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212 results on '"Fujioka, N."'

1. Measurement of differential cross sections for $\Sigma^+p$ elastic scattering in the momentum range 0.44-0.80 GeV/c

Author

Collaboration, J-PARC E40, Nanamura, T., Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T. K., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
Nuclear Experiment
Abstract

We performed a novel $\Sigma^+ p$ scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 $\Sigma^+ p$ elastic scattering events were identified from $4.9 \times 10^7$ tagged $\Sigma^+$ particles in the $\Sigma^+$ momentum range 0.44 -- 0.80 GeV/$c$. The differential cross sections of the $\Sigma^+ p$ elastic scattering were derived with much better precision than in previous experiments. The obtained differential cross sections were approximately 2 mb/sr or less, which were not as large as those predicted by the fss2 and FSS models based on the quark cluster model in the short-range region. By performing phase-shift analyses for the obtained differential cross sections, we experimentally derived the phase shifts of the $^3 S_1$ and $^1 P_1$ channels for the first time. The phase shift of the $^3 S_1$ channel, where a large repulsive core was predicted owing to the Pauli effect between quarks, was evaluated as $20^\circ<|\delta_{^3S_1}|<35^\circ$. If the sign of $\delta_{^3S_1}$ is assumed to be negative, the interaction in this channel is moderately repulsive, as the Nijmegen extended-sort-core models predicted.

Published
2022

2. Precise measurement of differential cross sections of the {\Sigma}-p --> {\Lambda} n reaction in momentum range 470-650 MeV/c

Author

Collaboration, J-PARC E40, Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The differential cross sections of the {\Sigma}-p --> {\Lambda} n reaction were measured accurately for the {\Sigma}- momentum (p_{{\Sigma}}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Facility. Precise angular information about the {\Sigma}-p --> {\Lambda} n reaction was obtained for the first time by detecting approximately 100 reaction events at each angular step of {\Delta}cos{\theta} = 0.1. The obtained differential cross sections show slightly forward-peaking structure in the measured momentum regions.The cross sections integrated for -0.7 < cos{\theta} < 1.0 were obtained as 22.5 +- 0.68 (stat.) +- 0.65 (syst.) mb and 15.8 +-0.83(stat.) +- 0.52 (syst.) mb for 470

Published
2021

3. Development and application of CATCH: A cylindrical active tracker and calorimeter system for hyperon-proton scattering experiments

Author

Akazawa, Y., Chiga, N., Fujioka, N., Hayakawa, S. H., Honda, R., Ikeda, M., Matsuda, K., Miwa, K., Nakada, Y., Nanamura, T., Ozawa, S., Shiozaki, T., Tamura, H., and Umetsu, H.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

In this study, we developed a new proton detector system called CATCH, which was designed for a scattering experiment involving a $\Sigma$ hyperon and a proton (J-PARC E40). CATCH is a cylindrical detector system covering an inner target that can be used to measure the trajectory and energy of a proton emitted from the target for the kinematic identification of a $\Sigma$p scattering event. It comprises a cylindrical fiber tracker (CFT), a bismuth germanate (BGO) calorimeter, and a plastic scintillator hodoscope (PiID), which are coaxially arranged from the inner to the outer sides. The CFT is a tracking detector consisting of 5,000 scintillation fibers, and it has two types of cylindrical layers in which the fibers are arranged in straight and spiral configurations. 24 BGO crystals are placed around the CFT to measure the kinetic energy of the recoil proton. The PiID is used to determine whether the recoil proton is stopped in the BGO calorimeter. We performed proton-proton (pp) and proton-carbon (pC) scattering experiments using an 80 MeV proton beam to evaluate the performance of CATCH. The total energy resolution for the recoil proton was 2.8 MeV in $\sigma$ for the entire angular region after the energy calibrations of the BGO calorimeter and the CFT. The angular resolution of the CFT was 1.27 degrees in $\sigma$ for the proton, and the time resolution was more than 1.8 ns in $\sigma$. We also developed an analysis method for deriving the cross section of the pp scattering using CATCH. The obtained relative differential cross section for the pp elastic scattering was consistent with that obtained by reliable partial wave analysis, and the systematic error was maintained at below 10%. These performance results satisfy our requirements for a reliable detection system for the $\Sigma$p scattering experiment conducted at J-PARC .

Published
2021
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4. Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

Author

Collaboration, J-PARC E40, Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
Nuclear Experiment
Abstract

A high statistics $\Sigma p$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $\Sigma^{-}$ running in a liquid hydrogen target were accumulated by detecting the $\pi^{-}p \to K^{+}\Sigma^{-}$ reaction with a high intensity $\pi^{-}$ beam of 20 M/spill. Differential cross sections of the $\Sigma^{-}p$ elastic scattering were derived with a drastically improved accuracy by identifying the largest statistics of about 4,500 events from 1.72 $\times$ $10^{7}$ $\Sigma^{-}$. The derived differential cross section shows a clear forward-peaking angular distribution for a $\Sigma^{-}$ momentum range from 470 to 850 MeV/$c$. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.

Published
2021

5. Observation of Coulomb-assisted nuclear bound state of $\Xi^-$-$^{14}$N system

Author

Hayakawa, S. H., Agari, K., Ahn, J. K., Akaishi, T., Akazawa, Y., Ashikaga, S., Bassalleck, B., Bleser, S., Ekawa, H., Endo, Y., Fujikawa, Y., Fujioka, N., Fujita, M., Goto, R., Han, Y., Hasegawa, S., Hashimoto, T., Hayakawa, T., Hayata, E., Hicks, K., Hirose, E., Hirose, M., Honda, R., Hoshino, K., Hoshino, S., Hosomi, K., Hwang, S. H., Ichikawa, Y., Ichikawa, M., Imai, K., Inaba, K., Ishikawa, Y., Ito, H., Ito, K., Jung, W. S., Kanatsuki, S., Kanauchi, H., Kasagi, A., Kawai, T., Kim, M. H., Kim, S. H., Kinbara, S., Kiuchi, R., Kobayashi, H., Kobayashi, K., Koike, T., Koshikawa, A., Lee, J. Y., Ma, T. L., Matsumoto, S. Y., Minakawa, M., Miwa, K., Moe, A. T., Moon, T. J., Moritsu, M., Nagase, Y., Nakada, Y., Nakagawa, M., Nakashima, D., Nakazawa, K., Nanamura, T., Naruki, M., Nyaw, A. N. L., Ogura, Y., Ohashi, M., Oue, K., Ozawa, S., Pochodzalla, J., Ryu, S. Y., Sako, H., Sato, S., Sato, Y., Schupp, F., Shirotori, K., Soe, M. M., Soe, M. K., Sohn, J. Y., Sugimura, H., Suzuki, K. N., Takahashi, H., Takahashi, T., Takeda, T., Tamura, H., Tanida, K., Theint, A. M. M., Tint, K. T., Toyama, Y., Ukai, M., Umezaki, E., Watabe, T., Watanabe, K., Yamamoto, T. O., Yang, S. B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zhang, D. H., and Zhang, Z.

Subjects
Nuclear Experiment
Abstract

In an emulsion-counter hybrid experiment performed at J-PARC, a $\Xi^-$ absorption event was observed which decayed into twin single-$\Lambda$ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as $\Xi^{-} + ^{14}$N$\ \rightarrow\ ^{10}_\Lambda$Be + $^5_\Lambda$He. For the binding energy of the $\Xi^{-}$ hyperon in the $\Xi^-$-$^{14}$N system a value of $1.27 \pm 0.21$ MeV was deduced. The energy level of $\Xi^-$ is likely a nuclear $1p$ state which indicates a weak ${\Xi}N$-$\Lambda\Lambda$ coupling.

Published
2020
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6. Serum Free Radical Scavenging Capacity Profiles of Patients with Chronic Obstructive Pulmonary Disease

Author

Sakaguchi K, Yoshikawa M, Fujita Y, Yamamoto Y, Ibaraki T, Fujioka N, Osa T, Yamauchi M, Ichikawa H, and Muro S

Subjects
oxidative stress, free radicals, the multiple free-radical scavenging method, pathophysiology, exacerbations, prognosis, Diseases of the respiratory system, RC705-779
Abstract

Kazuhiro Sakaguchi,1 Masanori Yoshikawa,1 Yukio Fujita,1 Yoshifumi Yamamoto,1 Takahiro Ibaraki,1 Nobuhiro Fujioka,1 Takao Osa,1 Motoo Yamauchi,1 Hiroshi Ichikawa,2 Shigeo Muro1 1Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan; 2Major of Medical Life Systems, Graduate School of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, JapanCorrespondence: Masanori Yoshikawa, Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan, Tel +81-744-22-3051, Fax +81-744-29-0907, Email noriy@naramed-u.ac.jpBackground: Oxidative stress is an important mechanism for the development and progression of chronic obstructive pulmonary disease (COPD). It may also contribute to systemic manifestation in patients with COPD. Reactive oxygen species (ROS) including free radicals play a crucial role in oxidative stress in COPD. The aims of this study were to determine serum scavenging capacity profile against multiple free radicals and to evaluate its correlation with pathophysiology, exacerbations, and prognosis in patients with COPD.Methods: Serum scavenging capacity profile against multiple free radicals comprising hydroxyl radical (•OH), superoxide radical (O2−•), alkoxy radical (RO•), methyl radical (•CH3), alkylperoxyl radical (ROO•), and singlet oxygen (1O2) was assessed using the multiple free-radical scavenging method in 37 patients with COPD (mean age, 71 years; mean forced expiratory volume in 1 s, 55.2% predicted). The severity of emphysema was evaluated by Goddard classification on chest computed tomography. Exacerbations were recorded prospectively for 1 year and the overall mortality was assessed 5 years after the initial assessment.Results: •OH scavenging capacity was significantly decreased (p < 0.05) and O2−• and •CH3 scavenging capacity tended to decrease in patients with COPD compared to that in healthy controls. On the other hand, ROO• scavenging capacity tended to increase. In addition, RO• scavenging capacity was associated with severity of emphysema (p < 0.05) and exacerbation frequency (p < 0.02). There was a difference in the profile of the scavenging capacity between survived and deceased patients with COPD for 5 years after initial assessment.Conclusion: Characteristic profile of free radical scavenging capacity can provide insight into the pathophysiology and prognosis of patients with COPD.Keywords: oxidative stress, free radicals, the multiple free-radical scavenging method, pathophysiology, exacerbations, prognosis

Published
2023

7. Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

Author

Ekawa, H., Agari, K., Ahn, J. K., Akaishi, T., Akazawa, Y., Ashikaga, S., Bassalleck, B., Bleser, S., Endo, Y., Fujikawa, Y., Fujioka, N., Fujita, M., Goto, R., Han, Y., Hasegawa, S., Hashimoto, T., Hayakawa, S. H., Hayakawa, T., Hayata, E., Hicks, K., Hirose, E., Hirose, M., Honda, R., Hoshino, K., Hoshino, S., Hosomi, K., Hwang, S. H., Ichikawa, Y., Ichikawa, M., Ieiri, M., Imai, K., Inaba, K., Ishikawa, Y., Iskendir, A., Ito, H., Ito, K., Jung, W. S., Kanatsuki, S., Kanauchi, H., Kasagi, A., Kawai, T., Kim, M. H., Kim, S. H., Kinbara, S., Kiuchi, R., Kobayashi, H., Kobayashi, K., Koike, T., Koshikawa, A., Lee, J. Y., Lee, J. W., Ma, T. L., Matsumoto, S. Y., Minakawa, M., Miwa, K., Moe, A. T., Moon, T. J., Moritsu, M., Nagase, Y., Nakada, Y., Nakagawa, M., Nakashima, D., Nakazawa, K., Nanamura, T., Naruki, M., Nyaw, A. N. L., Ogura, Y., Ohashi, M., Oue, K., Ozawa, S., Pochodzalla, J., Ryu, S. Y., Sako, H., Sasaki, Y., Sato, S., Sato, Y., Schupp, F., Shirotori, K., Soe, M. M., Soe, M. K., Sohn, J. Y., Sugimura, H., Suzuki, K. N., Takahashi, H., Takahashi, T., Takahashi, Y., Takeda, T., Tamura, H., Tanida, K., Theint, A. M. M., Tint, K. T., Toyama, Y., Ukai, M., Umezaki, E., Watabe, T., Watanabe, K., Yamamoto, T. O., Yang, S. B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zhang, D. H., and Zhang, Z.

Subjects
Nuclear Experiment
Abstract

A double-$\Lambda$ hypernucleus, ${}_{\Lambda\Lambda}\mathrm{Be}$, was observed by the J-PARC E07 collaboration in nuclear emulsions tagged by the $(K^{-},K^{+})$ reaction. This event was interpreted as a production and decay of $ {}_{\Lambda\Lambda}^{\;10}\mathrm{Be}$, ${}_{\Lambda\Lambda}^{\;11}\mathrm{Be}$, or ${}_{\Lambda\Lambda}^{\;12}\mathrm{Be}^{*}$ via $\Xi^{-}$ capture in ${}^{16}\mathrm{O}$. By assuming the capture in the atomic 3D state, the binding energy of two $\Lambda$ hyperons$\,$($B_{\Lambda\Lambda}$) of these double-$\Lambda$ hypernuclei are obtained to be $15.05 \pm 0.11\,\mathrm{MeV}$, $19.07 \pm 0.11\,\mathrm{MeV}$, and $13.68 \pm 0.11\,\mathrm{MeV}$, respectively. Based on the kinematic fitting, ${}_{\Lambda\Lambda}^{\;11}\mathrm{Be}$ is the most likely explanation for the observed event., Comment: 11 pages, 3 figures

Published
2018
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9. Human Adipose-Derived Mesenchymal Stem Cells Ameliorate Elastase-Induced Emphysema in Mice by Mesenchymal–Epithelial Transition

Author

Fujioka N, Kitabatake M, Ouji-Sageshima N, Ibaraki T, Kumamoto M, Fujita Y, Hontsu S, Yamauchi M, Yoshikawa M, Muro S, and Ito T

Subjects
chronic obstructive pulmonary disease, mesenchymal-epithelial transition, adipose derived mesenchymal stem cell, pulmonary function test, Diseases of the respiratory system, RC705-779
Abstract

Nobuhiro Fujioka,1 Masahiro Kitabatake,2 Noriko Ouji-Sageshima,2 Takahiro Ibaraki,1 Makiko Kumamoto,1 Yukio Fujita,1 Shigeto Hontsu,1 Motoo Yamauchi,1 Masanori Yoshikawa,1 Shigeo Muro,1 Toshihiro Ito2 1Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan; 2Department of Immunology, Nara Medical University, Kashihara, Nara, JapanCorrespondence: Toshihiro ItoDepartment of Immunology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, JapanTel +81-744-22-3051Fax +81-744-29-7503Email toshi-ito@naramed-u.ac.jpPurpose: Chronic obstructive pulmonary disease (COPD) is a worldwide problem because of its high prevalence and mortality. However, there is no fundamental treatment to ameliorate their pathological change in COPD lung. Recently, adipose-derived mesenchymal stem cells (ADSCs) have attracted attention in the field of regenerative medicine to repair damaged organs. Moreover, their utility in treating respiratory diseases has been reported in some animal models. However, the detailed mechanism by which ADSCs improve chronic respiratory diseases, including COPD, remains to be elucidated. We examined whether human ADSCs (hADSCs) ameliorated elastase-induced emphysema and whether hADSCs differentiated into alveolar epithelial cells in a murine model of COPD.Methods: Female SCID-beige mice (6 weeks old) were divided into the following four groups according to whether they received an intratracheal injection of phosphate-buffered saline or porcine pancreatic elastase, and whether they received an intravenous injection of saline or hADSCs 3 days after intratracheal injection; Control group, hADSC group, Elastase group, and Elastase-hADSC group. We evaluated the lung function, assessed histological changes, and compared gene expression between hADSCs isolated from the lung of Elastase-hADSC group and naïve hADSCs 28 days after saline or elastase administration.Results: hADSCs improved the pathogenesis of COPD, including the mean linear intercept and forced expiratory volume, in an elastase-induced emphysema model in mice. Furthermore, hADSCs were observed in the lungs of elastase-treated mice at 25 days after administration. These cells expressed genes related to mesenchymal–epithelial transition and surface markers of alveolar epithelial cells, such as TTF-1, β-catenin, and E-cadherin.Conclusion: hADSCs have the potential to improve the pathogenesis of COPD by differentiating into alveolar epithelial cells by mesenchymal–epithelial transition.Keywords: chronic obstructive pulmonary disease, mesenchymal–epithelial transition, adipose derived mesenchymal stem cell, pulmonary function test

Published
2021

10. Recent progress and future prospects of hyperon nucleon scattering experiment

Author

Miwa Koji, Nanamura Takuya, Sakao Tamao, Ahn J. K., Akazawa Y., Aramaki T., Ashikaga S., Callier S., Chiga N., Choi S. W., Ekawa H., Evtoukhovitch P., Fujioka N., Fujita M., Gogami T., Harada T., Hasegawa S., Hayakawa S. H., Honda R., Hoshino S., Hosomi K., Ichikawa M., Ichikawa Y., Ieiri M., Ikedai M., Imai K., Ishikawa Y., Ishimoto S., Jung W. S., Kajikawa S., Kanauchi H., Kanda H., Kitaoka T., Kang B. M., Kawai H., Kim S. H., Kobayashi K., Koike T., Matsuda K., Matsumoto Y., Nagao S., Nagatomi R., Nakada Y., Nakagawa M., Nakamura I., Naruki M., Ozawa S., Raux L., Rogers T. G., Sakaguchi A., Sako H., Sato S., Shiozaki T., Shirotori K., Suzuki K. N., Suzuki S., Tabata M., Taille C. d. L., Takahashi H., Takahashi T., Takahashi T. N., Tamura H., Tanaka M., Tanida K., Tsamalaidze Z., Ukai M., Umetsu H., Wada S., Yamamoto T. O., Yoshida J., and Yoshimura K.

Subjects
Physics, QC1-999
Abstract

A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ+p, Σ−p elastic scatterings and the Σ−p → Λn scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 GeV/c produced by the π±p → K+Σ± reactions. We successfully measured the differential cross sections of these three channels with a drastically improved accuracy with a fine angular step. These new data will become important experimental constraints to improve the theories of the two-body baryon-baryon interactions. Following this success, we proposed a new experiment to measure the differential cross sections and spin observables by using a highly polarized Λ beam for providing quantitative information on the ΛN interaction. The results of three Σp channels and future prospects of the Λp scattering experiment are described.

Published
2022
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12. MA06.05 Consolidation Nivolumab and Ipilimumab or Nivolumab Alone Following Concurrent Chemoradiation for Patients with Unresectable Stage III NSCLC

Author

Durm, G.A., primary, Mamdani, H., additional, Althouse, S., additional, Jabbour, S., additional, Ganti, A., additional, Jalal, S., additional, Chesney, J., additional, Naidoo, J., additional, Hrinczenko, B., additional, Fidler, M.J., additional, Leal, T., additional, Feldman, L., additional, Fujioka, N., additional, and Hanna, N., additional

Published
2022
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13. Enhancement of Er luminescence in microdisk resonators made of Er,O-codoped GaAs.

Author

Higashi, R., Ogawa, M., Tatebayashi, J., Fujioka, N., Timmerman, D., Ichikawa, S., and Fujiwara, Y.

Subjects
RESONATORS, ELECTRON beam lithography, FINITE difference time domain method, QUALITY factor, AUDITING standards, ELECTRON beams
Abstract

We report on the fabrication and optical characteristics of microdisk (MD) resonators with Er,O-codoped GaAs (GaAs:Er,O) as an active component. MD resonators based on GaAs:Er,O with different sidewall angles are fabricated by electron beam lithography followed by two different processes: dry and wet etching. Numerical simulations using a finite-difference time-domain method demonstrate an increase in the cavity quality (Q) factor of the MDs when sharpening the taper angle of the MDs. Micro-photoluminescence characterization of the MD resonators with excitation by a He–Ne laser reveals an 11.4-fold enhancement of Er-related luminescence and a cavity Q factor of 4.2 × 103. For the MD resonators with tapered sidewalls, further enhancement of Er luminescence and increased Q factor (>9.0 × 103) are observed. [ABSTRACT FROM AUTHOR]

Published
2020
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14. Measurement of differential cross sections for Σ+p elastic scattering in the momentum range 0.44–0.80 GeV/c

Author

Nanamura, T, Miwa, K, Ahn, J K, Akazawa, Y, Aramaki, T, Ashikaga, S, Callier, S, Chiga, N, Choi, S W, Ekawa, H, Evtoukhovitch, P, Fujioka, N, Fujita, M, Gogami, T, Harada, T K, Hasegawa, S, Hayakawa, S H, Honda, R, Hoshino, S, Hosomi, K, Ichikawa, M, Ichikawa, Y, Ieiri, M, Ikeda, M, Imai, K, Ishikawa, Y, Ishimoto, S, Jung, W S, Kajikawa, S, Kanauchi, H, Kanda, H, Kitaoka, T, Kang, B M, Kawai, H, Kim, S H, Kobayashi, K, Koike, T, Matsuda, K, Matsumoto, Y, Nagao, S, Nagatomi, R, Nakada, Y, Nakagawa, M, Nakamura, I, Naruki, M, Ozawa, S, Raux, L, Rogers, T G, Sakaguchi, A, Sakao, T, Sako, H, Sato, S, Shiozaki, T, Shirotori, K, Suzuki, K N, Suzuki, S, Tabata, M, Taille, C d L, Takahashi, H, Takahashi, T, Takahashi, T N, Tamura, H, Tanaka, M, Tanida, K, Tsamalaidze, Z, Ukai, M, Umetsu, H, Wada, S, Yamamoto, T O, Yoshida, J, and Yoshimura, K

Subjects
General Physics and Astronomy, D14, Nuclear Physics
Abstract

We performed a novel Σ⁺+p scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 Σ⁺+p elastic scattering events were identified from 4.9 × 10⁷ tagged Σ⁺+ particles in the Σ⁺+ momentum range 0.44-0.80 GeV/c. The differential cross sections of the Σ⁺+p elastic scattering were derived with much better precision than in previous experiments. The obtained differential cross sections were approximately 2 mb/sr or less, which were not as large as those predicted by the fss2 and FSS models based on the quark cluster model in the short-range region. By performing phase-shift analyses for the obtained differential cross sections, we experimentally derived the phase shifts of the ³S₁ and ¹P₁ channels for the first time. The phase shift of the ³S₁ channel, where a large repulsive core was predicted owing to the Pauli effect between quarks, was evaluated as 20° < |δ₃S₁| < 35°. If the sign of δ₃S₁ is assumed to be negative, the interaction in this channel is moderately repulsive, as the Nijmegen extended-sort-core models predicted., クォーク間の「芯」をとらえた --物質が安定して存在できる理由の理解に貢献--. 京都大学プレスリリース. 2022-09-05.

Published
2022
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Author

20750368, 00415259, Nanamura, T, Miwa, K, Ahn, J K, Akazawa, Y, Aramaki, T, Ashikaga, S, Callier, S, Chiga, N, Choi, S W, Ekawa, H, Evtoukhovitch, P, Fujioka, N, Fujita, M, Gogami, T, Harada, T K, Hasegawa, S, Hayakawa, S H, Honda, R, Hoshino, S, Hosomi, K, Ichikawa, M, Ichikawa, Y, Ieiri, M, Ikeda, M, Imai, K, Ishikawa, Y, Ishimoto, S, Jung, W S, Kajikawa, S, Kanauchi, H, Kanda, H, Kitaoka, T, Kang, B M, Kawai, H, Kim, S H, Kobayashi, K, Koike, T, Matsuda, K, Matsumoto, Y, Nagao, S, Nagatomi, R, Nakada, Y, Nakagawa, M, Nakamura, I, Naruki, M, Ozawa, S, Raux, L, Rogers, T G, Sakaguchi, A, Sakao, T, Sako, H, Sato, S, Shiozaki, T, Shirotori, K, Suzuki, K N, Suzuki, S, Tabata, M, Taille, C d L, Takahashi, H, Takahashi, T, Takahashi, T N, Tamura, H, Tanaka, M, Tanida, K, Tsamalaidze, Z, Ukai, M, Umetsu, H, Wada, S, Yamamoto, T O, Yoshida, J, Yoshimura, K, 20750368, 00415259, Nanamura, T, Miwa, K, Ahn, J K, Akazawa, Y, Aramaki, T, Ashikaga, S, Callier, S, Chiga, N, Choi, S W, Ekawa, H, Evtoukhovitch, P, Fujioka, N, Fujita, M, Gogami, T, Harada, T K, Hasegawa, S, Hayakawa, S H, Honda, R, Hoshino, S, Hosomi, K, Ichikawa, M, Ichikawa, Y, Ieiri, M, Ikeda, M, Imai, K, Ishikawa, Y, Ishimoto, S, Jung, W S, Kajikawa, S, Kanauchi, H, Kanda, H, Kitaoka, T, Kang, B M, Kawai, H, Kim, S H, Kobayashi, K, Koike, T, Matsuda, K, Matsumoto, Y, Nagao, S, Nagatomi, R, Nakada, Y, Nakagawa, M, Nakamura, I, Naruki, M, Ozawa, S, Raux, L, Rogers, T G, Sakaguchi, A, Sakao, T, Sako, H, Sato, S, Shiozaki, T, Shirotori, K, Suzuki, K N, Suzuki, S, Tabata, M, Taille, C d L, Takahashi, H, Takahashi, T, Takahashi, T N, Tamura, H, Tanaka, M, Tanida, K, Tsamalaidze, Z, Ukai, M, Umetsu, H, Wada, S, Yamamoto, T O, Yoshida, J, and Yoshimura, K

Published
2022

17. Measurement of differential cross sections for $Σ^+p$ elastic scattering in the momentum range 0.44-0.80 GeV/c

Author

PARC E40 Collaboration, Nanamura, T., Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T. K., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

We performed a novel $Σ^+ p$ scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 $Σ^+ p$ elastic scattering events were identified from $4.9 \times 10^7$ tagged $Σ^+$ particles in the $Σ^+$ momentum range 0.44 -- 0.80 GeV/$c$. The differential cross sections of the $Σ^+ p$ elastic scattering were derived with much better precision than in previous experiments. The obtained differential cross sections were approximately 2 mb/sr or less, which were not as large as those predicted by the fss2 and FSS models based on the quark cluster model in the short-range region. By performing phase-shift analyses for the obtained differential cross sections, we experimentally derived the phase shifts of the $^3 S_1$ and $^1 P_1$ channels for the first time. The phase shift of the $^3 S_1$ channel, where a large repulsive core was predicted owing to the Pauli effect between quarks, was evaluated as $20^\circ

Published
2022
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18. Precise measurement of differential cross sections of the $\Sigma^-p \to \Lambda n$ reaction in momentum range 470-650 MeV$/c$

Author

Collaboration, J-PARC E40, Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., Yoshimura, K., Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and J-PARC E40

Subjects
Sigma, Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], J-PARC Lab, scattering, interaction, momentum, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], baryon baryon, differential cross section, High Energy Physics::Experiment, hadron, structure, Nuclear Experiment
Abstract

The differential cross sections of the {\Sigma}-p --> {\Lambda} n reaction were measured accurately for the {\Sigma}- momentum (p_{{\Sigma}}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Facility. Precise angular information about the {\Sigma}-p --> {\Lambda} n reaction was obtained for the first time by detecting approximately 100 reaction events at each angular step of {\Delta}cos{\theta} = 0.1. The obtained differential cross sections show slightly forward-peaking structure in the measured momentum regions.The cross sections integrated for -0.7 < cos{\theta} < 1.0 were obtained as 22.5 +- 0.68 (stat.) +- 0.65 (syst.) mb and 15.8 +-0.83(stat.) +- 0.52 (syst.) mb for 470, Comment: arXiv admin note: text overlap with arXiv:2104.13608

Published
2021

19. Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

Author

PARC E40 Collaboration, Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

A high statistics $\Sigma p$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $\Sigma^{-}$ running in a liquid hydrogen target were accumulated by detecting the $\pi^{-}p \to K^{+}\Sigma^{-}$ reaction with a high intensity $\pi^{-}$ beam of 20 M/spill. Differential cross sections of the $\Sigma^{-}p$ elastic scattering were derived with a drastically improved accuracy by identifying the largest statistics of about 4,500 events from 1.72 $\times$ $10^{7}$ $\Sigma^{-}$. The derived differential cross section shows a clear forward-peaking angular distribution for a $\Sigma^{-}$ momentum range from 470 to 850 MeV/$c$. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.

Published
2021

20. Measurement of the differential cross sections of the Σ−p elastic scattering in momentum range 470 to 850 MeV/c

Author

Miwa, K., Ahn, J.K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S.W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S.H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W.S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B.M., Kawai, H., Kim, S.H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T.G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K.N., Suzuki, S., Tabata, M., De La Taille, C., Takahashi, H., Takahashi, T.N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T.O., Yoshida, J., Yoshimura, K., Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and J-PARC E40

Subjects
differential cross section: measured, hydrogen: liquid: target, statistics, +K%2B+Sigma%22">pi- p --> K+ Sigma, J-PARC Lab, p Sigma: elastic scattering, nucleon hyperon: interaction, angular distribution, pi: beam, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], baryon baryon: interaction, experimental results
Abstract

International audience; A high statistics Σp scattering experiment is performed at the J-PARC Hadron Experimental Facility. Momentum-tagged Σ−s running in a liquid hydrogen target are accumulated by detecting the π−p→K+Σ− reaction with a high intensity π− beam of 20 M/spill. The differential cross sections of the Σ−p elastic scattering were derived with a drastically improved accuracy by identifying approximately 4500 events from 1.72×107Σ−. The derived differential cross section shows a clear forward-peaking angular distribution for a Σ− momentum range from 470 to 850 MeV/c. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.

Published
2021
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21. Precise measurement of differential cross sections of the ��-p --> �� n reaction in momentum range 470-650 MeV/c

Author

PARC E40 Collaboration, Miwa, K., Ahn, J. K., Akazawa, Y., Aramaki, T., Ashikaga, S., Callier, S., Chiga, N., Choi, S. W., Ekawa, H., Evtoukhovitch, P., Fujioka, N., Fujita, M., Gogami, T., Harada, T., Hasegawa, S., Hayakawa, S. H., Honda, R., Hoshino, S., Hosomi, K., Ichikawa, M., Ichikawa, Y., Ieiri, M., Ikeda, M., Imai, K., Ishikawa, Y., Ishimoto, S., Jung, W. S., Kajikawa, S., Kanauchi, H., Kanda, H., Kitaoka, T., Kang, B. M., Kawai, H., Kim, S. H., Kobayashi, K., Koike, T., Matsuda, K., Matsumoto, Y., Nagao, S., Nagatomi, R., Nakada, Y., Nakagawa, M., Nakamura, I., Nanamura, T., Naruki, M., Ozawa, S., Raux, L., Rogers, T. G., Sakaguchi, A., Sakao, T., Sako, H., Sato, S., Shiozaki, T., Shirotori, K., Suzuki, K. N., Suzuki, S., Tabata, M., Taille, C. d. L., Takahashi, H., Takahashi, T., Takahashi, T. N., Tamura, H., Tanaka, M., Tanida, K., Tsamalaidze, Z., Ukai, M., Umetsu, H., Wada, S., Yamamoto, T. O., Yoshida, J., and Yoshimura, K.

Subjects
Nuclear Theory (nucl-th), FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

The differential cross sections of the ��-p --> �� n reaction were measured accurately for the ��- momentum (p_{��}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Facility. Precise angular information about the ��-p --> �� n reaction was obtained for the first time by detecting approximately 100 reaction events at each angular step of ��cos�� = 0.1. The obtained differential cross sections show slightly forward-peaking structure in the measured momentum regions.The cross sections integrated for -0.7 < cos�� < 1.0 were obtained as 22.5 +- 0.68 (stat.) +- 0.65 (syst.) mb and 15.8 +-0.83(stat.) +- 0.52 (syst.) mb for 470, arXiv admin note: text overlap with arXiv:2104.13608

Published
2021
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22. J-PARC E07: Systematic Study of Double Strangeness System with Hybrid Emulsion Method

Author

Yoshida, J., primary, Agari, K., additional, Ahn, J. K., additional, Akaishi, T., additional, Akazawa, Y., additional, Ashikaga, S., additional, Bassalleck, B., additional, Bleser, S., additional, Ekawa, H., additional, Endo, Y., additional, Fujikawa, Y., additional, Fujioka, N., additional, Fujita, M., additional, Goto, R., additional, Han, Y., additional, Hasegawa, S., additional, Hashimoto, T., additional, Hayakawa, S. H., additional, Hayakawa, T., additional, Hayata, E., additional, Hicks, K., additional, Hirose, E., additional, Hirose, M., additional, Honda, R., additional, Hoshino, K., additional, Hoshino, S., additional, Hosomi, K., additional, Hwang, S. H., additional, Ichikawa, Y., additional, Ichikawa, M., additional, Ieiri, M., additional, Imai, K., additional, Inaba, K., additional, Ishikawa, Y., additional, Iskendir, A., additional, Ito, H., additional, Ito, K., additional, Jung, W. S., additional, Kanatsuki, S., additional, Kanauchi, H., additional, Kasagi, A., additional, Kawai, T., additional, Kim, M. H., additional, Kim, S. H., additional, Kinbara, S., additional, Kiuchi, R., additional, Kobayashi, H., additional, Kobayashi, K., additional, Koike, T., additional, Koshikawa, A., additional, Lee, J. Y., additional, Lee, J. W., additional, Ma, T. L., additional, Matsumoto, S. Y., additional, Minakawa, M., additional, Miwa, K., additional, Moe, A. T., additional, Moon, T. J., additional, Moritsu, M., additional, Nagase, Y., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakashima, D., additional, Nakazawa, K., additional, Nanamura, T., additional, Naruki, M., additional, Nyaw, A. N. L., additional, Ogura, Y., additional, Ohashi, M., additional, Oue, K., additional, Ozawa, S., additional, Pochodzalla, J., additional, Ryu, S. Y., additional, Sako, H., additional, Sasaki, Y., additional, Sato, S., additional, Sato, Y., additional, Schupp, F., additional, Shirotori, K., additional, Soe, M. M., additional, Soe, M. K., additional, Sohn, J. Y., additional, Sugimura, H., additional, Suzuki, K. N., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, Y., additional, Takeda, T., additional, Tamura, H., additional, Tanida, K., additional, Theint, A. M. M., additional, Tint, K. T., additional, Toyama, Y., additional, Ukai, M., additional, Umezaki, E., additional, Watabe, T., additional, Watanabe, K., additional, Yamamoto, T. O., additional, Yang, S. B., additional, Yoon, C. S., additional, Yoshimoto, M., additional, Zhang, D. H., additional, and Zhang, Z., additional

Published
2021
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23. Establishment of a Modern Experimental Technique of a \(\Sigma p\) Scattering Experiment at J-PARC

Author

Akazawa, Yuya, primary, Ahn, J. K., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Chiga, N., additional, Choi, S. W., additional, Ekawa, H., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Gogami, T., additional, Harada, T., additional, Hasegawa, S., additional, Hayakawa, S., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ieiri, M., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kajikawa, S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Koike, T., additional, Matsuda, K., additional, Matsumoto, Y., additional, Miwa, K., additional, Nagao, S., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Rogers, T., additional, Sakaguchi, A., additional, Sakao, T., additional, Sako, H., additional, Sato, S., additional, Shiozaki, T., additional, Shirotori, K., additional, Suzuki, K. N., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. d. L., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, T. N., additional, Tamura, H., additional, Tanaka, M., additional, Tanida, K., additional, Tsamalaidze, Z., additional, Umetsu, H., additional, Ukai, M., additional, Yamamoto, T. O., additional, Yoshida, J., additional, and Yoshimura, K., additional

Published
2021
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24. Study of \(\Lambda \) Identification Method by the \(\pi ^{ - }p \to K^{0}\Lambda \) Reaction for a \(\Lambda p\) Scattering Experiment at J-PARC

Author

Sakao, T., primary, Ahn, J. K., additional, Akazawa, Y., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Choi, S. W., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Gogami, T., additional, Harada, T., additional, Hasegawa, S., additional, Hayakawa, S. H., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kajikawa, S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Matsuda, K., additional, Matsumoto, Y., additional, Miwa, K., additional, Nagao, S., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Rogers, T., additional, Sakaguchi, A., additional, Sako, H., additional, Sato, S., additional, Shirotori, K., additional, Suzuki, K. N., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. d. L., additional, Takahashi, H., additional, Takahashi, T. N., additional, Takahashi, T., additional, Tanaka, M., additional, Tanida, K., additional, Tamura, H., additional, Tsamalaidze, Z., additional, Ukai, M., additional, Umetsu, H., additional, Yamamoto, T. O., additional, Yoshida, J., additional, and Yoshimura, K., additional

Published
2021
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25. Study of ∑N interaction from the ∑p scattering experiment at J-PARC

Author

Miwa, K., primary, Ahn, J.K., additional, Akazawa, Y., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Chiga, N., additional, Choi, S. W., additional, Ekawa, H., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Gogami, T., additional, Harada, T., additional, Hasegawa, S., additional, Hayakawa, S.H., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ieiri, M., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kajikawa, S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Koike, T., additional, Matsuda, K., additional, Matsumoto, Y., additional, Nagao, S., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Rogers, T., additional, Sakaguchi, A., additional, Sakao, T., additional, Sako, H., additional, Sato, S., additional, Shiozaki, T., additional, Shirotori, K., additional, Suzuki, K. N., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. d. L., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, T. N., additional, Tamura, H., additional, Tanaka, M., additional, Tanida, K., additional, Tsamalaidze, Z., additional, Ukai, M., additional, Umetsu, H., additional, Yamamoto, T. O., additional, Yoshida, J., additional, and Yoshimura, K., additional

Published
2020
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28. Operation of Multi-MPPC System for Cylindrical Scintillation Fiber Tracker

Author

Akazawa, Yuya, primary, Ahn, J. K., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Chiga, N., additional, Choi, S. W., additional, Ekawa, H., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Hasegawa, S., additional, Hayakawa, S., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ieiri, M., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Koike, T., additional, Matsuda, K., additional, Matsumoto, Y., additional, Miwa, K., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Sakaguchi, A., additional, Sako, H., additional, Sato, S., additional, Shiozaki, T., additional, Shirotori, K., additional, Suzuki, K., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. d. L., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, T. N., additional, Tamura, H., additional, Tsamalaidze, Z., additional, Umetsu, H., additional, Ukai, M., additional, Yamamoto, T. O., additional, and Yoshimura, K., additional

Published
2019
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29. Status of the J-PARC E07, Systematic Study of Double Strangeness Nuclei with the Hybrid Emulsion Method

Author

Yoshida, J., primary, Agari, K., additional, Ahn, J. K., additional, Akaishi, T., additional, Akazawa, Y., additional, Ashikaga, S., additional, Bassalleck, B., additional, Bleser, S., additional, Ekawa, H., additional, Endo, Y., additional, Fujikawa, Y., additional, Fujioka, N., additional, Fujita, M., additional, Goto, R., additional, Han, Y., additional, Hasegawa, S., additional, Hashimoto, T., additional, Hayakawa, S. H., additional, Hayakawa, T., additional, Hayata, E., additional, Hicks, K., additional, Hirose, E., additional, Hirose, M., additional, Honda, R., additional, Hoshino, K., additional, Hoshino, S., additional, Hosomi, K., additional, Hwang, S. H., additional, Ichikawa, Y., additional, Ichikawa, M., additional, Ieiri, M., additional, Imai, K., additional, Inaba, K., additional, Ishikawa, Y., additional, Iskendir, A., additional, Ito, H., additional, Ito, K., additional, Jung, W. S., additional, Kanatsuki, S., additional, Kanauchi, H., additional, Kasagi, A., additional, Kawai, T., additional, Kim, M. H., additional, Kim, S. H., additional, Kinbara, S., additional, Kiuchi, R., additional, Kobayashi, H., additional, Kobayashi, K., additional, Koike, T., additional, Koshikawa, A., additional, Lee, J. Y., additional, Lee, J. W., additional, Ma, T. L., additional, Matsumoto, S. Y., additional, Minakawa, M., additional, Miwa, K., additional, Moe, A. T., additional, Moon, T. J., additional, Moritsu, M., additional, Nagase, Y., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakashima, D., additional, Nakazawa, K., additional, Nanamura, T., additional, Naruki, M., additional, Nyaw, A. N. L., additional, Ogura, Y., additional, Ohashi, M., additional, Oue, K., additional, Ozawa, S., additional, Pochodzalla, J., additional, Ryu, S. Y., additional, Sako, H., additional, Sasaki, Y., additional, Sato, S., additional, Sato, Y., additional, Schupp, F., additional, Shirotori, K., additional, Soe, M. M., additional, Soe, M. K., additional, Sohn, J. Y., additional, Sugimura, H., additional, Suzuki, K. N., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, Y., additional, Takeda, T., additional, Tamura, H., additional, Tanida, K., additional, Theint, A. M. M., additional, Tint, K. T., additional, Toyama, Y., additional, Ukai, M., additional, Umezaki, E., additional, Watabe, T., additional, Watanabe, K., additional, Yamamoto, T. O., additional, Yang, S. B., additional, Yoon, C. S., additional, Yoshimoto, M., additional, Zhang, D. H., additional, and Zhang, Z., additional

Published
2019
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30. Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

Author

Ekawa, H, primary, Agari, K, additional, Ahn, J K, additional, Akaishi, T, additional, Akazawa, Y, additional, Ashikaga, S, additional, Bassalleck, B, additional, Bleser, S, additional, Endo, Y, additional, Fujikawa, Y, additional, Fujioka, N, additional, Fujita, M, additional, Goto, R, additional, Han, Y, additional, Hasegawa, S, additional, Hashimoto, T, additional, Hayakawa, S H, additional, Hayakawa, T, additional, Hayata, E, additional, Hicks, K, additional, Hirose, E, additional, Hirose, M, additional, Honda, R, additional, Hoshino, K, additional, Hoshino, S, additional, Hosomi, K, additional, Hwang, S H, additional, Ichikawa, Y, additional, Ichikawa, M, additional, Ieiri, M, additional, Imai, K, additional, Inaba, K, additional, Ishikawa, Y, additional, Iskendir, A, additional, Ito, H, additional, Ito, K, additional, Jung, W S, additional, Kanatsuki, S, additional, Kanauchi, H, additional, Kasagi, A, additional, Kawai, T, additional, Kim, M H, additional, Kim, S H, additional, Kinbara, S, additional, Kiuchi, R, additional, Kobayashi, H, additional, Kobayashi, K, additional, Koike, T, additional, Koshikawa, A, additional, Lee, J Y, additional, Lee, J W, additional, Ma, T L, additional, Matsumoto, S Y, additional, Minakawa, M, additional, Miwa, K, additional, Moe, A T, additional, Moon, T J, additional, Moritsu, M, additional, Nagase, Y, additional, Nakada, Y, additional, Nakagawa, M, additional, Nakashima, D, additional, Nakazawa, K, additional, Nanamura, T, additional, Naruki, M, additional, Nyaw, A N L, additional, Ogura, Y, additional, Ohashi, M, additional, Oue, K, additional, Ozawa, S, additional, Pochodzalla, J, additional, Ryu, S Y, additional, Sako, H, additional, Sasaki, Y, additional, Sato, S, additional, Sato, Y, additional, Schupp, F, additional, Shirotori, K, additional, Soe, M M, additional, Soe, M K, additional, Sohn, J Y, additional, Sugimura, H, additional, Suzuki, K N, additional, Takahashi, H, additional, Takahashi, T, additional, Takahashi, Y, additional, Takeda, T, additional, Tamura, H, additional, Tanida, K, additional, Theint, A M M, additional, Tint, K T, additional, Toyama, Y, additional, Ukai, M, additional, Umezaki, E, additional, Watabe, T, additional, Watanabe, K, additional, Yamamoto, T O, additional, Yang, S B, additional, Yoon, C S, additional, Yoshida, J, additional, Yoshimoto, M, additional, Zhang, D H, additional, and Zhang, Z, additional

Published
2019
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31. Σp scattering experiment at J-PARC – results of commissioning run –

Author

Miwa, K., primary, Ahn, J. K., additional, Akazawa, Y., additional, Aramaki, T., additional, Ashikaga, S., additional, Callier, S., additional, Chiga, N., additional, Choi, S. W., additional, Ekawa, H., additional, Evtoukhovitch, P., additional, Fujioka, N., additional, Fujita, M., additional, Hasegawa, S., additional, Hayakawa, S., additional, Honda, R., additional, Hoshino, S., additional, Hosomi, K., additional, Ichikawa, M., additional, Ichikawa, Y., additional, Ieiri, M., additional, Ikeda, M., additional, Imai, K., additional, Ishikawa, Y., additional, Ishimoto, S., additional, Jung, W. S., additional, Kanauchi, H., additional, Kanda, H., additional, Kang, B. M., additional, Kawai, H., additional, Kim, S. H., additional, Kobayashi, K., additional, Koike, T., additional, Matsuda, K., additional, Matsumoto, Y., additional, Nagatomi, R., additional, Nakada, Y., additional, Nakagawa, M., additional, Nakamura, I., additional, Nanamura, T., additional, Naruki, M., additional, Ozawa, S., additional, Raux, L., additional, Sakaguchi, A., additional, Sako, H., additional, Sato, S., additional, Shiozaki, T., additional, Shirotori, K., additional, Suzuki, K., additional, Suzuki, S., additional, Tabata, M., additional, Taille, C. D. L., additional, Takahashi, H., additional, Takahashi, T., additional, Takahashi, T. N., additional, Tamura, H., additional, Tsamalaidze, Z., additional, Umetsu, H., additional, Ukai, M., additional, Yamamoto, T. O., additional, and Yoshimura, K., additional

Published
2019
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49. Structure of the intracellular defective viral RNAs of defective interfering particles of mouse hepatitis virus

Author

Makino, S, Fujioka, N, and Fujiwara, K

Abstract

The intracellular defective RNAs generated during high-multiplicity serial passages of mouse hepatitis virus JHM strain on DBT cells were examined. Seven novel species of single-stranded polyadenylic acid-containing defective RNAs were identified from passages 3 through 22. The largest of these RNAs, DIssA (molecular weight [mw], 5.2 X 10(6)), is identical to the genomic RNA packaged in the defective interfering particles produced from these cells. Other RNA species, DIssB1 (mw, 1.9 X 10(6) to 1.6 X 10(6)), DIssB2 (mw, 1.6 X 10(6)), DIssC (mw, 2.8 X 10(6)) DIssD (mw, 0.82 X 10(6)), DIssE (mw, 0.78 X 10(6)), and DIssF (mw, 1.3 X 10(6)) were detected at different passage levels. RNase T1-resistant oligonucleotide fingerprinting demonstrated that all these RNAs were related and had multiple deletions of the genomic sequences. They contained different subsets of the genomic sequences from those of the standard intracellular mRNAs of nondefective mouse hepatitis virus JHM strain. Thus these novel intracellular viral RNAs were identified as defective interfering RNAs of mouse hepatitis virus JHM strain. The synthesis of six of the seven normal mRNA species specific to mouse hepatitis virus JHM strain was completely inhibited when cells were infected with viruses of late-passage levels. However, the synthesis of RNA7 and its product, viral nucleoprotein, was not significantly altered in late passages. The possible mechanism for the generation of defective interfering RNAs was discussed.

Published
1985
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