Speaker
Taichiro Koga
(University of Tokyo)
Description
For a precise study of neutrino oscillation, a good understanding of neutrino interactions on nucleus is indispensable. In order to reduce the uncertainty in the neutrino interaction, we propose a new experiment at the J-PARC neutrino beamline to measure the ratio of charged current neutrino cross sections between water and plastic (CH) with an accuracy of a few percent. The energy of the neutrino is around 600 MeV. This measurement may reduce major systematic errors in neutrino oscillation analysis of the T2K experiment. The T2K near detector adopts plastic scintillators as a main target material of neutrino interactions, while the far detector, Super-Kamiokande, adopts water. The difference of the target materials induces a systematic uncertainty on neutrino cross section that is one of the major systematic errors in neutrino oscillation analysis. We will present the design of the new detector optimized by using the Monte Carlo simulation and R&D of detector components, grid-like plastic scintillators placed in water and low noise MPPCs manufactured by Hamamatsu Photonics.
Primary authors
Taichiro Koga
(Tokyo University)
Taichiro Koga
(University of Tokyo)
Co-authors
A. Bonnemaison
(Ecole Polytechnique)
A. Ichikawa
(Kyoto University)
A. Izmaylov
(Institute for Nuclear Research of the Russian Academy of Sciences)
A. Khotjantsev
(Institute for Nuclear Research of the Russian Academy of Sciences)
A. Mefodiev
(Institute for Nuclear Research of the Russian Academy of Sciences)
A. Minamino
(Kyoto University)
B. Quilain
(Ecole Polytechnique)
I. Ayzenberg
(Institute for Nuclear Research of the Russian Academy of Sciences)
I. Karpikov
(Institute for Nuclear Research of the Russian Academy of Sciences)
K. Nakamura
(Kyoto University)
K. Wakamatsu
(Osaka City University)
K. Yamamoto
(Osaka City University)
K. Yoshida
(Kyoto University)
M. Gonin
(Ecole Polytechnique)
M. Khabibullin
(Institute for Nuclear Research of the Russian Academy of Sciences)
M. Yokoyama
(University of Tokyo)
N. Chikuma
(University of Tokyo)
N. Yershov
(Institute for Nuclear Research of the Russian Academy of Sciences)
O. Drapier
(Ecole Polytechnique)
O. Ferreira
(Ecole Polytechnique)
O. Mineev
(Institute for Nuclear Research of the Russian Academy of Sciences)
S. Martynenko
(Institute for Nuclear Research of the Russian Academy of Sciences)
S. Suvorov
(Institute for Nuclear Research of the Russian Academy of Sciences)
T. Hayashino
(Kyoto University)
T. Nakaya
(Kyoto University)
T. Ovsjannikova
(Institute for Nuclear Research of the Russian Academy of Sciences)
Th. Mueller
(Ecole Polytechnique)
Y. Hayato
(University of Tokyo)
Y. Kudenko
(Institute for Nuclear Research of the Russian Academy of Sciences)
Y. Seiya
(Osaka City University)