☆ 4.5 Article

Precision evaluation of the Ga-71(nu(e),e(-)) solar neutrino capture rate from the (He-3,t) charge-exchange reaction

PHYSICAL REVIEW C (2015)

期刊

PHYSICAL REVIEW C

卷 91, 期 3, 页码 -

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AMER PHYSICAL SOC

DOI: 10.1103/PhysRevC.91.034608

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Physics, Nuclear

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Directorate of RCNP
Deutsche Forschungsgemeinschaft (Germany) (DFG) [FR 601/3-1]
Al-Nahrain University/Ministry of Higher Education and Scientific Research of Iraq (Republic of Iraq)
MEXT (Japan) [22540310]

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摘要

A precision measurement of the Ga-71(He-3,t)Ge-71 charge-exchange reaction was performed. By using a rather complete set of theoretical form factors to describe the cross-section angular distributions over a large angular range, the Gamow-Teller strength distribution up to the effective neutron-separation energy in Ge-71 was extracted. The data and the analysis constrain the Ga-71(nu(e),e(-)) solar neutrino rate in a neutrino nonoscillation scenario. For nonoscillating neutrinos we report a solar neutrino capture rate of 122.4 +/- 3.4(stat) +/- 1.1(sys) SNU, which is lower than the presently accepted value of 132 +/- 18 SNU, though not in disagreement given the quoted errors.

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Correction Multidisciplinary Sciences

First observation of 28O (vol 620, pg 965, 2023)

Y. Kondo, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, F. Delaunay, A. Delbart, Q. Deshayes, Zs. Dombradi, C. A. Douma, A. Ekstroem, Z. Elekes, C. Forssen, I. Gasparic, J. -m. Gheller, J. Gibelin, A. Gillibert, G. Hagen, M. N. Harakeh, A. Hirayama, C. R. Hoffman, M. Holl, A. Horvat, A. Horvath, J. W. Hwang, T. Isobe, W. G. Jiang, J. Kahlbow, N. Kalantar-Nayestanaki, S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Koerper, S. Koyama, I. Kuti, V. Lapoux, S. Lindberg, F. M. Marques, S. Masuoka, J. Mayer, K. Miki, T. Murakami, M. Najafi, T. Nakamura, K. Nakano, N. Nakatsuka, T. Nilsson, A. Obertelli, K. Ogata, F. de Oliveira Santos, N. A. Orr, H. Otsu, T. Otsuka, T. Ozaki, V. Panin, T. Papenbrock, S. Paschalis, A. Revel, D. Rossi, A. T. Saito, T. Y. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, N. Shimizu, Y. Shimizu, H. Simon, D. Sohler, O. Sorlin, L. Stuhl, Z. H. Sun, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Toernqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, N. Tsunoda, T. Uesaka, Y. Utsuno, I. Vernon, H. Wang, Z. Yang, M. Yasuda, K. Yoneda, S. Yoshida

NATURE (2023)

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Proceedings Paper Nuclear Science & Technology

Studies of three-and four-body hypernuclei with heavy-ion beams, nuclear emulsions and machine learning

T. R. Saito, P. Achenbach, H. Alibrahim Alfaki, F. Amjad, M. Armstrong, K. -H. Behr, J. Benlliure, Z. Brencic, T. Dickel, V. Drozd, S. Dubey, H. Ekawa, S. Escrig, M. Feijoo-Fontan, Y. Gao, H. Geissel, F. Goldenbaum, A. Grana Gonzalez, E. Haettner, M. N. Harakeh, Y. He, H. Heggen, C. Hornung, N. Hubbard, K. Itahashi, N. Kalantar-Nayestanaki, A. Kasagi, M. Kavatsyuk, E. Kazantseva, A. Khreptak, R. Knoebel, H. Kollmus, D. Kostyleva, S. Kraft-Bermuth, N. Kurz, E. Liu, S. Minami, D. J. Morrissey, P. Moskal, I. Mukha, A. Muneem, M. Nakagawa, K. Nakazawa, C. Nociforo, H. J. Ong, S. Pietri, J. Pochodzalla, S. Purushothaman, C. Rappold, E. Rocco, J. L. Rodriguez-Sanchez, P. Roy, R. Ruber, N. Saito, S. Schadmand, C. Scheidenberger, P. Schwarz, R. Sekiya, V. Serdyuk, M. Skurzok, B. Streicher, S. Sugimoto, K. Suzuki, B. Szczepanczyk, M. Taki, Y. K. Tanaka, X. Tang, N. Tortorelli, M. Vencelj, H. Wang, T. Weber, H. Weick, M. Will, K. Wimmer, A. Yamamoto, A. Yanai, J. Yoshida, M. Yoshimoto, J. Zhao

Summary: Recent experiments on few-body hypernuclei have sparked increased interest. Findings have shown that the lifetime of the lightest hypernucleus, hypertriton, is significantly shorter than expected, and the measured binding energy contradicts previous knowledge. Accurate measurements of the hypertriton's lifetime and binding energy are necessary, as well as further study on the existence of the unprecedented Λ nn bound state.

28TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, INPC 2022 (2023)

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Article Physics, Nuclear

Silicon tracker array for RIB experiments at SAMURAI

A. Stefanescu, V Panin, L. Trache, T. Motobayashi, H. Otsu, A. Saastamoinen, T. Uesaka, L. Stuhl, J. Tanaka, D. Tudor, I. C. Stefanescu, A. E. Spiridon, K. Yoneda, H. Baba, M. Kurokawa, Y. Togano, Z. Halasz, M. Sasano, S. Ota, Y. Kubota, D. S. Ahn, T. Kobayashi, Z. Elekes, N. Fukuda, H. Takeda, D. Kim, E. Takada, H. Suzuki, K. Yoshida, Y. Shimizu, H. N. Liu, Y. L. Sun, T. Isobe, J. Gibelin, P. J. Li, J. Zenihiro, F. M. Marques, M. N. Harakeh, G. G. Kiss, A. Kurihara, M. Yasuda, T. Nakamura, S. Park, Z. Yang, T. Harada, M. Nishimura, H. Sato, I. S. Hahn, K. Y. Chae, J. M. Elson, L. G. Sobotka, C. A. Bertulani

Summary: This work describes the development of a silicon tracker system for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number identification of relativistic heavy ions and protons, and has shown good performance in two pilot experiments. The physics justification for such a system is also presented.

EUROPEAN PHYSICAL JOURNAL A (2022)

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Article Physics, Nuclear

Border of the island of inversion: Unbound states in 29Ne

M. Holl, S. Lindberg, A. Heinz, Y. Kondo, T. Nakamura, J. A. Tostevin, H. Wang, T. Nilsson, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, H. L. Crawford, F. Delaunay, A. Delbart, Q. Deshayes, P. Diaz Fernandez, Z. Dombradi, C. A. Douma, Z. Elekes, P. Fallon, I Gasparic, J-M Gheller, J. Gibelin, A. Gillibert, M. N. Harakeh, A. Hirayama, C. R. Hoffman, A. Horvat, A. Horvath, J. W. Hwang, T. Isobe, J. Kahlbow, N. Kalantar-Nayestanaki, S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Koerper, S. Koyama, I Kuti, V Lapoux, F. M. Marques, S. Masuoka, J. Mayer, K. Miki, T. Murakami, M. Najafi, K. Nakano, N. Nakatsuka, A. Obertelli, F. de Oliveira Santos, N. A. Orr, H. Otsu, T. Ozaki, V Panin, S. Paschalis, A. Revel, D. Rossi, A. T. Saito, T. Y. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, Y. Shimizu, H. Simon, D. Sohler, O. Sorlin, L. Stuhl, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Toernqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, T. Uesaka, Z. Yang, M. Yasuda, K. Yoneda

Summary: In this study, the unbound states of Ne-29 were investigated for the first time. Through analyzing resonance properties, partial cross sections, and momentum distributions, some important conclusions were drawn, including the first evidence for f(7/2) single particle strength in Ne-29.

PHYSICAL REVIEW C (2022)

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Article Physics, Nuclear

Multiprobe study of excited states in 12C: Disentangling the sources of monopole strength between the energy of the Hoyle state and Ex=13 MeV

K. C. W. Li, P. Adsley, R. Neveling, P. Papka, F. D. Smit, E. Nikolskii, J. W. Brummer, L. M. Donaldson, M. Freer, M. N. Harakeh, F. Nemulodi, L. Pellegri, V Pesudo, M. Wiedeking, E. Z. Buthelezi, V Chudoba, S. Fortsch, P. Jones, M. Kamil, J. P. Mira, G. G. O'Neill, E. Sideras-Haddad, B. Singh, S. Siem, G. F. Steyn, J. A. Swartz, I. T. Usman, J. J. van Zyl

Summary: This study confirms the existence of additional monopole strength at around 9 MeV in C-12, which cannot be explained by existing models. The results suggest the presence of a new breathing-mode excitation in the Hoyle state.

PHYSICAL REVIEW C (2022)

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Article Physics, Nuclear

γ decay to the ground state from the excitations above the neutron threshold in the 208Pb(p, p′ γ) reaction at 85 MeV

B. Wasilewska, M. Kmiecik, M. Ciemala, A. Maj, F. C. L. Crespi, A. Bracco, M. N. Harakeh, P. Bednarczyk, S. Bottoni, S. Brambilla, F. Camera, I Ciepal, M. Csatlos, B. Fornal, V Gaudilla, J. Grebosz, J. Isaak, A. J. Krasznahorkay, S. Kihel, M. Krzysiek, P. Lasko, S. Leoni, M. Lewitowicz, M. Matejska-Minda, K. Mazurek, P. J. Napiorkowski, W. Parol, P. Pawlowski, L. Q. Qi, M. Saxena, Ch Schmitt, Y. Sobolev, B. Sowicki, M. Stanoiu, A. Tamii, O. Wieland, M. Zieblinski, N. Cieplicka-Orynczak, L. W. Iskra, M. Jezabek, J. Lukasik

Summary: A new measurement of gamma decay from states above the neutron threshold in Pb-208 was performed in Krakow, Poland. The experiment aimed to observe gamma decay to the ground state from the isoscalar giant quadrupole resonance (ISGQR). Data obtained from proton inelastic scattering at a beam energy of 85 MeV were analyzed to extract the branching ratio of ISGQR gamma decay to the ground state.

PHYSICAL REVIEW C (2022)

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