Experimental Study of $^{4}n$ by Directly Detecting the Decay Neutrons

S.W. Huang , Z.H. Yang , F.M. Marqués (1) , N.L. Achouri (1) , D.S. Ahn , T. Aumann , H. Baba , D. Beaumel (2) , M. Böhmer , K. Boretzky , M. Caamaño , S. Chen , N. Chiga , M.L. Cortés , D. Cortina , P. Doornenbal , C.A. Douma , F. Dufter , J. Feng , B. Fernández-Domínguez , Z. Elekes , U. Forsberg , T. Fujino , N. Fukuda , I. Gašparić , Z. Ge , R. Gernhäuser , J.M. Gheller (3) , J. Gibelin (1) , A. Gillibert (3) , Z. Halász , T. Harada , M.N. Harakeh , A. Hirayama , N. Inabe , T. Isobe , J. Kahlbow , N. Kalantar-Nayestanaki , D. Kim , S. Kim , S. Kiyotake , T. Kobayashi , Y. Kondo , P. Koseoglou , Y. Kubota , I. Kuti , C. Lehr , C. Lenain (1) , P.J. Li , Y. Liu , Y. Maeda , S. Masuoka , M. Matsumoto , A. Matta (1) , J. Mayer , H. Miki , M. Miwa , B. Monteagudo (1) , I. Murray , T. Nakamura , A. Obertelli , N.A. Orr (1) , H. Otsu , V. Panin , S. Park , M. Parlog (1) , S. Paschalis , M. Potlog , S. Reichert , A. Revel (4) , D. Rossi , A. Saito , M. Sasano , H. Sato , H. Scheit , F. Schindler , T. Shimada , Y. Shimizu , S. Shimoura , H. Simon , I. Stefan (2) , S. Storck , L. Stuhl , H. Suzuki , D. Symochko , H. Takeda , S. Takeuchi , J. Tanaka , Y. Togano , T. Tomai , H.T. Törnqvist , E. Tronchin (1) , J. Tscheuschner , T. Uesaka , V. Wagner , K. Wimmer , H. Yamada , B. Yang , L. Yang , Y. Yasuda , K. Yoneda , L. Zanetti , J. Zenihiro

1 LPCC - Laboratoire de physique corpusculaire de Caen
2 IPNO - Institut de Physique Nucléaire d'Orsay
3 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
4 GANIL - Grand Accélérateur National d'Ions Lourds

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 $^{8}$He(p, 2p)$^{7}$H{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.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

S.W. Huang, Z.H. Yang, F.M. Marqués, N.L. Achouri, D.S. Ahn, et al.. Experimental Study of $^{4}n$ by Directly Detecting the Decay Neutrons. 8th Asia-Pacific conference on Few-Body problems in Physics, Mar 2021, Kanazawa, Japan. pp.102, ⟨10.1007/s00601-021-01691-4⟩. ⟨hal-03411333⟩