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Charged Particle Multiplicities in Charged-Current Neutrino and Anti-Neutrino Nucleus Interactions

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Kayis-Topaksu, A. Favart, Denis [UCL]

(eng) The CHORUS experiment, designed to search for $\nu_{\mu}\to\nu_{\tau}$ oscillations, consists of a nuclear emulsion target and electronic detectors. In this paper, results on the production of charged particles in a small sample of charged-current neutrino-- and anti-neutrino--nucleus interactions at high energy are presented. For each event, the emission angle and the ionization features of the charged particles produced in the interaction are recorded, while the standard kinematic variables are reconstructed using the electronic detectors. The average multiplicities for charged tracks, the pseudo-rapidity distributions, the dispersion in the multiplicity of charged particles and the KNO scaling are studied in different kinematical regions. A study of quasi-elastic topologies performed for the first time in nuclear emulsions is also reported. The results are presented in a form suitable for use in the validation of Monte Carlo generators of neutrino--nucleus interactions. Comment: 17 pages, 5 figures

Document type Article de périodique (Journal article)
Publication date 2007
Journal information "European Physical Journal C. Particles and Fields" - Vol. C51, p. 775-785 (2007)
Peer reviewed yes
e-issn 1434-6052
issn 1434-6044
Publication status Publié
Affiliation UCL
Keywords High Energy Physics - Experiment
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Bibliographic reference Kayis-Topaksu, A. ; Favart, Denis ; et. al. Charged Particle Multiplicities in Charged-Current Neutrino and Anti-Neutrino Nucleus Interactions. In: European Physical Journal C. Particles and Fields, Vol. C51, p. 775-785 (2007)
Permanent URL http://hdl.handle.net/2078/31128