Production of new charmoniumlike states in e+e-→J/ψD(*) D̄(*) at s 10.6GeV

P. Pakhlov, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, Y. Chao, A. Chen, K. F. ChenW. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. W. Lin, Y. Liu, D. Liventsev, F. Mandl, A. Matyja, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, G. Pakhlova, H. Palka, C. W. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. G. Shiu, J. B. Singh, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, C. Z. Yuan, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc, O. Zyukova

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Abstract

We report a study of the processes e+e-→J/ψD(*)D̄(*). In J/ψD*D̄* we observe a significant enhancement in the D*D̄* invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156-20+25±15)MeV/c2 and Γ=(139-61+111±21)MeV. We also report a new measurement of the X(3940) mass and width: M=(3942-6+7±6) MeV/c2 and Γ=(37-15+26±8)MeV. The analysis is based on a 693fb-1 data sample recorded near the Υ(4S) resonance by the Belle detector at the KEKB asymmetric-energy collider.

Original languageEnglish
Article number202001
JournalPhysical review letters
Volume100
Issue number20
DOIs
Publication statusPublished - 2008 May 19

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Pakhlov, P., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Aziz, T., Bakich, A. M., Balagura, V., Barberio, E., Bedny, I., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chao, Y., Chen, A., ... Zyukova, O. (2008). Production of new charmoniumlike states in e+e-→J/ψD(*) D̄(*) at s 10.6GeV. Physical review letters, 100(20), [202001]. https://doi.org/10.1103/PhysRevLett.100.202001