Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility
Abstract
We present prospects for the pentaquark baryon search using the newly constructed LEPS2 facility at SPring-8. The LEPS2 detector system features significant improvements in acceptance for multi-particle final states compared to previous experiments. Our search employs two complementary strategies: direct production in the reaction using a liquid deuterium target with a photon beam up to 2.4 GeV, and -associated production using a liquid hydrogen target with a photon beam up to 2.9 GeV. The extended acceptance covers both forward and large angle regions, effectively spanning the kinematic regions explored by previous LEPS and CLAS experiments. The large acceptance and improved resolution of LEPS2, combined with these complementary approaches, provide unprecedented sensitivity for establishing the existence of the or placing definitive upper limits on its production.
Cite
@article{arxiv.2503.02528,
title = {Prospects for Pentaquark Baryon Search with the Upgraded LEPS2 Facility},
author = {T. Nakano and S. Ajimura and Y. Asano and S. Dat'e and T. Hashimoto and A. Higashi and T. Hotta and T. Ishikawa and H. Katsuragawa and R. Kobayakawa and H. Kohri and K. Mizutani and Y. Ohashi and H. Ohkuma and S. Y. Ryu and S. Suzuki and S. Tanaka and K. Watanabe and B. Yan and T. Yorita and M. Yosoi and G. Kojima and M. Miyabe and N. Muramatsu and H. Ohnishi and Y. Sada and H. Shimizu and A. O. Tokiyasu and M. Niiyama and K. Nishi and J. K. Ahn and Y. Ma and T. H. Nam and C. Rangacharyulu and M. Sumihama and C. Yoshida},
journal= {arXiv preprint arXiv:2503.02528},
year = {2025}
}
Comments
to be published on Acta Physica Polonica B 56 (2025)