Study of Ωc0 and Ωc* 0 baryons at Belle

E. Solovieva, R. Chistov, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, U. Bitenc, A. Bondar, M. Bračko, J. Brodzicka, T. E. Browder, P. Chang, A. Chen, B. G. Cheon, I. S. Cho, S. K. Choi, Y. Choi, J. DalsenoM. Danilov, M. Dash, S. Eidelman, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, C. Liu, D. Liventsev, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, Y. Nagasaka, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, P. Pakhlov, G. Pakhlova, H. Palka, H. K. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, J. G. Shiu, S. Stanič, M. Starič, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

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Abstract

We report results from a study of the charmed double strange baryons Ωc0 and Ωc* 0 at Belle. The Ωc0 is reconstructed using the Ωc0 → Ω- π+ decay mode, and its mass is measured to be (2693.6 ± 0.3-1.5+1.8)   MeV / c2. The Ωc* 0 baryon is reconstructed in the Ωc0 γ mode. The mass difference MΩc* 0 - MΩc0 is measured to be (70.7 ± 0.9-0.9+0.1)   MeV / c2. The analysis is performed using 673 fb-1 of data on and near the Υ{hooked} (4 S) collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume672
Issue number1
DOIs
Publication statusPublished - Feb 9 2009

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Solovieva, E., Chistov, R., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Bakich, A. M., Balagura, V., Bitenc, U., Bondar, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, P., Chen, A., Cheon, B. G., Cho, I. S., Choi, S. K., Choi, Y., ... Zyukova, O. (2009). Study of Ωc0 and Ωc* 0 baryons at Belle. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 672(1), 1-5. https://doi.org/10.1016/j.physletb.2008.12.062