Abstract

The tetraneutron has attracted the attention of nuclear physicists during the past decades, but there is still no unambiguous confirmation of its existence or non-existence. A new experiment based on 8He(p,2p)7H{t+4 n} reaction, with direct detection of the four neutrons, has been carried out at RIBF, which can hopefully help to draw a definite conclusion on the tetraneutron system.

Details

Title
Experimental study of 4 n with 8He(p,2p) reaction
Author
Huang, S W 1 ; Yang, H 2 ; Marqués, F M 3 ; Achouri, N L 3 ; Ahn, D S 4 ; Aumann, T 5 ; Baba, H 4 ; Beaumel, D 6 ; Böhmer, M 7 ; Boretzky, K 8 ; Caamaño, M 9 ; Chen, S 10 ; Chiga, N 4 ; Cortés, M L 4 ; Cortina, D 9 ; Doornenbal, P 4 ; Douma, C A 11 ; Dufter, F 7 ; Feng, J 1 ; Fernández-Domínguez, B 9 ; Elekes, Z 12 ; Forsberg, U 13 ; Fujino, T 14 ; Fukuda, N 4 ; Gašparić, I 15 ; Z Ge 4 ; Gernhäuser, R 7 ; Gheller, J M 16 ; Gibelin, J 3 ; Gillibert, A 16 ; Godoy, B M 3 ; Halász, Z 17 ; Harada, T 18 ; Harakeh, M N 19 ; Hirayama, A 20 ; Inabe, N 4 ; Isobe, T 4 ; Kahlbow, J 21 ; Kalantar-Nayestanaki, N 10 ; Kim, D 22 ; Kim, S 22 ; Knösel, M A 23 ; Kobayashi, T 24 ; Kondo, Y 25 ; Koseoglou, P 5 ; Kubota, Y 4 ; Kuti, I 17 ; Lehr, C 21 ; Li, P J 10 ; Liu, Y 1 ; Maeda, Y 26 ; Masuoka, S 27 ; Matsumoto, M 20 ; Mayer, J 28 ; Miki, H 25 ; Miwa, M 29 ; Murray, I 4 ; Nakamura, T 25 ; Obertelli, A 23 ; Orr, N 3 ; Otsu, H 4 ; Panin, V 4 ; Park, S 22 ; Parlog, M 3 ; Paschalis, S 30 ; Potlog, M 31 ; Reichert, S 7 ; Revel, A 32 ; Rossi, D 23 ; Saito, A 25 ; Sasano, M 4 ; Sato, H 4 ; Scheit, H 23 ; Schindler, F 7 ; Shimada, T 25 ; Shimizu, Y 4 ; Shimoura, S 27 ; Stefan, I 6 ; Storck, S 23 ; Stuhl, L 27 ; Suzuki, H 4 ; Symochko, D 23 ; Takeda, H 4 ; Takeuchi, S 25 ; Tanaka, J 5 ; Togano, Y 33 ; Tomai, T 20 ; Törnqvsit, H T 21 ; Tscheuschner, J 23 ; Uesaka, T 4 ; Wagner, V 23 ; Wimmer, K 27 ; Yamada, H 25 ; Yang, B 1 ; Yang, L 27 ; Yasuda, Y 20 ; Yoneda, K 4 ; Zanetti, L 21 ; Zenihiro, J 34 ; Elidiano, T 3 ; Lenain, C 3 

1  School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
2  Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
3  LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 CAEN Cedex, France 
4  RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
5  Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany 
6  Institut de Physique Nucléaire Orsay, IN2P3-CNRS, 91406 Orsay Cedex, France 
7  Technische Universität München, 85748 Garching, Germany 
8  GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
9  Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain 
10  Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China 
11  KVI-CART, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands 
12  MTA ATOMKI, 4001 Debrecen, Hungary; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
13  Department of Physics, University of York, York YO10 5DD, United Kingdom; Department of Physics, Lund University, 22100 Lund, Sweden 
14  Department of Physics, Rikkyo University, Toshima, Tokyo 172-8501, Japan 
15  Ruder Boskovic Institut (RBI), Zagreb, Croatia; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
16  CEA, Centre de Saclay, IRFU, F-91191 Gif-sur-Yvette, France 
17  MTA ATOMKI, 4001 Debrecen, Hungary 
18  Toho University, Tokyo 143-8540, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
19  GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany; KVI-CART, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands 
20  Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
21  Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
22  Department of Physics, Ehwa Womans University, Seoul, Korea 
23  Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany 
24  Department of Physics, Tohoku University, Miyagi 980-8578, Japan 
25  Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan 
26  Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192, Japan 
27  Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
28  Institut für Kernphysik, Universitát zu Koln, Koln, Germany 
29  Department of Physics, Saitama University, Shimo-Okubo 255, Sakura-ku, Saitama-shi 338-8570, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
30  Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; Department of Physics, University of York, York YO10 5DD, United Kingdom 
31  Institute of Space Sciences, Magurele, Romania 
32  Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France 
33  Department of Physics, Rikkyo University, Toshima, Tokyo 172-8501, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
34  Kyoto University, Kyoto 606-8501, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
Publication year
2020
Publication date
Dec 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/1643/1/012090
ProQuest document ID
2571046116
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.