https://doi.org/10.1051/epjconf/201613002010
Search for η′ mesic nuclei by missing-mass spectroscopy of the 12C(p,d) reaction
1 GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
2 The University of Tokyo, Tokyo, Japan
3 RCNP, Osaka University, Osaka, Japan
4 Universidade de Santiago de Compostela, Santiago de Compostela, Spain
5 Universitä Giessen, Giessen, Germany
6 Kyoto University, Kyoto, Japan
7 KVI-CART, University of Groningen, Groningen, the Netherlands
8 Beihang University, Beijing, China
9 Nara Women’s University, Nara, Japan
10 KEK, Ibaraki, Japan
11 Tottori University, Tottori, Japan
12 RIKEN Nishina Center, Saitama, Japan
13 Tokyo Metropolitan University, Tokyo, Japan
14 Saint Mary’s University, Nova Scotia, Canada
15 Comenius University Bratislava, Bratislava, Slovakia
16 Stefan-Meyer-Institut für subatomare Physik, Vienna, Austria
17 Niigata University, Niigata, Japan
* e-mail: y.tanaka@gsi.de
Published online: 29 November 2016
We performed a missing-mass spectroscopy experiment of the 12C(p, d) reaction at 2.5 GeV proton energy in order to search for η′ mesic nuclei. An excitation-energy spectrum of 11C was obtained around the η′ production threshold. As no significant peak structure was observed in the spectrum, upper limits of the formation cross section of η′ mesic nuclei have been determined. Preliminary results of the experiment as well as future prospects are given.
© The Authors, published by EDP Sciences, 2016
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.
