Measurement Of Absolute Hadronic Branching Fractions Of D Mesons And E(+)E(-)-> D(D)Over-Bar Cross Sections At E-C.M.=3773 Mev

Q. He,H. Muramatsu, C. S. Park, W. Park,E. H. Thorndike,T. E. Coan,Y. S. Gao, F. Liu,M. Artuso, C. Boulahouache,S. Blusk, J. Butt,E. Dambasuren,O. Dorjkhaidav, J. Li,N. Menaa,R. Mountain,R. Nandakumar, K. Randrianarivony, R. Redjimi,R. Sia, T. Skwarnicki,S. Stone,J. Wang, K. Zhang, S. Csorna,G. Bonvicini,D. Cinabro,M. Dubrovin,R. Briere,G. Chen,J. Chen,T. Ferguson,G. Tatishvili,H. Vogel,M. Watkins,J. Rosner,N. Adam, J. Alexander,K. Berkelman,D. Cassel,V. Crede,J. Duboscq,K. Ecklund,R. Ehrlich,L. Fields, L. Gibbons,B. Gittelman,R. Gray, S. Gray,D. Hartill, B. Heltsley,D. Hertz,L. Hsu,C. Jones,J. Kandaswamy,D. Kreinick,V. Kuznetsov,H. Mahlke-Krüger,T. Meyer,P. Onyisi,J. Patterson, D. Peterson,E. Phillips,J. Pivarski,D. Riley, A. Ryd, A. Sadoff,H. Schwarthoff, X. Shi,M. Shepherd,S. Stroiney, W. Sun,D. Urner,K. Weaver,T. Wilksen,M. Weinberger,S. Athar, P. Avery,L. Breva-Newell, R. Patel,V. Potlia,H. Stoeck, J. Yelton,P. Rubin,C. Cawlfield,B. Eisenstein, G. Gollin, I. Karliner,D. Kim,N. Lowrey,P. Naik, C. Sedlack,M. Selen,J. Williams,J. Wiss, K. Edwards, D. Besson,T. Pedlar,D. Cronin-Hennessy,K. Gao,D. Gong,J. Hietala,Y. Kubota,T. Klein,B. Lang, S. Li,R. Poling,A. Scott,A. Smith,S. Dobbs,Z. Metreveli,K. Seth, A. Tomaradze,P. Zweber, J. Ernst,A. Mahmood, H. Severini,D. Asner,S. Dytman,W. Love,S. Mehrabyan,J. Mueller, V. Savinov, Z. Li,A. Lopez,H. Mendez,J. Ramirez, G. Huang,D. Miller, V. Pavlunin,B. Sanghi, I. Shipsey,G. Adams,M. Chasse,M. Cravey, J. Cummings,I. Danko,J. Napolitano

PHYSICAL REVIEW LETTERS（2005）

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摘要

Using 55.8 pb(-1) of e(+)e(-) collisions recorded at the psi(3770) resonance with the CLEO-c detector at CESR, we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D-0 and six D+ modes, we obtain reference branching fractions B(D-0-> K(-)pi(+))=(3.91 +/- 0.08 +/- 0.09)% and B(D+-> K(-)pi(+)pi(+))=(9.5 +/- 0.2 +/- 0.3)%, where the uncertainties are statistical and systematic, respectively. Final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. Using a determination of the integrated luminosity, we also extract the cross sections sigma(e(+)e(-)-> D-0(D) over bar (0))=(3.60 +/- 0.07(-0.05)(+0.07)) nb and sigma(e(+)e(-) -> D+D-)=(2.79 +/- 0.07(-0.04)(+0.10)) nb.

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