto Navas Concha, Sergio Rubbia, A. Neutrino Detectors Telescopes Classic statistical techniques (like the multi-dimensional likelihood and the Fisher discriminant method) together with Multi-layer Perceptron and Learning Vector Quantization Neural Networks have been systematically used in order to find the best sensitivity when searching for νμ→ντ oscillations. We discovered that for a general direct ντ appearance search based on kinematic criteria: a) An optimal discrimination power is obtained using only three variables (Evisible, PmissT and ρl) and their correlations. Increasing the number of variables (or combinations of variables) only increases the complexity of the problem, but does not result in a sensible change of the expected sensitivity. b) The multi-layer perceptron approach offers the best performance. As an example to assert numerically those points, we have considered the problem of ντ appearance at the CNGS beam using a Liquid Argon TPC detector. 2013-11-07T11:35:34Z 2013-11-07T11:35:34Z 2004 journal article Bueno, A.; et al. Statistical pattern recognition: application to νμ→ντ oscillation searches based on kinematic criteria. Journal of High Energy Physics, 11: 014 (2004). [http://hdl.handle.net/10481/29072] 1029-8479 doi: 10.1088/1126-6708/2004/11/014 arXiv:hep-ph/0407013v1 http://hdl.handle.net/10481/29072 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Scuola Internazionale Superiore di Studi Avanzati (SISSA)