Study of hadronic five-body decays of charmed mesons involving K0

Link, J. M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Göbel, C.; Machado, A. A.; Magnin, J.; Massafferri, A.; Miranda, J. M. De; Pepe, I. M.; Polycarpo, E.; Reis, A. C. dos; Carrillo, S.; Casimiro, E.; Cuautle, E.; Sánchez-Hernández, A.; Uribe, C.; Vázquez, F.; Agostino, L.; Cinquini, L.; Cumalat, J. P.; Jacobs, James A.; O’Reilly, B.; Segoni, I.; Wahl, Michael; Butler, J. N.; Cheung, H. W. K.; Chiodini, G.; Gaines, I.; Garbincius, P. H.; Garren, L.; Gottschalk, E.; Kasper, P.; Kreymer, A.; Kutschke, R.; Wang, M.; Benussi, L.; Bertani, M.; Bianco, S.; Fabbri, F.; Zallo, A.; Reyes, M.; Cawlfield, C.; Kim, D. Y.; Rahimi, A. M.; Wiss, J.; Gardner, R.; Kryemadhi, A.; Chung, Youngjin; Kang, J. S.; Ko, B. R.; Kwak, J. W.; Lee, K. B.; Cho, K.; Park, H.; Alimonti, G.; Barberis, S.; Boschini, M.; Cerutti, Agustín Cobos; D’Angelo, P.; DiCorato, M.; Dini, P.; Edera, L.; Erba, S.; Giammarchi, M.; Inzani, P.; Leveraro, F.; Malvezzi, S.; Menasce, D.; Mezzadri, M.; Moroni, L.; Pedrini, D.; Pontoglio, C.; Prelz, F.; Rovere, M.; Sala, S.; Davenport, T. F.; Arena, Vincenzo; Boca, G.; Bonomi, G.; Gianini, G.; Liguori, G.; Merlo, M. M.; Pantea, D.; Pegna, D. Lopes; Ratti, S. P.; Riccardi, C.; Vitulo, P.; Hernandez, H.; López, A.; Luiggi, E.; Méndez, H.; Paris, A.; Vargas, J. E. Ramirez; Zhang, Y.; Wilson, J. R.; Handler, T.; Mitchell, R. E.; Engh, D.

doi:10.1016/j.physletb.2003.11.078

Cited by 3 publications

(1 citation statement)

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“…Theoretical discussion of many-body charm decays has suggested a "vector-dominance model" in which a charmed meson emits a W ± which hadronizes into a charged vector, axialvector, or pseudoscalar meson [7]. Studies of five-body charm decays by FO-CUS have provided evidence for this model with five-body decays of the D 0 , D + , and D + s being dominated by quasi-two-body decays involving the a 1 (1260) ± [8,9]. Our result for Γ(D 0 → 6π)/Γ(D 0 → K5π) may be qualitatively explained by the hypothesis that six-body decays of the D 0 proceed primarily through quasi-two-body decays involving an a 1 (1260) + .…”

Section: Discussionmentioning

confidence: 99%

Measurements of six-body hadronic decays of the D0 charmed meson

Link¹,

Yager²,

Anjos³

et al. 2004

Physics Letters B

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Using data collected by the FOCUS experiment at Fermilab, we report the discovery of the decay modes D 0 → K − π + π + π + π − π − and D 0 → π + π + π + π − π − π − . With a sample of 48 ± 10 reconstructed D 0 → K − π + π + π + π − π − decays and 149 ± 17 reconstructed D 0 → π + π + π + π − π − π − decays, we measure the following relative branching ratios:The first errors are statistical and the second are systematic. The branching fraction of the Cabibbo suppressed six-body decay mode is measured to be a factor of two higher than the branching fraction of the Cabibbo favored six-body decay mode.  2004 Published by Elsevier B.V.

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Section: Discussionmentioning

confidence: 99%