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Your search keyword '"Furuno, T."' showing total 13 results
Start Over Author "Furuno, T." Journal physics letters b
13 results on '"Furuno, T."'

1. Search for the 6α condensed state in 24Mg using the 12C+12C scattering

Author

Fujikawa, Y., primary, Kawabata, T., additional, Adachi, S., additional, Enyo, S., additional, Furuno, T., additional, Hijikata, Y., additional, Himi, K., additional, Hirose, K., additional, Honda, Y., additional, Inaba, K., additional, Makii, H., additional, Miyamoto, K., additional, Murata, M., additional, Nishio, K., additional, Okamoto, S., additional, Orlandi, R., additional, Sakanashi, K., additional, Suzaki, F., additional, Tsuji, S., additional, Yahiro, K., additional, and Zenihiro, J., additional

Published
2023
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3. Candidates for the 5α condensed state in ²⁰Ne

Author

Adachi, S., Fujikawa, Y., Kawabata, T., Akimune, H., Doi, T., Furuno, T., Harada, T., Inaba, K., Ishida, S., Itoh, M., Iwamoto, C., Kobayashi, N., Maeda, Y., Matsuda, Y., Murata, M., Okamoto, S., Sakaue, A., Sekiya, R., Tamii, A., and Tsumura, M.

Subjects
²⁰Ne, Alpha-particle condensed state, Alpha decay, Inelastic alpha scattering, Cluster structure
Abstract

We conducted the coincidence measurement of α particles inelastically scattered from ²⁰Ne at 0° and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at , Ex = 23.6, 21.8, and 21.2 MeV in ²⁰Ne are strongly coupled to a candidate for the 4α condensed state in ¹⁶O. This result presents the first strong evidence that these states are the candidates for the 5α condensed state., ネオン20原子核の新しい存在形態の発見 --低密度原子核物質の解明に向けて--. 京都大学プレスリリース. 2021-06-15.

Published
2021

4. First experimental determination of the radiative-decay probability of the 31− state in ¹²C for estimating the triple alpha reaction rate in high temperature environments

Author

Tsumura, M., Kawabata, T., Takahashi, Y., Adachi, S., Akimune, H., Ashikaga, S., Baba, T., Fujikawa, Y., Fujimura, H., Fujioka, H., Furuno, T., Hashimoto, T., Harada, T., Ichikawa, M., Inaba, K., Ishii, Y., Itagaki, N., Itoh, M., Iwamoto, C., Kobayashi, N., Koshikawa, A., Kubono, S., Maeda, Y., Matsuda, Y., Matsumoto, S., Miki, K., Morimoto, T., Murata, M., Nanamura, T., Ou, I., Sakaguchi, S., Sakaue, A., Sferrazza, M., Suzuki, K.N., Takeda, T., Tamii, A., Watanabe, K., Watanabe, Y.N., Yoshida, H.P., and Zenihiro, J.

Subjects
Radiative-decay probability, Triple alpha reaction, Nucleosynthesis
Abstract

The triple alpha reaction is one of the most important reactions in the nuclear astrophysics. However, its reaction rate in high temperature environments at T₉>2 was still uncertain. One of the major origins of the uncertainty was that the radiative-decay probability of the 3⁻₁ state in ¹²C was unknown. In the present work, we have determined the radiative-decay probability of the 3⁻₁ state to be 1.3[+1.2][-1.1] × 10⁻⁶ by measuring the ¹H(¹²C, ¹²Cp) reaction for the first time, and derived the triple alpha reaction rate in high temperature environments from the measured radiative-decay probability. The present result suggests that the 3⁻₁ state noticeably enhances the triple alpha reaction rate although the contribution from the 3⁻₁ state had been assumed to be small.

Published
2021

5. Candidates for the 5α condensed state in 20Ne

Author

Adachi, S., primary, Fujikawa, Y., additional, Kawabata, T., additional, Akimune, H., additional, Doi, T., additional, Furuno, T., additional, Harada, T., additional, Inaba, K., additional, Ishida, S., additional, Itoh, M., additional, Iwamoto, C., additional, Kobayashi, N., additional, Maeda, Y., additional, Matsuda, Y., additional, Murata, M., additional, Okamoto, S., additional, Sakaue, A., additional, Sekiya, R., additional, Tamii, A., additional, and Tsumura, M., additional

Published
2021
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6. First experimental determination of the radiative-decay probability of the 31− state in 12C for estimating the triple alpha reaction rate in high temperature environments

Author

Tsumura, M., primary, Kawabata, T., additional, Takahashi, Y., additional, Adachi, S., additional, Akimune, H., additional, Ashikaga, S., additional, Baba, T., additional, Fujikawa, Y., additional, Fujimura, H., additional, Fujioka, H., additional, Furuno, T., additional, Hashimoto, T., additional, Harada, T., additional, Ichikawa, M., additional, Inaba, K., additional, Ishii, Y., additional, Itagaki, N., additional, Itoh, M., additional, Iwamoto, C., additional, Kobayashi, N., additional, Koshikawa, A., additional, Kubono, S., additional, Maeda, Y., additional, Matsuda, Y., additional, Matsumoto, S., additional, Miki, K., additional, Morimoto, T., additional, Murata, M., additional, Nanamura, T., additional, Ou, I., additional, Sakaguchi, S., additional, Sakaue, A., additional, Sferrazza, M., additional, Suzuki, K.N., additional, Takeda, T., additional, Tamii, A., additional, Watanabe, K., additional, Watanabe, Y.N., additional, Yoshida, H.P., additional, and Zenihiro, J., additional

Published
2021
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7. Compressional-mode resonances in the molybdenum isotopes: Emergence of softness in open-shell nuclei near A = 90

Author

Howard, K.B., primary, Garg, U., additional, Itoh, M., additional, Akimune, H., additional, Fujiwara, M., additional, Furuno, T., additional, Gupta, Y.K., additional, Harakeh, M.N., additional, Inaba, K., additional, Ishibashi, Y., additional, Karasudani, K., additional, Kawabata, T., additional, Kohda, A., additional, Matsuda, Y., additional, Murata, M., additional, Nakamura, S., additional, Okamoto, J., additional, Ota, S., additional, Piekarewicz, J., additional, Sakaue, A., additional, Şenyiğit, M., additional, Tsumura, M., additional, and Yang, Y., additional

Published
2020
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8. Compression-mode resonances in the calcium isotopes and implications for the asymmetry term in nuclear incompressibility

Author

Howard, K.B., primary, Garg, U., additional, Itoh, M., additional, Akimune, H., additional, Bagchi, S., additional, Doi, T., additional, Fujikawa, Y., additional, Fujiwara, M., additional, Furuno, T., additional, Harakeh, M.N., additional, Hijikata, Y., additional, Inaba, K., additional, Ishida, S., additional, Kalantar-Nayestanaki, N., additional, Kawabata, T., additional, Kawashima, S., additional, Kitamura, K., additional, Kobayashi, N., additional, Matsuda, Y., additional, Nakagawa, A., additional, Nakamura, S., additional, Nosaka, K., additional, Okamoto, S., additional, Ota, S., additional, Weyhmiller, S., additional, and Yang, Z., additional

Published
2020
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9. First measurement of isoscalar giant resonances in a stored-beam experiment

Author

Zamora, J.C., primary, Aumann, T., additional, Bagchi, S., additional, Bönig, S., additional, Csatlós, M., additional, Dillmann, I., additional, Dimopoulou, C., additional, Egelhof, P., additional, Eremin, V., additional, Furuno, T., additional, Geissel, H., additional, Gernhäuser, R., additional, Harakeh, M.N., additional, Hartig, A.-L., additional, Ilieva, S., additional, Kalantar-Nayestanaki, N., additional, Kiselev, O., additional, Kollmus, H., additional, Kozhuharov, C., additional, Krasznahorkay, A., additional, Kröll, Th., additional, Kuilman, M., additional, Litvinov, S., additional, Litvinov, Yu.A., additional, Mahjour-Shafiei, M., additional, Mutterer, M., additional, Nagae, D., additional, Najafi, M.A., additional, Nociforo, C., additional, Nolden, F., additional, Popp, U., additional, Rigollet, C., additional, Roy, S., additional, Scheidenberger, C., additional, von Schmid, M., additional, Steck, M., additional, Streicher, B., additional, Stuhl, L., additional, Thürauf, M., additional, Uesaka, T., additional, Weick, H., additional, Winfield, J.S., additional, Winters, D., additional, Woods, P.J., additional, Yamaguchi, T., additional, Yue, K., additional, and Zenihiro, J., additional

Published
2016
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10. Are there nuclear structure effects on the isoscalar giant monopole resonance and nuclear incompressibility near A∼ 90?

Author

Gupta, Y.K., primary, Garg, U., additional, Howard, K.B., additional, Matta, J.T., additional, Şenyiğit, M., additional, Itoh, M., additional, Ando, S., additional, Aoki, T., additional, Uchiyama, A., additional, Adachi, S., additional, Fujiwara, M., additional, Iwamoto, C., additional, Tamii, A., additional, Akimune, H., additional, Kadono, C., additional, Matsuda, Y., additional, Nakahara, T., additional, Furuno, T., additional, Kawabata, T., additional, Tsumura, M., additional, Harakeh, M.N., additional, and Kalantar-Nayestanaki, N., additional

Published
2016
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11. Effect of ground-state deformation on the isoscalar giant monopole resonance and the first observation of overtones of the isoscalar giant quadrupole resonance in rare-Earth Nd isotopes.

Author

Abdullah, M., Bagchi, S., Harakeh, M.N., Akimune, H., Das, D., Doi, T., Donaldson, L.M., Fujikawa, Y., Fujiwara, M., Furuno, T., Garg, U., Gupta, Y.K., Howard, K.B., Hijikata, Y., Inaba, K., Ishida, S., Itoh, M., Kalantar-Nayestanaki, N., Kar, D., and Kawabata, T.

Subjects
*RESONANCE, *NUCLEAR research, *QUADRUPOLES, *ISOTOPES
Abstract

The strength distributions of the Isoscalar Giant Monopole Resonance (ISGMR) and Isoscalar Giant Quadrupole Resonance (ISGQR) in 142,146−150Nd have been determined via inelastic α -particle scattering with the Grand Raiden (GR) Spectrometer at the Research Center for Nuclear Physics (RCNP), Japan. In the deformed nuclei 146−150Nd, the ISGMR strength distributions exhibit a splitting into two components, while the nearly spherical nucleus 142Nd displays a single peak in the ISGMR strength distribution. A noteworthy achievement in this study is the first-time detection of overtones in the Isoscalar Giant Quadrupole Resonance (ISGQR) strength distributions within Nd isotopes at an excitation energy around 25 MeV obtained through Multipole Decomposition Analysis (MDA). [ABSTRACT FROM AUTHOR]

Published
2024
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12. Are there nuclear structure effects on the isoscalar giant monopole resonance and nuclear incompressibility near A ∼ 90?

Author

Gupta, Y.K., Garg, U., Howard, K.B., Matta, J.T., Şenyiğit, 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., and Tsumura, M.

Subjects
*NUCLEAR structure, *SCALAR field theory, *PARTICLE scattering functions, *PHYSICAL measurements, *NUCLEAR shell theory
Abstract

“Background-free” spectra of inelastic α -particle scattering have been measured at a beam energy of 385 MeV in 90,92 Zr and 92 Mo at extremely forward angles, including 0°. The ISGMR strength distributions for the three nuclei coincide with each other, establishing clearly that nuclear incompressibility is not influenced by nuclear shell structure near A ∼ 90 as was claimed in recent measurements. [ABSTRACT FROM AUTHOR]

Published
2016
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13. First experimental determination of the radiative-decay probability of the [formula omitted] state in 12C for estimating the triple alpha reaction rate in high temperature environments.

Author

Tsumura, M., Kawabata, T., Takahashi, Y., Adachi, S., Akimune, H., Ashikaga, S., Baba, T., Fujikawa, Y., Fujimura, H., Fujioka, H., Furuno, T., Hashimoto, T., Harada, T., Ichikawa, M., Inaba, K., Ishii, Y., Itagaki, N., Itoh, M., Iwamoto, C., and Kobayashi, N.

Subjects
*HIGH temperatures, *NUCLEAR reactions, *NUCLEAR astrophysics, *PROBABILITY theory, *LASER cooling
Abstract

The triple alpha reaction is one of the most important reactions in the nuclear astrophysics. However, its reaction rate in high temperature environments at T 9 > 2 was still uncertain. One of the major origins of the uncertainty was that the radiative-decay probability of the 3 1 − state in 12C was unknown. In the present work, we have determined the radiative-decay probability of the 3 1 − state to be 1.3 − 1.1 + 1.2 × 10 − 6 by measuring the 1H(12C,12C p) reaction for the first time, and derived the triple alpha reaction rate in high temperature environments from the measured radiative-decay probability. The present result suggests that the 3 1 − state noticeably enhances the triple alpha reaction rate although the contribution from the 3 1 − state had been assumed to be small. [ABSTRACT FROM AUTHOR]

Published
2021
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