Measurement of the e+e- -->pi+pi- J/psi cross section via initial-state radiation at Belle

The cross section for e(+)e(-)-->pi(+)pi(-)J/psi between 3.8 and 5.5 GeV/c(2) is measured using a 548 fb(-1) data sample collected on or near the Upsilon(4S) resonance with the Belle detector at KEKB. A peak near 4.25 GeV/c(2), corresponding to the so called Y(4260), is observed. In addition, the...

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Veröffentlicht in:	Physical review letters 2007-11, Vol.99 (18), p.182004-182004, Article 182004
Hauptverfasser:	Yuan, C Z, Shen, C P, Wang, P, McOnie, S, Adachi, I, Aihara, H, Aulchenko, V, Aushev, T, Bahinipati, S, Balagura, V, Barberio, E, Bedny, I, Bitenc, U, Bondar, A, Bozek, A, Bracko, M, Brodzicka, J, Browder, T E, Chang, M-C, Chang, P, Chen, A, Chen, K-F, Chen, W T, Cheon, B G, Chistov, R, Cho, I-S, Choi, Y, Dalseno, J, Danilov, M, Dash, M, Eidelman, S, Fratina, S, Gabyshev, N, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Hokuue, T, Hoshi, Y, Hou, W-S, Hsiung, Y B, Hyun, H J, Iijima, T, Ikado, K, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, Y, Kah, D H, Kaji, H, Kang, J H, Katayama, N, Kawai, H, Kawasaki, T, Kichimi, H, Kim, Y J, Kinoshita, K, Korpar, S, Krizan, P, Krokovny, P, Kumar, R, Kuo, C C, Kuzmin, A, Kwon, Y-J, Lee, S E, Lesiak, T, Lin, S-W, Liu, Y, Liventsev, D, Mandl, F, Marlow, D, Matyja, A, Medvedeva, T, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Mori, T, Nagasaka, Y, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, S L, Ozaki, H, Pakhlov, P, Pakhlova, G, Palka, H, Park, H, Park, K S, Peak, L S, Piilonen, L E
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Sprache:	eng
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