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  • Search for X ( 3872 ) and X...
    Bhardwaj, V.; Jia, S.; Adachi, I.; Asner, D. M.; Aushev, T.; Babu, V.; Beleño, C.; Berger, M.; Biswal, J.; Bonvicini, G.; Browder, T. E.; Campajola, M.; Cao, L.; Cho, H. E.; Choi, Y.; Choudhury, S.; Cunliffe, S.; Doležal, Z.; Dong, T. V.; Fast, J. E.; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Haba, J.; Hara, T.; Hayasaka, K.; Hou, W.-S.; Hsu, C.-L.; Inami, K.; Ishikawa, A.; Itoh, R.; Jacobs, W. W.; Jin, Y.; Julius, T.; Kim, D. Y.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kulasiri, R.; Lalwani, K.; Lange, J. S.; Lee, J. K.; Lee, J. Y.; Li, L. K.; Liventsev, D.; Lu, P.-C.; MacQueen, C.; Matsuda, T.; Matvienko, D.; Miyabayashi, K.; Mori, T.; Mussa, R.; Nakao, M.; Nath, K. J.; Niiyama, M.; Ogawa, S.; Ono, H.; Onuki, Y.; Pal, B.; Pardi, S.; Paul, S.; Pedlar, T. K.; Prencipe, E.; Resmi, P. K.; Sandilya, S.; Santelj, L.; Savinov, V.; Schneider, O.; Schwanda, C.; Seino, Y.; Senyo, K.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Trabelsi, K.; Uehara, S.; Uglov, T.; Uno, S.; Urquijo, P.; Van Tonder, R.; Varner, G.; Wang, C. H.; Wang, X. L.; Watanabe, M.; Won, E.; Ye, H.; Yin, J. H.; Zhang, J.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

    Physical review. D, 06/2019, Volume: 99, Issue: 11
    Journal Article

    We report a search for X ( 3872 ) and X ( 3915 ) in B+ → χc1π0K+ decays. We set an upper limit of B ( B+ → X ( 3872 ) K+ ) × B ( X ( 3872 ) → χc1π0 ) <8.1×10-6 and B ( B+ → X ( 3915 ) K+ ) × B ( X ( 3915 ) → χc1π0 ) <3.8×10-5 at 90% confidence level. We also measure B ( X ( 3872 ) → χc1π0 ) / B ( X ( 3872 ) → J / ψπ+π- ) <0.97 at 90% confidence level. The results reported here are obtained from 772×106 B B ¯ events collected at the Υ ( 4S ) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.