The new experiment WAGASCI for water to hydrocarbon neutrino cross section measurement using the J-PARC beam

International Conference on Particle Physics and Astrophysics

Ovsiannikova, T.^1,2 ; Antonova, M.^1,2 ; Bronner, C.^3 ; Blondel, A.^4 ; Bonnemaison, A.^5 ; Cornat, R.^5 ; Cadoux, F.^4 ; Chikuma, N.^6 ; Cao, S.^7 ; Drapier, O.^5 ; Izmaylov, A.^1,8 ; Ichikawa, A.K.^7 ; Ferreira, O.^5 ; Favre, Y.^7 ; Gastaldi, F.^5 ; Gonin, M.^5 ; Hayashino, T.^7 ; Hosomi, F.^6 ; Hayato, Y.^9 ; Koga, T.^6 ; Kondo, K.^7 ; Kin, K.^10 ; Kudenko, Y.^1,2,11 ; Khabibullin, M.^1 ; Khotjantsev, A.^1 ; Minamino, A.^7 ; Mueller, Th A^5 ; Mefodiev, A.^1,11 ; Mineev, O.^1 ; Nakamura, K.^7 ; Nakaya, T.^7 ; Noah, E.^4 ; Patel, N.^7 ; Quilain, B.^7 ; Rayner, M.^4 ; Seiya, Y.^10 ; Suvorov, S.^1,11 ; Yershov, N.^1 ; Yamamoto, M.^7 ; Yamamoto, K.^10 ; Yokoyama, M.^6

Institute for Nuclear Research, Russian Academy of Sciences, Russia^1

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow

115409, Russia^2

University of Tokyo, Kavli Institute for the Physics and Mathematics of the Universe, Japan^3

Geneva University, Switzerland^4

LLR Ecole Polytechnique, France^5

University of Tokyo, Japan^6

Kyoto University, Japan^7

Instituto de Fsica Corpuscular (IFIC CSIC), Spain^8

University of Tokyo, Institute for Cosmic Ray Research, Japan

(10) Osaka City University, Japan

(11) Moscow Institute of Physics and Technology (State University), Russia^9

关键词: Cross-section measurement;    High-precision measurement;    Neutrino experiments;    Neutrino interactions;    Neutrino oscillations;    Oscillation analysis;    Scintillator detector;    Systematic uncertainties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/1/012030/pdf
DOI  :  10.1088/1742-6596/675/1/012030

来源: IOP

【 摘 要 】

The T2K (Tokai-to-Kamioka) is a long baseline neutrino experiment designed to study various parameters that rule neutrino oscillations, with an intense beam of muon neutrinos. A near detector complex (ND280) is used to constrain non-oscillated flux and hence to predict the expected number of events in the far detector (Super-Kamiokande). The difference in the target material between the far (water) and near (scintillator, hydrocarbon) detectors leads to the main non-canceling systematic uncertainty for the oscillation analysis. In order to reduce this uncertainty a new water grid and scintillator detector, WAGASCI, has been proposed. The detector will be operated at the J-PARC neutrino beam line with the main physics goal to measure the charged current neutrino cross section ratio between water and hydrocarbon with a few percent accuracy. Further physics program may include high-precision measurements of different charged current neutrino interaction channels. The concept of the new detector will be covered together with the actual construction plan.