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Journal Articles

Low spin spectroscopy of neutron-rich $$^{43,44,45}$$Cl via $$beta^-$$ and $$beta n$$ decay

Tripathi, V.*; Bhattacharya, S.*; Rubino, E.*; Benetti, C.*; Perello, J. F.*; Tabor, S. L.*; Liddick, S. N.*; Bender, P. C.*; Carpenter, M. P.*; Carroll, J. J.*; et al.

Physical Review C, 109(4), p.044320_1 - 044320_15, 2024/04

 Times Cited Count:0 Percentile:0.00(Physics, Nuclear)

no abstracts in English

Journal Articles

First observation of $$^{28}$$O

Kondo, Yosuke*; Achouri, N. L.*; Al Falou, H.*; Atar, L.*; Aumann, T.*; Baba, Hidetada*; Boretzky, K.*; Caesar, C.*; Calvet, D.*; Chae, H.*; et al.

Nature, 620(7976), p.965 - 970, 2023/08

 Times Cited Count:27 Percentile:94.86(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

$$beta^-$$ decay of exotic P and S isotopes with neutron number near 28

Tripathi, V.*; Bhattacharya, S.*; Rubino, E.*; Benetti, C.*; Perello, J. F.*; Tabor, S. L.*; Liddick, S. N.*; Bender, P. C.*; Carpenter, M. P.*; Carroll, J. J.*; et al.

Physical Review C, 106(6), p.064314_1 - 064314_14, 2022/12

 Times Cited Count:4 Percentile:53.47(Physics, Nuclear)

no abstracts in English

Journal Articles

Experimental study of liquid spreading and atomization due to jet impingement in liquid-liquid systems

Yamamura, Sota*; Fujiwara, Kota*; Honda, Kota*; Yoshida, Hiroyuki; Horiguchi, Naoki; Kaneko, Akiko*; Abe, Yutaka*

Physics of Fluids, 34(8), p.082110_1 - 082110_13, 2022/08

 Times Cited Count:3 Percentile:30.82(Mechanics)

Liquid spreading and atomization due to jet impingement in liquid-liquid systems are considered to be crucial for understanding the cooling behavior of high-temperature molten material in a shallow water pool. This phenomenon takes place when a liquid jet enters a pool filled with other immiscible liquid. The jet spreads radially after impinging on the floor while forming a thin liquid film and atomizing droplets. In this paper, we explain the result to quantify the unsteady three-dimensional behavior of the spreading jet by the employment of 3D-LIF measurements and 3-dimensional reconstruction. Under high flow velocity conditions, the phenomena of hydraulic jump and atomization of the liquid film occurred along with the spreading. To evaluate the spreading behavior, a comparison of the jump radius position of the liquid-liquid system as the representative value was made with the one calculated by the existing theory of a gas-liquid system. As the result, the spreading of the liquid film in the liquid-liquid system was suppressed compared with that in the gas-liquid system. Furthermore, the PTV method was successfully used to measure the velocity boundary layer and velocity profile in the liquid film, which are important factors that affect the spreading mechanism of the liquid film. These results revealed that in liquid-liquid systems, shear stress at the liquid-liquid interface causes a decrease in the flow velocity and suppressed the development of the velocity boundary layer. Also, to evaluate the atomization behavior, the number and diameter distribution of the droplets were measured from the acquired 3-dimensional shape data of the jet. As the result, the number of droplets increased with the flow velocity. Based on these results, we concluded that the spreading of the liquid film is affected by such atomization behavior.

Journal Articles

Time-resolved 3D visualization of liquid jet breakup and impingement behavior in a shallow liquid pool

Kimura, Fumihito*; Yamamura, Sota*; Fujiwara, Kota*; Yoshida, Hiroyuki; Saito, Shimpei*; Kaneko, Akiko*; Abe, Yutaka*

Nuclear Engineering and Design, 389, p.111660_1 - 111660_11, 2022/04

 Times Cited Count:4 Percentile:53.26(Nuclear Science & Technology)

Journal Articles

Single-crystal structure analysis of non-deuterated triglycine sulfate by neutron diffraction at 20 and 298 K; A New disorder model for the 298 K structure

Terasawa, Yukana*; Ohara, Takashi; Sato, Sota*; Yoshida, Satoshi*; Asahi, Toru*

Acta Crystallographica Section E; Crystallographic Communications (Internet), 78(3), p.306 - 312, 2022/03

Journal Articles

Development of dispersed phase tracking method for time-series 3-dimensional interface shape data

Horiguchi, Naoki; Yoshida, Hiroyuki; Yamamura, Sota*; Fujiwara, Kota*; Kaneko, Akiko*; Abe, Yutaka*

Proceedings of 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-19) (Internet), 14 Pages, 2022/03

Journal Articles

The Impact of nuclear shape on the emergence of the neutron dripline

Tsunoda, Naofumi*; Otsuka, Takaharu; Takayanagi, Kazuo*; Shimizu, Noritaka*; Suzuki, Toshio*; Utsuno, Yutaka; Yoshida, Sota*; Ueno, Hideki*

Nature, 587, p.66 - 71, 2020/11

 Times Cited Count:67 Percentile:94.62(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Numerical simulation of liquid jet behavior in shallow pool by interface tracking method

Suzuki, Takayuki*; Yoshida, Hiroyuki; Horiguchi, Naoki; Yamamura, Sota*; Abe, Yutaka*

Proceedings of 2020 International Conference on Nuclear Engineering (ICONE 2020) (Internet), 7 Pages, 2020/08

Journal Articles

$$beta^-$$ decay of $$T_z$$ = +$$frac{11}{2}$$ isotopes $$^{37}$$Al and $$^{39}$$Si; Understanding Gamow-Teller strength distribution in neutron-rich nuclei

Abromeit, B.*; Tripathi, V.*; Crawford, H. L.*; Liddick, S. N.*; Yoshida, Sota*; Utsuno, Yutaka; Bender, P. C.*; Crider, B. P.*; Dungan, R.*; Fallon, P.*; et al.

Physical Review C, 100(1), p.014323_1 - 014323_14, 2019/07

AA2019-0227.pdf:1.54MB

 Times Cited Count:2 Percentile:20.17(Physics, Nuclear)

no abstracts in English

Journal Articles

A New approach for measuring the muon anomalous magnetic moment and electric dipole moment

Abe, Mitsushi*; Bae, S.*; Beer, G.*; Bunce, G.*; Choi, H.*; Choi, S.*; Chung, M.*; da Silva, W.*; Eidelman, S.*; Finger, M.*; et al.

Progress of Theoretical and Experimental Physics (Internet), 2019(5), p.053C02_1 - 053C02_22, 2019/05

 Times Cited Count:156 Percentile:99.31(Physics, Multidisciplinary)

This paper introduces a new approach to measure the muon magnetic moment anomaly $$a_{mu}=(g-2)/2$$ and the muon electric dipole moment (EDM) $$d_{mu}$$ at the J-PARC muon facility. The goal of our experiment is to measure $$a_{mu}$$ and $$d_{mu}$$ using an independent method with a factor of 10 lower muon momentum, and a factor of 20 smaller diameter storage-ring solenoid compared with previous and ongoing muon g-2 experiments with unprecedented quality of the storage magnetic field. Additional significant differences from the present experimental method include a factor of 1000 smaller transverse emittance of the muon beam (reaccelerated thermal muon beam), its efficient vertical injection into the solenoid, and tracking each decay positron from muon decay to obtain its momentum vector. The precision goal for $$a_{mu}$$ is a statistical uncertainty of 450 parts per billion (ppb), similar to the present experimental uncertainty, and a systematic uncertainty less than 70 ppb. The goal for EDM is a sensitivity of $$1.5times10^{-21}$$ e$$cdot$$cm.

Journal Articles

New precise measurements of muonium hyperfine structure at J-PARC MUSE

Strasser, P.*; Abe, Mitsushi*; Aoki, Masaharu*; Choi, S.*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; et al.

EPJ Web of Conferences, 198, p.00003_1 - 00003_8, 2019/01

 Times Cited Count:16 Percentile:98.57(Quantum Science & Technology)

Journal Articles

Systematic shell-model study of $$beta$$-decay properties and Gamow-Teller strength distributions in $$A {approx} 40$$ neutron-rich nuclei

Yoshida, Sota*; Utsuno, Yutaka; Shimizu, Noritaka*; Otsuka, Takaharu*

Physical Review C, 97(5), p.054321_1 - 054321_17, 2018/05

 Times Cited Count:46 Percentile:94.44(Physics, Nuclear)

no abstracts in English

Journal Articles

New precise measurement of muonium hyperfine structure interval at J-PARC

Ueno, Yasuhiro*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.

Hyperfine Interactions, 238(1), p.14_1 - 14_6, 2017/11

 Times Cited Count:4 Percentile:87.91(Physics, Atomic, Molecular & Chemical)

Journal Articles

$$beta$$ decay of $$^{38,40}$$Si ($$T_z$$ = +5, +6) to low-lying core excited states in odd-odd $$^{38,40}$$P isotopes

Tripathi, V.*; Lubna, R. S.*; Abromeit, B.*; Crawford, H. L.*; Liddick, S. N.*; Utsuno, Yutaka; Bender, P. C.*; Crider, B. P.*; Dungan, R.*; Fallon, P.*; et al.

Physical Review C, 95(2), p.024308_1 - 024308_7, 2017/02

AA2016-0485.pdf:0.5MB

 Times Cited Count:7 Percentile:47.71(Physics, Nuclear)

no abstracts in English

Journal Articles

New muonium HFS measurements at J-PARC/MUSE

Strasser, P.*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.

Hyperfine Interactions, 237(1), p.124_1 - 124_9, 2016/12

 Times Cited Count:7 Percentile:89.49(Physics, Atomic, Molecular & Chemical)

Oral presentation

Effect of stiffness on vibration of the model of ADS beam window due to impinging jet

Hiratsuka, Sota*; Tobita, Daiki*; Monji, Hideaki*; Yamashita, Susumu; Kondo, Nao; Yoshida, Hiroyuki; Sugawara, Takanori

no journal, , 

In the ADS, a cooling method is being considered in which coolant is sprayed directly from a nozzle installed in front of the beam window because the beam window becomes hot due to the passage of the proton beam emitted by the accelerator. In this method, an impinging jet is formed around the hemispherical beam window, which induces oscillation of the beam window. Therefore, from a safety point of view, it is very important to understand the oscillation characteristics of the beam window caused by the impinging jet. In this presentation, we will discuss the results of a study on the effect of stiffness on the oscillation of a beam window caused by an impinging jet by means of a mock-up experiment.

Oral presentation

Description of strength distribution calculated with large-scale shell-model calculations; $$beta$$ decays and photonuclear reactions

Utsuno, Yutaka; Shimizu, Noritaka*; Yoshida, Sota*; Otsuka, Takaharu*

no journal, , 

no abstracts in English

Oral presentation

Shell-model study of strength function in the $$sd$$-$$pf$$ shell region

Utsuno, Yutaka; Shimizu, Noritaka*; Otsuka, Takaharu*; Homma, Michio*; Yoshida, Sota*; Ebata, Shuichiro*

no journal, , 

no abstracts in English

Oral presentation

Nuclear-structure calculations for half-lives and beta-delayed neutron-emission probabilities in light neutron-rich nuclei

Utsuno, Yutaka; Yoshida, Sota*; Shimizu, Noritaka*; Otsuka, Takaharu*

no journal, , 

no abstracts in English

28 (Records 1-20 displayed on this page)