Observation of an alternative $\chi_{c0}(2P)$ candidate in $e^+ e^- \rightarrow J/\psi D \bar{D}$
High Energy Physics - Experiment
2017-06-20 v3
Abstract
We perform a full amplitude analysis of the process , where refers to either or . A new charmoniumlike state that decays to is observed with a significance of . Its mass is () MeV/ and width is () MeV. The hypothesis is favored over the hypothesis at the level of . The analysis is based on the 980 data sample collected by the Belle detector at the asymmetric-energy collider KEKB.
Keywords
Cite
@article{arxiv.1704.01872,
title = {Observation of an alternative $\chi_{c0}(2P)$ candidate in $e^+ e^- \rightarrow J/\psi D \bar{D}$},
author = {Belle Collaboration and K. Chilikin and I. Adachi and H. Aihara and S. Al Said and D. M. Asner and V. Aulchenko and R. Ayad and V. Babu and I. Badhrees and A. M. Bakich and V. Bansal and E. Barberio and D. Besson and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar and A. Bozek and M. Bračko and T. E. Browder and D. Červenkov and V. Chekelian and A. Chen and B. G. Cheon and K. Cho and Y. Choi and D. Cinabro and N. Dash and S. Di Carlo and Z. Doležal and Z. Drásal and D. Dutta and S. Eidelman and H. Farhat and J. E. Fast and T. Ferber and B. G. Fulsom and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and P. Goldenzweig and J. Haba and T. Hara and K. Hayasaka and W. -S. Hou and K. Inami and A. Ishikawa and R. Itoh and Y. Iwasaki and W. W. Jacobs and I. Jaegle and H. B. Jeon and Y. Jin and D. Joffe and K. K. Joo and T. Julius and K. H. Kang and G. Karyan and P. Katrenko and D. Y. Kim and H. J. Kim and J. B. Kim and K. T. Kim and M. J. Kim and S. H. Kim and Y. J. Kim and K. Kinoshita and P. Kodyš and S. Korpar and D. Kotchetkov and P. Križan and P. Krokovny and T. Kuhr and R. Kulasiri and A. Kuzmin and Y. -J. Kwon and J. S. Lange and L. Li and L. Li Gioi and J. Libby and D. Liventsev and M. Lubej and T. Luo and M. Masuda and T. Matsuda and D. Matvienko and K. Miyabayashi and H. Miyata and R. Mizuk and G. B. Mohanty and H. K. Moon and T. Mori and R. Mussa and E. Nakano and M. Nakao and T. Nanut and K. J. Nath and Z. Natkaniec and M. Nayak and M. Niiyama and N. K. Nisar and S. Nishida and S. Ogawa and S. Okuno and S. L. Olsen and H. Ono and P. Pakhlov and G. Pakhlova and B. Pal and S. Pardi and H. Park and S. Paul and R. Pestotnik and L. E. Piilonen and C. Pulvermacher and M. Ritter and H. Sahoo and Y. Sakai and M. Salehi and S. Sandilya and L. Santelj and T. Sanuki and O. Schneider and G. Schnell and C. Schwanda and Y. Seino and K. Senyo and O. Seon and M. E. Sevior and V. Shebalin and C. P. Shen and T. -A. Shibata and J. -G. Shiu and A. Sokolov and E. Solovieva and M. Starič and T. Sumiyoshi and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and S. Uehara and T. Uglov and S. Uno and Y. Usov and C. Van Hulse and G. Varner and A. Vinokurova and A. Vossen and C. H. Wang and M. -Z. Wang and P. Wang and M. Watanabe and Y. Watanabe and E. Widmann and E. Won and H. Yamamoto and Y. Yamashita and H. Ye and C. Z. Yuan and Y. Yusa and Z. P. Zhang and V. Zhilich and V. Zhulanov and A. Zupanc},
journal= {arXiv preprint arXiv:1704.01872},
year = {2017}
}
Comments
17 pages, 11 figures