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Observation of the psi(4415)-->DD2*(2460) decay using initial-state radiation |
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| Authors: | Pakhlova G Adachi I Aihara H Arinstein K Aulchenko V Aushev T Bakich A M Balagura V Barberio E Bedny I Belous K Bitenc U Bondar A Bracko M Brodzicka J Browder T E Chen A Chen W T Cheon B G Chiang C-C Chistov R Cho I-S Choi Y Dalseno J Danilov M Dash M Drutskoy A Eidelman S Epifanov D Gabyshev N Golob B Ha H Haba J Hayasaka K Hazumi M Heffernan D Hoshi Y Hou W-S Hsiung Y B Hyun H J Inami K Ishikawa A Ishino H Itoh R Iwasaki M Iwasaki Y Joshi N J Kah D H Kang J H Kawasaki T Kibayashi A Kichimi H Kim H J Kim H O Kim Y J Kinoshita K Korpar S Krizan P Krokovny P Kumar R Kuo C C Kuzmin A Kwon Y-J |
| Institution: | Institute for Theoretical and Experimental Physics, Moscow. |
| Abstract: | We report measurements of the exclusive cross section for e(+)e(-)-->D(0)D(-)pi(+) over the center-of-mass energy range 4.0 GeV to 5.0 GeV with initial-state radiation and the first observation of the decay psi(4415)-->D(0)D(-)pi(+). From a study of the resonant substructure in psi(4415) decay we conclude that the psi(4415)-->D(0)D(-)pi(+) decay is dominated by psi(4415)-->DD(2)(*)(2460). We obtain B(psi(4415)-->D(0)D(-)pi(nonresonant)(+))/B(psi(4415)-->DD(2)(*)(2460)-->D(0)D(-)pi(+))<0.22 at 90% C.L. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 673 fb(-1). |
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