EPJ Web Conf.
Volume 262, 2022International Conference on Exotic Atoms and Related Topics - EXA2021
|Number of page(s)||7|
|Published online||27 April 2022|
Summary of the K−pp bound-state observation in E15 and future prospects
1 RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
2 Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan
3 Department of Physics, Osaka University, Osaka 560-0043, Japan
4 Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia V8W 3P6, Canada
5 Department of Physics, Seoul National University, Seoul 151-742, South Korea
6 National Institute of Physics and Nuclear Engineering - IFIN HH, Bucharest, Romania
7 Stefan-Meyer-Institut für subatomare Physik, A-1020 Vienna, Austria
8 Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Torino, Italy
9 Dipartimento di Fisica Generale, Universita’ di Torino, Torino, Italy
10 Laboratori Nazionali di Frascati dell’ INFN, I-00044 Frascati, Italy
11 High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
12 Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
13 Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
14 Laboratory of Physics, Osaka Electro-Communication University, Osaka 572-8530, Japan
15 ASRC, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan
16 Department of Physics, Kyoto University, Kyoto 606-8502, Japan
17 Technische Universität München, D-85748, Garching, Germany
18 Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153-8902, Japan
19 Research Center for Electron Photon Science (ELPH), Tohoku University, Sendai 982-0826, Japan
20 Engineering Science Laboratory, Chubu University, Aichi 487-8501, Japan
21 Centro Ricerche Fermi-Museo Storico della Fisica e Centro studi e ricerche “Enrico Fermi”, 000184 Rome, Italy
22 Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
23 Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan
* e-mail: firstname.lastname@example.org
Published online: 27 April 2022
The possible existence of deeply-bound $\bar K$K¯-nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$K¯N interaction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$K¯N interaction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$K¯NN, having a much deeper binding energy than normal nuclei via inflight (K−, N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$K¯N (Λ(1405)) to $\bar K$K¯NNNN. We will measure the $\bar K$K¯NNN (A = 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.