Spectroscopy of η′-nucleus bound states at GSI-SIS
1 Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
2 Nishina Center for Accelerator-Based Science, RIKEN, Saitama, 351-0198, Japan
3 GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
4 Department of Physics, The University of Tokyo, Tokyo, 113-0033, Japan
5 Department of Physics, Nara Women’s University, Nara 630-8506, Japan
6 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, 606-8502, Japan
7 II. Physikalisches Institut, Universität Gießen, D-35392 Gießen, Germany
8 Stefan Meyer Institut für subatomare Physik, 1090 Vienna, Austria
a e-mail: firstname.lastname@example.org
The η′ meson mass may be reduced due to partial restoration of chiral symmetry. If this is the case, an η′-nucleus system may form a nuclear bound state.We plan to carry out a missing-mass spectroscopy experiment with the 12C(p,d) reaction at GSI-SIS. Peak structures corresponding to such a bound state may be observed even in an inclusive measurement, if the decay width is narrow enough.
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