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Observation of chi(c2) production in B meson decay |
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| Authors: | Abe K Abe K Abe T Adachi I Aihara H Akatsu M Asano Y Aso T Aulchenko V Aushev T Bakich A M Ban Y Banas E Behari S Behera P K Bondar A Bozek A Bracko M Browder T E Casey B C K Chang P Chao Y Cheon B G Chistov R Choi S-K Choi Y Dong L Y Dragic J Drutskoy A Eidelman S Eiges V Everton C W Fang F Fujii H Fukunaga C Fukushima M Gabyshev N Garmash A Gershon T Golob B Gordon A Gotow K Guo R Haba J Hamasaki H Hanagaki K Handa F Hara K Hara T Hastings N C Hayashii H Hazumi M Heenan E M Higuchi I Higuchi T Hojo T Hokuue T Hoshi Y Hoshina K Hou S R Hou W-S Huang H-C Igarashi Y Iijima T Ikeda H Inami K |
| Affiliation: | High Energy Accelerator Research Organization (KEK), Tsukuba. |
| Abstract: | We report the first observation of chi(c2) production in B meson decays. We find an inclusive B-->chi(c2)X branching fraction of (1.80(+0.23)(-0.28)+/-0.26) x 10(-3). The data set, collected with the Belle detector at the KEKB e(+)e(-) collider, consists of 31.9 x 10(6) BB events. We also present branching fractions and momentum spectra for both chi(c1) and chi(c2) production. |
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