| Thème(s) : |
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Physique/Physique des Hautes Energies - Phénoménologie
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| Titre : |
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Neutrino-oxygen interactions role of nuclear physics in the atmospheric neutrino anomaly |
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| Auteur : |
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J. Marteau1, J. Delorme1, M. Ericson1 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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Théorie |
| Résumé : |
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The apparent anomaly in the ratio of muon to electron atmospheric neutrinos first observed by Kamiokande and IMB has been confirmed by Super-Kamiokande and Soudan-2. The experimental analysis, including the asymmetry in the zenithal distributions of the $ \mu-\mathrm{type} $ events in Super-Kamiokande gives a strong support to the neutrino oscillation hypothesis to solve the anomaly. In this work we are interested by the role of nuclear physics in the neutrino-oxygen reactions used to detect the atmospheric neutrinos. We point out that multi-nucleon excitations of np-nh type and that nuclear correlations could modify an experimental analysis à la Super-Kamiokande because they lead to a substantial enhancement of the number of 1 \v{C}erenkov ring retained events. |
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| Type de publication : |
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Communications sans actes |
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| Date de la présentation : |
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1999 |
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| Nom du colloque : |
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Rencontres de Moriond session on Electroweak Interactions and Unified Theories |
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| Ville du colloque : |
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Les Houches |
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| Pays du colloque : |
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France |
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| Date du colloque (début) : |
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13/03/1999 |
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| Date du colloque (fin) : |
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20/03/1999 |
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| Identifiant local : |
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LYCEN 9956 |
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