論文 - 秋宗 秀俊
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Effect of ground-state deformation on isoscalar giant resonances in Si 28 査読あり
T Peach, U Garg, YK Gupta, J Hoffman, JT Matta, D Patel, PV Madhusudhana Rao, K Yoshida, M Itoh, M Fujiwara, K Hara, H Hashimoto, K Nakanishi, M Yosoi, H Sakaguchi, S Terashima, S Kishi, T Murakami, M Uchida, Y Yasuda, H Akimune, T Kawabata, MN Harakeh, G Colò
Phys. Rev. C 93 64325 2016年11月
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nterference Effect between ϕ and Λ (1520) Production Channels in the γ p→ K+ K− p Reaction near Threshold 査読あり
SY Ryu, JK Ahn, T Nakano, DS Ahn, S Ajimura, H Akimune, Y Asano, WC Chang, JY Chen, S Daté, H Ejiri, H Fujimura, M Fujiwara, S Fukui, S Hasegawa, K Hicks, K Horie, T Hotta, SH Hwang, K Imai, T Ishikawa, T Iwata, Y Kato, H Kawai, K Kino, H Kohri, Y Kon, N Kumagai, PJ Lin, Y Maeda, S Makino, T Matsuda, N Matsuoka, T Mibe, M Miyabe, M Miyachi, Y Morino, N Muramatsu, R Murayama, Y Nakatsugawa, M Niiyama, M Nomachi, Y Ohashi, H Ohkuma, T Ohta, T Ooba, DS Oshuev, JD Parker, C Rangacharyulu, A Sakaguchi, T Sawada, PM Shagin, Y Shiino, H Shimizu, EA Strokovsky, Y Sugaya, M Sumihama, AO Tokiyasu, Y Toi, H Toyokawa, T Tsunemi, M Uchida, M Ungaro, A Wakai, CW Wang, SC Wang, K Yonehara, T Yorita, M Yoshimura, M Yosoi, RGT Zegers, LEPS Collaboration
Phys. Rev. Lett. 116 232001 2016年11月
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Deformation effects on isoscalar giant resonances in Mg 24 査読あり
YK Gupta, U Garg, J Hoffman, J Matta, PV Madhusudhana Rao, D Patel, T Peach, K Yoshida, M Itoh, M Fujiwara, K Hara, H Hashimoto, K Nakanishi, M Yosoi, H Sakaguchi, S Terashima, S Kishi, T Murakami, M Uchida, Y Yasuda, H Akimune, T Kawabata, MN Harakeh
Phys. Rev. C 93 44324 2016年11月
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Spatial anisotropy of neutrons emitted from the Fe 56 (γ, n) Fe 55 reaction with a linearly polarized γ-ray beam 査読あり
T Hayakawa, T Shizuma, S Miyamoto, S Amano, A Takemoto, M Yamaguchi, K Horikawa, H Akimune, S Chiba, K Ogata, M Fujiwara
Phys. Rev. C 93 44313 2016年11月
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Measurement of the 77Se (γ, n) cross section and uncertainty evaluation of the 79Se (n, γ) cross section 査読あり
Fumito Kitatani, Hideo Harada, Shinji Goko, Nobuyuki Iwamoto, Hiroaki Utsunomiya, Hidetoshi Akimune, Hiroyuki Toyokawa, Kawakatsu Yamada, Masayuki Igashira
Journal of Nuclear Science and Technology 53 457 2016年11月
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Gupta Y.K, Garg U, Howard K.B, Matta J.T, ?enyi?it M, Itoh M, Ando S, Aoki T, Uchiyama A, Adachi S, Fujiwara M, Iwamoto C, Tamii A, Akimune H, Kadono C, Matsuda Y, Nakahara T, Furuno T, Kawabata T, Tsumura M, Harakeh M.N, Kalantar-Nayestanaki N.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 760 482 - 485 2016年11月
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Ryu S.Y, Ahn J.K, Nakano T, Ahn D.S, Ajimura S, Akimune H, Asano Y, Chang W.C, Chen J.Y, Dat{\'e} S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Hasegawa S, Hicks K, Horie K, Hotta T, Hwang S.H, Imai K, Ishikawa T, Iwata T, Kato Y, Kawai H, Kino K, Kohri H, Kon Y, Kumagai N, Lin P.J, Maeda Y, Makino S, Matsuda T, Matsuoka N, Mibe T, Miyabe M, Miyachi M, Morino Y, Muramatsu N, Murayama R, Nakatsugawa Y, Nam S.I, Niiyama M, Nomachi M, Ohashi Y, Ohkuma H, Ohta T, Ooba T, Oshuev D.S, Parker J.D, Rangacharyulu C, Sakaguchi A, Sawada T, Shagin P.M, Shiino Y, Shimizu H, Strokovsky E.A, Sugaya Y, Sumihama M, Tokiyasu A.O, Toi Y, Toyokawa H, Tsunemi T, Uchida M, Ungaro M, Wakai A, Wang C.W, Wang S.C, Yonehara K, Yorita T, Yoshimura M, Yosoi M, Zegers R.G.T
Physical Review Letters 116 ( 23 ) 232001 2016年6月
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Effect of ground-state deformation on isoscalar giant resonances in Si-28
T. Peach, U. Garg, Y. K. Gupta, J. Hoffman, J. T. Matta, D. Patel, P. V. Madhusudhana Rao, K. Yoshida, M. Itoh, M. Fujiwara, K. Hara, H. Hashimoto, K. Nakanishi, M. Yosoi, H. Sakaguchi, S. Terashima, S. Kishi, T. Murakami, M. Uchida, Y. Yasuda, H. Akimune, T. Kawabata, M. N. Harakeh, G. Colo
PHYSICAL REVIEW C 93 ( 6 ) 64325 2016年6月
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出版者・発行元:AMER PHYSICAL SOC
Multipole strength distributions for isoscalar L <= 2 transitions in Si-28 have been extracted using 386-MeV inelastic a scattering at extremely forward angles, including 0 degrees. Observed strength distributions are in good agreement with microscopic calculations for an oblate-deformed ground state. In particular, a large peak at an excitation energy of 17.7 MeV in the isoscalar giant monopole resonance strength is consistent with the calculations.
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Hayakawa T, Shizuma T, Miyamoto S, Amano S, Takemoto A, Yamaguchi M, Horikawa K, Akimune H, Chiba S, Ogata K, Fujiwara M
Physical Review C 93 ( 4 ) 44313 2016年4月
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Kitatani F, Harada H, Goko S, Iwamoto N, Utsunomiya H, Akimune H, Toyokawa H, Yamada K, Igashira M
Journal of Nuclear Science and Technology 53 ( 4 ) 475 - 485 2016年4月
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Deformation effects on isoscalar giant resonances in Mg-24
Y. K. Gupta, U. Garg, J. Hoffman, J. Matta, P. V. Madhusudhana Rao, D. Patel, T. Peach, K. Yoshida, M. Itoh, M. Fujiwara, K. Hara, H. Hashimoto, K. Nakanishi, M. Yosoi, H. Sakaguchi, S. Terashima, S. Kishi, T. Murakami, M. Uchida, Y. Yasuda, H. Akimune, T. Kawabata, M. N. Harakeh
PHYSICAL REVIEW C 93 ( 4 ) 44324 2016年4月
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出版者・発行元:AMER PHYSICAL SOC
Strength distributions for isoscalar giant resonances with multipolarity L <= 2 have been determined in Mg-24 from "instrumental background-free" inelastic scattering of 386-MeV alpha particles at extreme forward angles, including 0 degrees. The isoscalar E0, E1, and E2 strengths are observed to be 57 +/- 7%, 111.1(-7.2)(+10.9)%, and 148.6 +/- 7.3%, respectively, of their energy-weighted sum rules in the excitation energy range of 6 to 35 MeV. The isoscalar giant monopole (ISGMR) and quadrupole (ISGQR) resonances exhibit a prominent K splitting which is consistent with microscopic theory for a prolate-deformed ground state of Mg-24. For the ISGQR it is due to splitting of the three K components, whereas for the ISGMR it is due to its coupling to the K = 0 component of the ISGQR. Deformation effects on the isoscalar giant dipole resonance are less pronounced, however.
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Measurement of microwave radiation from electron beam in the atmosphere
I. S. Ohta, H. Akimune, M. Fukushima, D. Ikeda, Y. Inome, J. N. Matthews, S. Ogio, H. Sagawa, T. Sako, T. Shibata, T. Yamamoto
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 810 44 - 50 2016年2月
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出版者・発行元:ELSEVIER SCIENCE BV
We report the use of an electron light source (ELS) located at the Telescope Array Observatory in Utah, USA, to measure the isotropic microwave radiation from air showers. To simulate extensive air showers, the ELS emits an electron beam into the atmosphere and a parabola antenna system for the satellite communication is used to measure the microwave radiation from the electron beam. Based on this measurement, an upper limit on the intensity of a 12.5 GHz microwave radiation at 0.5 m from a 10(18) eV air shower was estimated to be 3.96 x 10(-16) W m(-2) Hz(-1) with a 95% confidence level. (C) 2015 Elsevier B.V. All rights reserved.
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Bagchi S, Gibelin J, Harakeh M.N, Kalantar-Nayestanaki N, Achouri N.L, Akimune H, Bastin B, Boretzky K, Bouzomita H, Caama{\~n}o M, C{\`a}ceres L, Damoy S, Delaunay F, Fern{\'a}ndez-Dom{\'i}nguez B, Fujiwara M, Garg U, Grinyer G.F, Kamalou O, Khan E, Krasznahorkay A, Lhoutellier G, Libin J.F, Lukyanov S, Mazurek K, Najafi M.A, Pancin J, Penionzhkevich Y, Perrot L, Raabe R, Rigollet C, Roger T, Sambi S, Savajols H, Senoville M, Stodel C, Suen L, Thomas J.C, Vandebrouck M, Van de Walle J
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 751 371 - 375 2015年12月
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Precision evaluation of the Ga 71 (ν e, e−) solar neutrino capture rate from the (He 3, t) charge-exchange reaction 査読あり
D Frekers, T Adachi, H Akimune, M Alanssari, BA Brown, BT Cleveland, H Ejiri, H Fujita, Y Fujita, M Fujiwara, VN Gavrin, MN Harakeh, K Hatanaka, M Holl, C Iwamoto, A Lennarz, A Okamoto, H Okamura, T Suzuki, A Tamii
Phys. Rev. C 91 34608 2015年11月
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Observation of isoscalar multipole strengths in exotic doubly-magic 56 Ni in inelastic α scattering in inverse kinematics 査読あり
S Bagchi, J Gibelin, MN Harakeh, N Kalantar-Nayestanaki, NL Achouri, H Akimune, B Bastin, K Boretzky, H Bouzomita, M Caamaño, L Càceres, S Damoy, F Delaunay, B Fernández-Domínguez, M Fujiwara, U Garg, GF Grinyer, O Kamalou, E Khan, A Krasznahorkay, G Lhoutellier, JF Libin, S Lukyanov, K Mazurek, MA Najafi, J Pancin, Y Penionzhkevich, L Perrot, Riccardo Raabe, C Rigollet, T Roger, S Sambi, H Savajols, M Senoville, C Stodel, L Suen, JC Thomas, M Vandebrouck, J Van de Walle
Phys. Lett. B 751 371 2015年11月
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Splitting of ISGMR strength in the light-mass nucleus 24 Mg due to ground-state deformation 査読あり
YK Gupta, U Garg, JT Matta, D Patel, T Peach, J Hoffman, K Yoshida, M Itoh, M Fujiwara, K Hara, H Hashimoto, K Nakanishi, M Yosoi, H Sakaguchi, S Terashima, S Kishi, T Murakami, M Uchida, Y Yasuda, H Akimune, T Kawabata, MN Harakeh
Phys. Let. B 748 343 2015年11月
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Splitting of ISGMR strength in the light-mass nucleus Mg-24 due to ground-state deformation
Y. K. Gupta, U. Garg, J. T. Matta, D. Patel, T. Peach, J. Hoffman, K. Yoshida, M. Itoh, M. Fujiwara, K. Hara, H. Hashimoto, K. Nakanishi, M. Yosoi, H. Sakaguchi, S. Terashima, S. Kishi, T. Murakami, M. Uchida, Y. Yasuda, H. Akimune, T. Kawabata, M. N. Harakeh
PHYSICS LETTERS B 748 343 - 346 2015年9月
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出版者・発行元:ELSEVIER SCIENCE BV
The isoscalar giant monopole resonance (ISGMR) strength distribution in Mg-24 has been determined from background-free inelastic scattering of 386-MeV alpha particles at extreme forward angles, including 0 degrees The ISGMR strength distribution has been observed for the first time to have a two-peak structure in a light-mass nucleus. This splitting of ISGMR strength is explained well by microscopic theory in terms of the prolate deformation of the ground state of Mg-24. (C) 2015 The Authors. Published by Elsevier B.V.
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Frekers D, Adachi T, Akimune H, Alanssari M, Brown B.A, Cleveland B.T, Ejiri H, Fujita H, Fujita Y, Fujiwara M, Gavrin V.N, Harakeh M.N, Hatanaka K, Holl M, Iwamoto C, Lennarz A, Okamoto A, Okamura H, Suzuki T, Tamii A
Physical Review C - Nuclear Physics 91 ( 3 ) 34608 2015年3月
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Gupta Y.K, Garg U, Matta J.T, Patel D, Peach T, Hoffman J, Yoshida K, Itoh M, Fujiwara M, Hara K, Hashimoto H, Nakanishi K, Yosoi M, Sakaguchi H, Terashima S, Kishi S, Murakami T, Uchida M, Yasuda Y, Akimune H, Kawabata T, Harakeh M.N.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 751 597 2015年
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Ou I, Yamada Y, Mori T, Yano T, Sakuda M, Tamii A, Suzuki T, Yosoi M, Aoi N, Ideguchi E, Hashimoto T, Miki K, Ito T, Iwamoto C, Yamamoto T, Akimune H
AIP Conference Proceedings 1663 2015年