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Search Results: Records 1-20 displayed on this page of 28

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Journal Articles

High sensitivity of a future search for effects of $$P$$-odd/$$T$$-odd interactions on the 0.75 eV $$p$$-wave resonance in $$overrightarrow{n}$$+$$^{139}overrightarrow{textrm{La}}$$ forward transmission determined using a pulsed neutron beam

Nakabe, Rintaro*; Auton, C. J.*; Endo, Shunsuke; Fujioka, Hiroyuki*; Gudkov, V.*; Hirota, Katsuya*; Ide, Ikuo*; Ino, Takashi*; Ishikado, Motoyuki*; Kambara, Wataru*; et al.

Physical Review C, 109(4), p.L041602_1 - L041602_4, 2024/04

https://doi.org/10.1103/PhysRevC.109.L041602

Journal Articles

Spin dependence in the $$p$$-wave resonance of $$^{139}$$$overrightarrow{textrm{La}}$+$overrightarrow{n}$

Okudaira, Takuya*; Nakabe, Rintaro*; Auton, C. J.*; Endo, Shunsuke; Fujioka, Hiroyuki*; Gudkov, V.*; Ide, Ikuo*; Ino, Takashi*; Ishikado, Motoyuki*; Kambara, Wataru*; et al.

Physical Review C, 109(4), p.044606_1 - 044606_9, 2024/04

https://doi.org/10.1103/PhysRevC.109.044606

Journal Articles

Angular distribution of $$gamma$$ rays from a neutron-induced $$p$$-wave resonance of $$^{132}$$Xe

Okudaira, Takuya*; Tani, Yuika*; Endo, Shunsuke; Doskow, J.*; Fujioka, Hiroyuki*; Hirota, Katsuya*; Kameda, Kento*; Kimura, Atsushi; Kitaguchi, Masaaki*; Luxnat, M.*; et al.

Physical Review C, 107(5), p.054602_1 - 054602_7, 2023/05

https://doi.org/10.1103/PhysRevC.107.054602
 Times Cited Count：2 Percentile：79.22(Physics, Nuclear)

no abstracts in English

Journal Articles

Measurement of the transverse asymmetry of $$gamma$$ rays in the $$^{117}$$Sn($$n,gamma$$)$$^{118}$$Sn reaction

Endo, Shunsuke; Okudaira, Takuya*; Abe, Ryota*; Fujioka, Hiroyuki*; Hirota, Katsuya*; Kimura, Atsushi; Kitaguchi, Masaaki*; Oku, Takayuki; Sakai, Kenji; Shima, Tatsushi*; et al.

Physical Review C, 106(6), p.064601_1 - 064601_7, 2022/12

https://doi.org/10.1103/PhysRevC.106.064601
 Times Cited Count：3 Percentile：61.19(Physics, Nuclear)

no abstracts in English

Journal Articles

Angular distribution of $$gamma$$ rays from the $$p$$-wave resonance of $$^{118}$$Sn

Koga, Jun*; Takada, Shusuke*; Endo, Shunsuke; Fujioka, Hiroyuki*; Hirota, Katsuya*; Ishizaki, Kohei*; Kimura, Atsushi; Kitaguchi, Masaaki*; Niinomi, Yudai*; Okudaira, Takuya*; et al.

Physical Review C, 105(5), p.054615_1 - 054615_5, 2022/05

https://doi.org/10.1103/PhysRevC.105.054615
 Times Cited Count：4 Percentile：71.46(Physics, Nuclear)

no abstracts in English

Journal Articles

Energy-dependent angular distribution of individual $$gamma$$ rays in the $$^{139}$$La($$n, gamma$$)$$^{140}$$La$$^{ast}$$ reaction

Okudaira, Takuya*; Endo, Shunsuke; Fujioka, Hiroyuki*; Hirota, Katsuya*; Ishizaki, Kohei*; Kimura, Atsushi; Kitaguchi, Masaaki*; Koga, Jun*; Niinomi, Yudai*; Sakai, Kenji; et al.

Physical Review C, 104(1), p.014601_1 - 014601_6, 2021/07

https://doi.org/10.1103/PhysRevC.104.014601
 Times Cited Count：4 Percentile：54.40(Physics, Nuclear)

Journal Articles

Transverse asymmetry of $$gamma$$ rays from neutron-induced compound states of $$^{140}$$La

Yamamoto, Tomoki*; Okudaira, Takuya; Endo, Shunsuke; Fujioka, Hiroyuki*; Hirota, Katsuya*; Ino, Takashi*; Ishizaki, Kohei*; Kimura, Atsushi; Kitaguchi, Masaaki*; Koga, Jun*; et al.

Physical Review C, 101(6), p.064624_1 - 064624_8, 2020/06

https://doi.org/10.1103/PhysRevC.101.064624
 Times Cited Count：9 Percentile：72.05(Physics, Nuclear)

Journal Articles

Measurement of the angular distribution of $$gamma$$-rays after neutron capture by $$^{139}$$La for a T-violation search

Okudaira, Takuya; Shimizu, Hirohiko*; Kitaguchi, Masaaki*; Hirota, Katsuya*; Haddock, C. C.*; Ito, Ikuya*; Yamamoto, Tomoki*; Endo, Shunsuke*; Ishizaki, Kohei*; Sato, Takumi*; et al.

EPJ Web of Conferences, 219, p.09001_1 - 09001_6, 2019/12

https://doi.org/10.1051/epjconf/201921909001

Parity violating effects enhanced by up to 10$$^6$$ times have been observed in several neutron induced compound nuclei. There is a theoretical prediction that time reversal (T) violating effects can also be enhanced in these nuclei implying that T-violation can be searched for by making very sensitive measurements. However, the enhancement factor has not yet been measured in all nuclei. The angular distribution of the (n,$$gamma$$) reaction was measured with $$^{139}$$La by using a germanium detector assembly at J-PARC, and the enhancement factor was obtained. From the result, the measurement time to achieve the most sensitive T-violation search was estimated as 1.4 days, and a 40% polarized $$^{139}$$La target and a 70% polarized $$^3$$He spin filter whose thickness is 70 atm$$cdot$$cm are needed. Therefore high quality $$^3$$He spin filter is developed in JAEA. The measurement result of the (n,$$gamma$$) reaction at J-PARC and the development status of the $$^3$$He spin filter will be presented.

Journal Articles

Angular distribution of $$gamma$$ rays from neutron-induced compound states of $$^{140}$$La

Okudaira, Takuya*; Takada, Shusuke*; Hirota, Katsuya*; Kimura, Atsushi; Kitaguchi, Masaaki*; Koga, Jun*; Nagamoto, Kosuke*; Nakao, Taro*; Okada, Anju*; Sakai, Kenji; et al.

Physical Review C, 97(3), p.034622_1 - 034622_15, 2018/03

https://doi.org/10.1103/PhysRevC.97.034622
 Times Cited Count：13 Percentile：72.96(Physics, Nuclear)

Journal Articles

Characterization of germanium detectors for the measurement of the angular distribution of prompt $$gamma$$-rays at the ANNRI in the MLF of the J-PARC

Takada, Shusuke*; Okudaira, Takuya*; Goto, Fumiya*; Hirota, Katsuya*; Kimura, Atsushi; Kitaguchi, Masaaki*; Koga, Jun*; Nakao, Taro*; Sakai, Kenji; Shimizu, Hirohiko*; et al.

Journal of Instrumentation (Internet), 13(2), p.P02018_1 - P02018_21, 2018/02

https://doi.org/10.1088/1748-0221/13/02/P02018
 Times Cited Count：6 Percentile：30.28(Instruments & Instrumentation)

Oral presentation

Plan for the T-violation search using compound nuclei and measurement of the spin-dependent neutron absorption cross section with polarized nuclei

Okudaira, Takuya*; Abe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Endo, Shunsuke; Oku, Takayuki; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; Sakai, Kenji; et al.

no journal, , 

no abstracts in English

Oral presentation

Prompt $$gamma$$-ray measurement from the neutron capture reaction of Pd isotopes in the eV energy range

Yoshikawa, Hiromoto*; Abe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; et al.

no journal, , 

no abstracts in English

Oral presentation

Measurement of the circular polarization of $$gamma$$-rays from the $$^{139}$$La(n,$$gamma$$)$$^{140}$$La reactions

Endo, Shunsuke; Okudaira, Takuya*; Kameda, Kento*; Kawamura, Shiori*; Kitaguchi, Masaaki*; Kimura, Atsushi; Sakai, Kenji; Shima, Tatsushi*; Shimizu, Hirohiko*; Takada, Shusuke*; et al.

no journal, , 

no abstracts in English

Oral presentation

Measurement of spin-angular correlation terms in neutron induced reactions for search of time-reversal violation

Endo, Shunsuke; Fujioka, Hiroyuki*; Ide, Ikuo*; Iinuma, Masataka*; Ito, Yuki*; Kameda, Kento*; Kawamura, Shiori*; Kimura, Atsushi; Kitaguchi, Masaaki*; Oku, Takayuki; et al.

no journal, , 

no abstracts in English

Oral presentation

Current status for the search of time-reversal symmetry violation using compound nuclear reactions

Endo, Shunsuke; Kimura, Atsushi; Shimizu, Hirohiko*; Fujioka, Hiroyuki*; Ide, Ikuo*; Sakai, Kenji; Kameda, Kento*; Kitaguchi, Masaaki*; Iinuma, Masataka*; Kawamura, Shiori*; et al.

no journal, , 

Oral presentation

Measurements of parity violation in neutron induced reactions

Snow, W. M.*; Auton, C.*; Endo, Shunsuke; Fujioka, Hiroyuki*; Ide, Ikuo*; Ino, Takashi*; Goto, Yu*; Kawamura, Shiori*; Kitaguchi, Masaaki*; Kobayashi, Ryuju*; et al.

no journal, , 

no abstracts in English

Oral presentation

A Measurement of the final-state dependence of the parity violation in a compound nucleus with $$^{139}$$La

Goto, Yu*; Ito, Yuki*; Ide, Ikuo*; Ino, Takashi*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Okuizumi, Mao*; Kameda, Kento*; Kawamura, Shiori*; et al.

no journal, , 

no abstracts in English

Oral presentation

Measurement of $$sigma_ncdothat{k}_gamma$$ angular dependent term of $$^{139}$$La(n,$$gamma$$)$$^{140}$$La reaction for polarized neutrons

Abe, Ryota*; Ishizaki, Kohei*; Ito, Yuki*; Endo, Shunsuke; Oku, Takayuki; Okudaira, Takuya*; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; Sakai, Kenji; et al.

no journal, , 

no abstracts in English

Oral presentation

On the feasibility of time-reversal invariance violation in neutron transmission

Nakabe, Rintaro*; Endo, Shunsuke; Fujioka, Hiroyuki*; Ide, Ikuo*; Ino, Takashi*; Kawamura, Shiori*; Kitaguchi, Masaaki*; Kobayashi, Ryuju*; Oku, Takayuki; Okudaira, Takuya*; et al.

no journal, , 

no abstracts in English

Oral presentation

Measurement of polarization dependence for capture cross-section of $$^{117}$$Sn($$overrightarrow{n}$$,$$gamma$$) reaction

Endo, Shunsuke; Abe, Ryota*; Ishizaki, Kohei*; Oku, Takayuki; Okudaira, Takuya*; Kameda, Kento*; Kitaguchi, Masaaki*; Kimura, Atsushi; Sakai, Kenji; Shima, Tatsushi*; et al.

no journal, , 

no abstracts in English

28 (Records 1-20 displayed on this page)