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NSR database version of April 26, 2024.

Search: Author = Y.Obara

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2022IS02      Phys.Rev. C 105, 045201 (2022)

T.Ishikawa, A.Fix, H.Fujimura, H.Fukasawa, R.Hashimoto, Q.He, Y.Honda, T.Iwata, S.Kaida, J.Kasagi, A.Kawano, S.Kuwasaki, K.Maeda, S.Masumoto, M.Miyabe, F.Miyahara, K.Mochizuki, N.Muramatsu, A.Nakamura, K.Nawa, Y.Obara, S.Ogushi, Y.Okada, K.Okamura, Y.Onodera, K.Ozawa, Y.Sakamoto, M.Sato, H.Shimizu, H.Sugai, K.Suzuki, Y.Tajima, S.Takahashi, Y.Taniguchi, Y.Tsuchikawa, H.Yamazaki, R.Yamazaki, H.Y.Yoshida

Coherent photoproduction of the neutral-pion and η-meson on the deuteron at incident energies below 1.15 GeV

NUCLEAR REACTIONS ²H(γ, π⁰ηd), E<1.15 GeV; measured reaction products, angular distributions, Eγ, Iγ, deuteron spectra, (particle)γ-coin; deduced σ(E), σ(θ, E), ηd scattering parameters, invariant mass. Comparison to other experimental data and model estimations. FOREST setup consisting of three different electromagnetic calorimeters (EMCs): 192 pure cesium iodide (CsI) crystals for the forward EMC, 252 lead scintillating-fiber sandwich modules for the central, and 62 lead-glass Cherenkov counters for the backward. Bremsstrahlung beam from the STretcher Booster (STB) ring synchrotron at the Research Center for Electron Photon Science (ELPH), Tohoku University, Japan.

doi: 10.1103/PhysRevC.105.045201
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2021IS10      Phys.Rev. C 104, L052201 (2021)

T.Ishikawa, H.Fujimura, H.Fukasawa, R.Hashimoto, Q.He, Y.Honda, T.Iwata, S.Kaida, J.Kasagi, A.Kawano, S.Kuwasaki, K.Maeda, S.Masumoto, M.Miyabe, F.Miyahara, K.Mochizuki, N.Muramatsu, A.Nakamura, K.Nawa, Y.Obara, S.Ogushi, Y.Okada, K.Okamura, Y.Onodera, K.Ozawa, Y.Sakamoto, M.Sato, H.Shimizu, H.Sugai, K.Suzuki, Y.Tajima, S.Takahashi, Y.Taniguchi, Y.Tsuchikawa, H.Yamazaki, R.Yamazaki, H.Y.Yoshida

Resonance-like structure near the ηd threshold in the γd → π⁰ηd reaction

NUCLEAR REACTIONS ²H(γ, π⁰ηd), E=0.75-1.15 GeV; measured final-state particles, total and differential σ(E) as a function of the incident photon energy, angular distributions for π⁰ with respect to the photon beam using FOREST detector consisting of three different electromagnetic calorimeters (EMCs) at the Research Center for Electron Photon Science (ELPH), Tohoku University; deduced S-wave resonance states and widths, strong enhancement near the ηd threshold. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.104.L052201
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