Observation of an alternative χc0(2P) candidate in e+e-→J/ψDD¯

Chilikin, K.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Barberio, E.; Besson, D.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Cho, K.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gillard, R.; Goldenzweig, P.; Haba, J.; Hara, T.; Hayasaka, K.; Hou, W. -S.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jin, Y.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Karyan, G.; Katrenko, P.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Li, L.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Okuno, S.; Olsen, S. L.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Park, H.; Paul, S.; Pestotnik, R.; Piilonen, L. E.; Pulvermacher, C.; Ritter, M.; Sahoo, H.; Sakai, Y.; Salehi, M.; Sandilya, S.; Santelj, L.; Sanuki, T.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Seon, O.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Uno, S.; Usov, Y.; Van Hulse, C.; Varner, G.; Vinokurova, A.; Vossen, A.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Widmann, E.; Won, E.; Yamamoto, H.; Yamashita, Y.; Ye, H.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/PhysRevD.95.112003

Title: Observation of an alternative $χ_{c 0} (2 P)$ candidate in $e^{+} e^{-} \to J / ψ D \bar{D}$

Journal Article · Fri Jun 16 00:00:00 EDT 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.95.112003· OSTI ID:1373836

Chilikin, K.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Barberio, E.; Besson, D.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bondar, A.; Bozek, A.; Bračko, M. more »

We perform a full amplitude analysis of the process e⁺ e^- → J/ψ$$D\bar{D}$$, where D refers to either D⁰ or D⁺. A new charmoniumlike state X*(3860) that decays to$$D\bar{D}$$ is observed with a significance of 6.5σ. Its mass is (3862 $$+26+40\atop{-32-13}$$) MeV=c², and its width is (201 $$+154+88\atop{-67-82}$$) MeV. The J^PC 0⁺⁺ hypothesis is favored over the 2⁺⁺ hypothesis at the level of 2.5σ.

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Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: Belle Collaboration

DOE Contract Number:: AC05-76RL01830

OSTI ID:: 1373836

Report Number(s):: PNNL-SA-127663; PRVDAQ; KA2201020

Journal Information:: Physical Review D, Vol. 95, Issue 11; ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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