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1. Measurement of 3He analyzing power for p-3He scattering using the polarized 3He target

Author

A. Watanabe, S. Nakai, K. Sekiguchi, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, Y. Shiokawa, T. Taguchi, H. Umetsu, Y. Utsuki, Y. Wada, M. Watanabe, M. Itoh, T. Ino, T. Wakui, K. Hatanaka, H. Kanda, H. J. Ong, D. T. Tran, S. Goto, Y. Hirai, D. Inomoto, H. Kasahara, S. Mitsumoto, H. Oshiro, T. Wakasa, Y. Maeda, K. Nonaka, H. Sakai, T. Uesaka

Subjects
Physics, QC1-999
Abstract

Proton–3He scattering is one of the good probes to study the T = 3/2 channel of three– nucleon forces. We have measured 3He analyzing powers for p−3He elastic scattering with the polarized 3He target at 70 and 100 MeV. In the conference the data were com- pared with the theoretical predictions based on the modern nucleon–nucleon potentials. Large discrepancies were found between the data and the calculations at the angles where the 3He analyzing power takes the minimum and maximum values.

Published
2020
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2. Analyzing Power Measurement for p-$$^3$$He Elastic Scattering at Intermediate Energies

Author

A. Watanabe, S. Nakai, Y. Wada, K. Sekiguchi, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, Y. Shiokawa, T. Taguchi, H. Umetsu, Y. Utsuki, M. Watanabe, S. Goto, K. Hatanaka, Y. Hirai, Y. Ikeda, T. Ino, D. Inomoto, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, Y. Maeda, S. Mitsumoto, K. Nonaka, H. J. Ong, H. Oshiro, Y. Otake, H. Sakai, A. Taketani, D. T. Tran, T. Uesaka, T. Wakasa, Y. Wakabayashi, and T. Wakui

Subjects
Atomic and Molecular Physics, and Optics
Published
2021

3. Proton-$\rm ^3He$ elastic scattering at intermediate energies

Author

Y. Inoue, Kimiko Sekiguchi, Shinichi Ishikawa, Kotaro Nonaka, T. Ino, Makoto Watanabe, D. T. Tran, H. Kanda, T. Mukai, S. Nakai, S. Goto, K. Kawahara, Daiki Inomoto, Atsushi Taketani, Y. Hirai, Kenjiro Miki, A. Deltuva, H. Oshiro, H. Kon, Nobuyuki Kobayashi, Hooi Jin Ong, S. Shibuya, M. Itoh, Atsushi Tamii, Y. Otake, Yukie Maeda, D. Sakai, H. Umetsu, Yuta Utsuki, Tomotsugu Wakasa, T. Taguchi, S. Mitsumoto, Y. Shiokawa, Yasuo Wakabayashi, S. N. Nakamura, Minami Inoue, D. Etoh, Hideyuki Sakai, Hina Kasahara, Kichiji Hatanaka, T. Akieda, T. Wakui, Y. Wada, A. Inoue, and A. Watanabe

Subjects
Physics, Elastic scattering, Nuclear Theory, Proton, 010308 nuclear & particles physics, Scattering, Binding energy, FOS: Physical sciences, 01 natural sciences, Nuclear physics, Nuclear Theory (nucl-th), Cross section (physics), 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Scaling, Excitation, Spin-½
Abstract

We present a precise measurement of the cross section, proton and $\rm ^3He$ analyzing powers, and spin correlation coefficient $C_{y,y}$ for $p$-$\rm ^3He$ elastic scattering near 65 MeV, and a comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with $\Delta$-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and the $\rm ^3 He$ binding energy are not successful in reproducing the data. Large sensitivity to the $NN$ potentials and rather small $\Delta$-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate that $p$-$\rm ^3He$ scattering at intermediate energies is an excellent tool to explore nuclear interactions not accessible by three-nucleon scattering., Comment: 22 pages, 6 figures

Published
2021
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4. Compelete Set of Deuteron Analyzing Powers for dp Elastic Scattering at 70–300 MeV/nucleon and Three-Nucleon Forces

Author

S. Kawakami, Y. Shimizu, Kimiko Sekiguchi, Masanori Dozono, E. Milman, H. Okamura, Yukie Maeda, A. Watanabe, Hideyuki Sakai, Kenjiro Miki, Masaki Sasano, H. Kon, Yuya Kubota, T. Akieda, Kentaro Yako, Tatsuya Yamamoto, Tomotsugu Wakasa, N. Sakamoto, Y. Shindo, T. L. Tang, Hiroshi Suzuki, D. Eto, Satoshi Sakaguchi, M. Tabata, Y. Yanagisawa, Shoichiro Kawase, A. Ohkura, J. Yasuda, Tomohiro Uesaka, S. Chebotaryov, and Y. Wada

Subjects
Nuclear physics, Physics, Set (abstract data type), Elastic scattering, Deuterium, Nucleon
Published
2020

5. Measurement for p–$$^3$$He Elastic Scattering with a 65 MeV Polarized Proton Beam

Author

H. Kon, T. Taguchi, S. N. Nakamura, Kimiko Sekiguchi, S. Goto, A. Inoue, Nobuyuki Kobayashi, S. Shibuya, Hooi Jin Ong, H. Ohshiro, T. Ino, Kichiji Hatanaka, S. Nakai, Tomohiro Uesaka, Makoto Watanabe, T. Mukai, K. Kawahara, Tomotsugu Wakasa, T. Akieda, T. Wakui, Y. Wada, Yukie Maeda, S. Mitsumoto, Y. Shiokawa, Kenjiro Miki, A. Watanabe, Hideyuki Sakai, D. Eto, Atsushi Tamii, D. Sakai, and M. Ito

Subjects
Nuclear physics, Elastic scattering, Physics, Cross section (physics), Proton, Nuclear Theory, Physics::Accelerator Physics, Nuclear Experiment, Beam (structure)
Abstract

We performed the measurement of the cross section and the proton analyzing power \(A_y\) for p–\(^3\)He elastic scattering with a 65 MeV polarized proton beam at Research Center for Nuclear Physics (RCNP), Osaka University. The proton analyzing power \(A_y\) data are compared with the theoretical calculations based on the nucleon–nucleon potential (INOY04).

Published
2020

6. Measurement of $$^3$$He Analyzing Power for $$p{-}^{3}$$He Elastic Scattering at $$70~\mathrm{MeV}$$

Author

T. Mukai, D. Sakai, D. Etoh, M. Itoh, T. Ino, T. Taguchi, T. Wakui, Y. Wada, Y. Inoue, S. Shibuya, S. Nakai, A. Watanabe, Kenjiro Miki, Y. Shiokawa, H. Kon, T. Akieda, K. Kawahara, Makoto Watanabe, and Kimiko Sekiguchi

Subjects
Elastic scattering, Physics, law, Atomic physics, Polarization (waves), Electron paramagnetic resonance, law.invention
Abstract

The \(^3\)He analyzing powers for \(p{-}^3\)He elastic scattering with the polarized \(^3\)He target have been measured at \(70~\mathrm {MeV}\). \(^3\)He polarization which was calibrated by the electron paramagnetic resonance method was achieved to \(50\%\). In the conference the data were compared with the theoretical calculations based on the modern nucleon–nucleon potentials. Large discrepancies between the theoretical calculations and the experimental data were found at the angles where the \(^3\)He analyzing power takes minimum and maximum.

Published
2020

7. Experimental Approach to Three-nucleon Forces via Three- and Four-nucleon Scattering

Author

T. Mukai, S. Kawakami, M. Tabata, Y. Shindo, S. Shibuya, Makoto Watanabe, Masanori Dozono, Y. Yanagisawa, Satoshi Sakaguchi, A. Watanabe, Hideyuki Sakai, Y. Wada, Kentaro Yako, Y. Shiokawa, Kenjiro Miki, Tomotsugu Wakasa, S. Chebotaryov, J. Yasuda, Tomohiro Uesaka, N. Sakamoto, T. Akieda, Yukie Maeda, D. Sakai, D. Eto, S. Nakai, E. Milman, Takashi Wakui, Kimiko Sekiguchi, A. Ohkura, Masaki Sasano, H. Kon, Hiroshi Suzuki, K. Kawahara, T. Taguchi, Yuya Kubota, Masatoshi Itoh, and Tatsuya Yamamoto

Subjects
Physics, Nuclear physics, 010308 nuclear & particles physics, Scattering, 0103 physical sciences, 010306 general physics, Nucleon, 01 natural sciences
Published
2018

8. Proton-3He Elastic Scattering at Intermediate Energies

Author

A., Watanabe (Tohoku Univ.), S., Nakai (Tohoku Univ.), Y., Wada (Tohoku Univ.), K., Sekiguchi (Tohoku Univ.), A., Deltuva (Inst. Theoretical Physics and Astronomy), T., Akieda (Tohoku Univ.), D., Etoh (Tohoku Univ.), M., Inoue (Tohoku Univ.), K., Kawahara (Tohoku Univ.), H., Kon (Tohoku Univ.), K., Miki (Tohoku Univ.), T., Mukai (Tohoku Univ.), D., Sakai (Tohoku Univ.), S., Shibuya (Tohoku Univ.), Y., Shiokawa (Tohoku Univ.), T., Taguchi (Tohoku Univ.), H., Umetsu (Tohoku Univ.), Y., Utsuki (Tohoku Univ.), M., Watanabe (Tohoku Univ.), S., Goto (Kyushu Univ.), K., Hatanaka (Osaka Univ., RCNP), Y., Hirai (Kyushu Univ.), T., Ino (KEK), D., Inomoto (Kyushu Univ.), A., Inoue (Osaka Univ., RCNP), S., Ishikawa (Hosei Univ.), M., Itoh (Tohoku Univ., CYRIC), H., Kanda (Osaka Univ., RCNP), H., Kasahara (Kyushu Univ.), N., Kobayashi (Osaka Univ., RCNP), Y., Maeda (Univ. Miyazaki), S., Mitsumoto (Kyushu Univ.), S., Nakamura (Osaka Univ., RCNP), K., Nonaka (Univ. Miyazaki), H., J. Ong (Osaka Univ., RCNP), H., Oshiro (Kyushu Univ.), Y., Otake (RIKEN), H., Sakai (RIKEN), A., Taketani (RIKEN), A., Tamii (Osaka Univ., RCNP), D., T. Tran (Osaka Univ., RCNP), T., Wakasa (Kyushu Univ.), Y., Wakabayashi (RIKEN), Wakui , T., Inoue, Y., and Takashi, Wakui

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

We present a precise measurement of the cross section, proton and 3He analyzing powers, and spin correlation coefficient Cy,y for the p-3He elastic scattering near 65 MeV, and comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with Δ-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and the 3He binding energy are not successful in reproducing the data. Large sensitivity to the NN potentials and rather small Δ-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate that p-3He scattering at intermediate energies is an excellent tool to explore the nuclear interactions not accessible by the three-nucleon scattering.

Published
2021

9. Proton elastic scattering at 200 A MeV and high momentum transfers of 1.7–2.7 fm−1 as a probe of the nuclear matter density of 6He

Author

Yohei Shimizu, Zh Yang, Masaki Sasano, K. Yoneda, Y. Ando, T. Akieda, S. Nakai, Masanori Dozono, T. Tomai, A. Galindo-Uribarri, I. Stefan, Atsumi Saito, H. Sato, M. Yasuda, Kaori Kaki, Kenjiro Miki, A. Ni, Yuya Kubota, Yosuke Kondo, S. Leblond, Didier Beaumel, Kimiko Sekiguchi, N. Chiga, Juzo Zenihiro, A. Watanabe, Tetsuo Noro, Takashi Kobayashi, Satoshi Sakaguchi, L. Stuhl, Shoichiro Kawase, Yohei Matsuda, S. Park, Satoru Terashima, Shuichi Ota, W. Kim, T. Lokotko, V. Panin, T. Mukai, T. Wakui, B. Heffron, Kenichiro Tateishi, Tomotsugu Wakasa, Motonobu Takaki, T. Ozaki, H. Sakai, Yukie Maeda, Tomohiro Uesaka, H. Kon, Yoshiki Wada, Hideaki Otsu, T. Motobayashi, J. Yasuda, E. Milman, S. Chebotaryov, K. Taniue, A. Hirayama, H. Lee, Takashi Nakamura, Tadaaki Isobe, H. Yamada, Yasuhiro Togano, M. Assie, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Elastic scattering, Physics, Inverse kinematics, 010308 nuclear & particles physics, D27 Reactions induced by unstable nuclei, General Physics and Astronomy, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Impulse (physics), Nuclear matter, 7. Clean energy, 01 natural sciences, Computational physics, medicine.anatomical_structure, 0103 physical sciences, medicine, D11 Models of nuclear structure, Neutron, Halo, Nuclear Experiment, 010306 general physics, Nucleus, Order of magnitude
Abstract

International audience; Differential cross sections of p–6He elastic scattering were measured in inverse kinematics at an incident energy of 200 A MeV, covering the high momentum transfer region of 1.7–2.7 fm−1. The sensitivity of the elastic scattering at low and high momentum transfers to the density distribution was investigated quantitatively using relativistic impulse approximation calculations. In the high momentum transfer region, where the present data were taken, the differential cross section has an order of magnitude higher sensitivity to the inner part of the 6He density relative to the peripheral part (15:1). This feature makes the obtained data valuable for the deduction of the inner part of the 6He density. The data were compared to a set of calculations assuming different proton and neutron density profiles of 6He. The data are well reproduced by the calculation assuming almost the same profiles of proton and neutron densities around the center of 6He, and a proton profile reproducing the known point-proton radius of 1.94 fm. This finding is consistent with the assumption that the 6He nucleus consists of a rigid α-like core with a two-neutron halo.

Published
2018

10. Complete set of deuteron analyzing powers from d⃗p elastic scattering at 190 MeV/nucleon

Author

Masaki Sasano, H. Kon, D. Eto, Kimiko Sekiguchi, Hiroshi Suzuki, T. Akieda, M. Tabata, Tomotsugu Wakasa, Y. Wada, A. Watanabe, Henryk Witała, R. Skibiński, Kentaro Yako, Hideyuki Sakai, S. Kawakami, Kenjiro Miki, Satoshi Sakaguchi, Tomohiro Uesaka, Yuya Kubota, Tatsuya Yamamoto, Naoya Sakamoto, Masanori Dozono, Y. Yanagisawa, Yukie Maeda, J. Yasuda, A. Ohkura, S. Chebotaryov, Hiroyuki Kamada, Y. Shindo, E. Milman, and Jacek Golak

Subjects
Nuclear physics, Elastic scattering, Physics, Set (abstract data type), Deuterium, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, Nucleon, 01 natural sciences
Published
2017

11. Deuteron Analyzing Powers for $$\varvec{dp}$$ d p Elastic Scattering at Intermediate Energies and Three-Nucleon Forces

Author

T. Akieda, Kimiko Sekiguchi, Y. Shindo, Yuya Kubota, S. Chebotaryov, Y. Shimizu, A. Watanabe, Tatsuya Yamamoto, Naoya Sakamoto, Tomohiro Uesaka, Kentaro Yako, Hideyuki Sakai, C. S. Lee, Satoshi Sakaguchi, Masanori Dozono, A. Ohkura, Y. Wada, Yukie Maeda, E. Milman, M. Tabata, Tomotsugu Wakasa, T. L. Tang, Kenjiro Miki, Masaki Sasano, H. Kon, H. Okamura, Y. Yanagisawa, Hiroshi Suzuki, D. Eto, Shoichiro Kawase, J. Yasuda, and S. Kawakami

Subjects
Elastic scattering, Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear physics, Deuterium, 0103 physical sciences, Effective field theory, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

We have measured a complete set of deuteron analyzing powers in deuteron–proton elastic scattering at 190, 250, and 294 MeV/nucleon. The obtained data are compared with the Faddeev calculations based on the modern nucleon–nucleon forces together with the Tucson-Melbourne’99, and UrbanaIX three nucleon forces. The data are also presented with the calculations based on the N4LO NN potentials of the chiral effective field theory.

Published
2017

13. Sulfhydryl group (total SH) and glutathione contents in digestive organs

Author

Y. Sugai, T. Akieda, G. Nishimura, M. Sasaki, and T. Ando

Subjects
medicine.medical_specialty, business.industry, Gastroenterology, Glutathione, Hepatology, Colorectal surgery, chemistry.chemical_compound, chemistry, Surgical oncology, Internal medicine, Medicine, business, Abdominal surgery
Published
1968

14. Palatal microbiota associated with membranous substances in older Japanese individuals undergoing tube feeding in long-term care: A cross-sectional study.

Author

Asahina H, Ogasawara T, Akieda T, Miyahara K, Okada Y, Matsumura K, Taniguchi M, Yoshida A, and Kakinoki Y

Abstract

Objective: Tube feeders are prone to membranous substance formation on the palate, and those with membranous substances have a risk of fever, with the probable involvement of their oral bacteria. However, the palatal microbiota of those with membranous substances has not been elucidated. Therefore, we evaluated the differences in palatal microbiota between tube-fed individuals with and without membranous substances to clarify the microbiota., Materials and Methods: This study included 19 participants aged 65 years who required tube feeding. The participants' characteristics were collected from nursing records and oral examinations. If membranous materials were found on the palate, a specimen was collected. Membranous substances were defined as keratotic degeneration observed under a microscope. Additionally, we performed a comprehensive microbiome analysis by extracting DNA from the samples and performing 16 S rRNA gene sequencing. Finally, we compared the participant demographics and oral microbiota between patients with and without membranous substances., Results: A total of 11 participants had membranous substances associated with "mouth dryness" (p < 0.001) and "constant mouth opening" (p = 0.020). Palatal microbiota differed between those with and without membranous substances. Among the bacteria with a relative abundance greater than 1.0%, the abundance of Streptococcus (p = 0.007), Fusobacterium (p = 0.041), Streptococcus agalactiae (p = 0.009), and Fusobacterium nucleatum subsp. vincentii (p = 0.026) was significantly higher in the membranous substance group than in the non-membranous substance group., Conclusions: The palatal microbiota of individuals undergoing tube feeding differed depending on the presence or absence of membranous substances. Membrane substance formation associated with dry mouth purportedly alters the palatal microbiota. Streptococcus , Fusobacterium , S . agalactiae , and F . nucleatum subsp. vincentii were more abundant in the oral microbiota of patients with membranous substances. Thus, preventing this formation may help in controlling the growth of these microbes., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)

Published
2023
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