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Evidence for <i>X</i>(3872) → <i>J</i>/Ψπ<SUP>+</SUP>π<SUP>-</SUP> Produced in Single-Tag Two-Photon Interactionsopen access
- Authors
- Teramoto, Y.; Uehara, S.; Masuda, M.; Adachi, I; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V; Behera, P.; Beleno, C.; Bennett, J.; Bhardwaj, V; Bhuyan, B.; Bilka, T.; Biswal, J.; Bonvicini, G.; Bozek, A.; Browder, T. E.; Campajola, M.; Chang, M-C; Chang, P.; Chekelian, V; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Cho, S-J; Choi, S-K; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; De Nardo, G.; Di Capua, F.; Dolezal, Z.; Dong, T., V; Eidelman, S.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Greenwald, D.; Hadjivasiliou, C.; Hara, T.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Villanueva, M. Hernandez; Hou, W-S; Hsu, C-L; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jang, E-J; Jia, S.; Jin, Y.; Joo, C. W.; Joo, K. K.; Kahn, J.; Kaliyar, A. B.; Kang, K. H.; Karyan, G.; Kato, Y.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, B. H.; Kim, D. Y.; Kim, S. H.; Kim, Y-K; Kimmel, T. D.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kotchetkov, D.; Krizan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kumar, R.; Kumara, K.; Kuzmin, A.; Kwon, Y-J; Lalwani, K.; Lange, J. S.; Lee, I. S.; Lee, S. C.; Lewis, P.; Li, L. K.; Li, Y. B.; Li Gioi, L.; Libby, J.; Lieret, K.; Liptak, Z.; Liventsev, D.; Luo, T.; MacQueen, C.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mohanty, G. B.; Mohanty, S.; Moon, T. J.; Mori, T.; Mrvar, M.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Natochii, A.; Nayak, M.; Nisar, N. K.; Nishida, S.; Ogawa, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, H.; Park, S-H; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Popov, V; Prencipe, E.; Prim, M. T.; Ritter, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sakai, Y.; Sandilya, S.; Sangal, A.; Santelj, L.; Sanuki, T.; Savinov, V; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shebalin, V; Shiu, J-G; Singh, J. B.; Solovieva, E.; Stottler, Z. S.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Waheed, E.; Wang, C. H.; Wang, E.; Wang, M-Z; Wang, P.; Wang, X. L.; Watanabe, M.; Won, E.; Xu, X.; Yabsley, B. D.; Yang, S. B.; Ye, H.; Yelton, J.; Yin, J. H.; Zhang, Z. P.; Zhilich, V; Zhukova, V; Zhulanov, V
- Issue Date
- Mar-2021
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.126, no.12
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 126
- Number
- 12
- ISSN
- 0031-9007
1079-7114
- Abstract
- We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e(+) e(-) -> e(+)e(-) J/Psi pi(+)pi(-), using 825 fb(-1) of data collected by the Belle detector operated at the KEKB e(+) e(-) - collider. We observe three X(3872) candidates, where the expected background is 0.11 +/- 0.10 events, with a significance of 3.2 sigma. We obtain an estimated value for (Gamma) over tilde (gamma gamma) B(x(3872) -> j/Psi pi(+)pi(-)) assuming the Q(2) dependence predicted by a c (c) over bar meson model, where -Q(2) is the invariant mass squared of the virtual photon. No X(3915) -> J/Psi pi(+)pi(-) candidates are found.
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