The JHF-Kamioka neutrino project

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dc.creatorItow, Y.
dc.creatorKajita, T.
dc.creatorKaneyuki, K.
dc.creatorShiozawa, M.
dc.creatorTotsuka, Y.
dc.creatorHayato, Y.
dc.creatorIshida, T.
dc.creatorIshii, T.
dc.creatorKobayashi, T.
dc.creatorMaruyama, T.
dc.creatorNakamura, K.
dc.creatorObayashi, Y.
dc.creatorOyama, Y.
dc.creatorSakuda, M.
dc.creatorYoshida, M.
dc.creatorAoki, S.
dc.creatorHara, T.
dc.creatorSuzuki, A.
dc.creatorIchikawa, A.
dc.creatorNakaya, T.
dc.creatorNishikawa, K.
dc.creatorHasegawa, T.
dc.creatorIshihara, K.
dc.creatorSuzuki, A.
dc.creatorKonaka, A.
dc.date2001-06-05
dc.date.accessioned2026-07-07T03:34:35Z
dc.date.available2026-07-07T03:34:35Z
dc.descriptionThe JHF-Kamioka neutrino project is a second generation long base line neutrino oscillation experiment that probes physics beyond the Standard Model by high precision measurements of the neutrino masses and mixing. A high intensity narrow band neutrino beam is produced by secondary pions created by a high intensity proton synchrotron at JHF (JAERI). The neutrino energy is tuned to the oscillation maximum at ~1 GeV for a baseline length of 295 km towards the world largest water Cerenkov detector, Super-Kamiokande. Its excellent energy resolution and particle identification enable the reconstruction of the initial neutrino energy, which is compared with the narrow band neutrino energy, through the quasi-elastic interaction. The physics goal of the first phase is an order of magnitude better precision in the nu_mu to nu_tau oscillation measurement (delta(Delta m_23^2)=10^-4 eV^2 and delta(sin^22theta_23)=0.01), a factor of 20 more sensitive search in the nu_mu to nu_e appearance (sin^22theta_{mu e} ~ 0.5sin^22theta_{13}>0.003), and a confirmation of the nu_mu to nu_tau oscillation or discovery of sterile neutrinos by detecting the neutral current events. In the second phase, an upgrade of the accelerator from 0.75 MW to 4 MW in beam power and the construction of 1 Mt Hyper-Kamiokande detector at Kamioka site are envisaged. Another order of magnitude improvement in the nu_mu to nu_e oscillation sensitivity, a sensitive search of the CP violation in the lepton sector (CP phase "delta" down to 10-20 degrees), and an order of magnitude improvement in the proton decay sensitivity is also expected.
dc.description29 pages, 23 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0106019
dc.identifierhttp://arxiv.org/abs/hep-ex/0106019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/37038
dc.subjectHigh Energy Physics - Experiment
dc.titleThe JHF-Kamioka neutrino project
dc.typetext

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