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dc.contributor.authorCatanesi, M. G.en_US
dc.contributor.authorCervera Villanueva, Anselmoen_US
dc.contributor.authorNovella, Pauen_US
dc.contributor.authorBurguet Castell, Jordien_US
dc.contributor.authorGómez Cadenas, Juan Joséen_US
dc.contributor.authorSorel, Michelen_US
dc.contributor.authorTornero, Ana Maríaen_US
dc.contributor.authorArce, Pedroen_US
dc.identifier.citationNuclear Instruments & Methods in Physics Research Section A - Accelerators, Spectrometers, Detectors and Associated Equipment 572(2): 899-921 (2007)en_US
dc.description23 páginas, 26 figuras, 5 tablas.-- PACS nrs.: 95.55.Vj; 28.85.+c; 07.75.+h; 07.05.Kf; 14.40.Aq.-- et al.en_US
dc.description.abstractThe particle identification (PID) methods used for the calculation of secondary pion yields with the HARP forward spectrometer are presented. Information from time of flight and Cherenkov detectors is combined using likelihood techniques. The efficiencies and purities associated with the different PID selection criteria are obtained from the data. For the proton-aluminium interactions at 12.9 GeV/c incident momentum, the PID efficiencies for positive pions are 86% in the momentum range below 2 GeV/c, 92% between 2 and 3 GeV/c and 98% in the momentum range above 3 GeV/c. The purity of the selection is better than 92% for all momenta. Special emphasis has been put on understanding the main error sources. The final PID uncertainty on the pion yield is 3.3%.en_US
dc.description.sponsorshipWe gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning, and operation. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow), and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support.-
dc.format.extent2373 bytes-
dc.subjectChorus Experimenten_US
dc.subjectParticle identification-
dc.subjectThreshold Cherenkov-
dc.subjectTime of flight-
dc.subjectHadron production-
dc.titleParticle identification algorithms for the HARP forward spectrometeren_US
dc.description.peerreviewedPeer revieweden_US
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