TY - JOUR
T1 - A new experimental method to search for T-violation using a sequential CeF3 scintillating calorimeter
AU - Shimizu, S.
AU - Horie, K.
AU - Igarashi, Y.
AU - Ito, H.
AU - Kamada, K.
AU - Kimura, S.
AU - Kobayashi, A.
AU - Mihara, M.
AU - Yamaji, A.
AU - Yoshikawa, A.
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/11/21
Y1 - 2019/11/21
N2 - A new experimental method to search for T-violating transverse muon polarization (PT) in the K+→π0μ+ν (Kμ3) decay is proposed. In this new experiment, the measurements of the μ+ momentum vector, the π0 momentum vector, and the μ+ polarization will be performed by the same electro-magnetic calorimeter. One of key issues is the choice of a scintillation material which can preserve the μ+ spin polarization for several μ+ lifetimes. A test experiment to measure the residual μ+ polarization in a CeF3 scintillating crystal was performed at J-PARC Material and Life Science Facility (MLF). We concluded that the residual μ+ polarization in CeF3 is high enough to perform the new T-violation experiment.
AB - A new experimental method to search for T-violating transverse muon polarization (PT) in the K+→π0μ+ν (Kμ3) decay is proposed. In this new experiment, the measurements of the μ+ momentum vector, the π0 momentum vector, and the μ+ polarization will be performed by the same electro-magnetic calorimeter. One of key issues is the choice of a scintillation material which can preserve the μ+ spin polarization for several μ+ lifetimes. A test experiment to measure the residual μ+ polarization in a CeF3 scintillating crystal was performed at J-PARC Material and Life Science Facility (MLF). We concluded that the residual μ+ polarization in CeF3 is high enough to perform the new T-violation experiment.
KW - Kaon decay
KW - Muon spin polarization
KW - Muon spin preservation in scintillating materials
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U2 - 10.1016/j.nima.2019.162587
DO - 10.1016/j.nima.2019.162587
M3 - Article
AN - SCOPUS:85071288410
VL - 945
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
M1 - 162587
ER -