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First observation and Dalitz analysis of the D0-->K(0)Setapi(0) decay.
Rubin, P; Eisenstein, B I; Gollin, G D; Karliner, I; Lowrey, N; Naik, P; Sedlack, C; Selen, M; Thaler, J J; Williams, J; Edwards, K W; Besson, D; Gao, K Y; Gong, D T; Kubota, Y; Li, S Z; Poling, R; Scott, A W; Smith, A; Stepaniak, C J; Urheim, J; Metreveli, Z; Seth, K K; Tomaradze, A; Zweber, P; Ernst, J; Arms, K; Eckhart, E; Gan, K K; Severini, H; Skubic, P; Asner, D M; Dytman, S A; Mehrabyan, S; Mueller, J A; Savinov, V; Li, Z; Lopez, A; Mendez, H; Ramirez, J; Huang, G S; Miller, D H; Pavlunin, V; Sanghi, B; Shibata, E I; Shipsey, I P J; Adams, G S; Chasse, M; Cummings, J P; Danko, I.
Affiliation
  • Rubin P; George Mason University, Fairfax, Virginia 22030, USA.
Phys Rev Lett ; 93(11): 111801, 2004 Sep 10.
Article in En | MEDLINE | ID: mdl-15447329
ABSTRACT
Using 9.0 fb(-1) of integrated luminosity in e(+)e(-) collisions near the Upsilon(4S) mass collected with the CLEO II.V detector we report the first observation of the decay D0-->K(0)(S)etapi(0). We measure the ratio of branching fractions, BR(D0-->K(0)(S)etapi(0))BR / (D0-->K(0)(S)pi(0))=0.46+/-0.07+/-0.06. We perform a Dalitz analysis of 155 selected D0-->K(0)(S)etapi(0) candidates and find leading contributions from a(0)(980)K(0)(S) and K(*)(892)eta intermediate states.
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2004 Type: Article Affiliation country: United States
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2004 Type: Article Affiliation country: United States