Phys. Rev. D
76,
112001
(2007)
[30 pages]
Measurement of absolute hadronic branching fractions of D mesons and e+e-→DD̅ cross sections at the ψ(3770)
S. Dobbs et al. CLEO Collaboration
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S. Dobbs1, Z. Metreveli1, K. K. Seth1, A. Tomaradze1, K. M. Ecklund2, W. Love3, V. Savinov3, A. Lopez4, S. Mehrabyan4, H. Mendez4, J. Ramirez4, G. S. Huang5, D. H. Miller5, V. Pavlunin5, B. Sanghi5, I. P. J. Shipsey5, B. Xin5, G. S. Adams6, M. Anderson6, J. P. Cummings6, I. Danko6, D. Hu6, B. Moziak6, J. Napolitano6, Q. He7, J. Insler7, H. Muramatsu7, C. S. Park7, E. H. Thorndike7, F. Yang7, M. Artuso8, S. Blusk8, S. Khalil8, J. Li8, N. Menaa8, R. Mountain8, S. Nisar8, K. Randrianarivony8, R. Sia8, T. Skwarnicki8, S. Stone8, J. C. Wang8, G. Bonvicini9, D. Cinabro9, M. Dubrovin9, A. Lincoln9, D. M. Asner10, K. W. Edwards10, P. Naik10, R. A. Briere11, T. Ferguson11, G. Tatishvili11, H. Vogel11, M. E. Watkins11, J. L. Rosner12, N. E. Adam13, J. P. Alexander13, K. Berkelman13, D. G. Cassel13, J. E. Duboscq13, R. Ehrlich13, L. Fields13, L. Gibbons13, R. Gray13, S. W. Gray13, D. L. Hartill13, B. K. Heltsley13, D. Hertz13, C. D. Jones13, J. Kandaswamy13, D. L. Kreinick13, V. E. Kuznetsov13, H. Mahlke-Krüger13, D. Mohapatra13, P. U. E. Onyisi13, J. R. Patterson13, D. Peterson13, J. Pivarski13, D. Riley13, A. Ryd13, A. J. Sadoff13, H. Schwarthoff13, X. Shi13, S. Stroiney13, W. M. Sun13, T. Wilksen13, S. B. Athar14, R. Patel14, J. Yelton14, P. Rubin15, C. Cawlfield16, B. I. Eisenstein16, I. Karliner16, D. Kim16, N. Lowrey16, M. Selen16, E. J. White16, J. Wiss16, R. E. Mitchell17, M. R. Shepherd17, D. Besson18, T. K. Pedlar19, D. Cronin-Hennessy20, K. Y. Gao20, J. Hietala20, Y. Kubota20, T. Klein20, B. W. Lang20, R. Poling20, A. W. Scott20, A. Smith20, and P. Zweber20 (CLEO Collaboration)
1Northwestern University, Evanston, Illinois 60208, USA
2State University of New York at Buffalo, Buffalo, New York 14260, USA
3University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
4University of Puerto Rico, Mayaguez, Puerto Rico 00681
5Purdue University, West Lafayette, Indiana 47907, USA
6Rensselaer Polytechnic Institute, Troy, New York 12180, USA
7University of Rochester, Rochester, New York 14627, USA
8Syracuse University, Syracuse, New York 13244, USA
9Wayne State University, Detroit, Michigan 48202, USA
10Carleton University, Ottawa, Ontario, Canada K1S 5B6
11Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
12Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
13Cornell University, Ithaca, New York 14853, USA
14University of Florida, Gainesville, Florida 32611, USA
15George Mason University, Fairfax, Virginia 22030, USA
16University of Illinois, Urbana-Champaign, Illinois 61801, USA
17Indiana University, Bloomington, Indiana 47405, USA
18University of Kansas, Lawrence, Kansas 66045, USA
19Luther College, Decorah, Iowa 52101, USA
20University of Minnesota, Minneapolis, Minnesota 55455, USA
Received 13 September 2007; published 28 December 2007
Using 281 pb-1 of e+e- collisions recorded at the ψ(3770) resonance with the CLEO-c detector at CESR (Cornell Electron Storage Ring), we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D0 and six D+ modes, we obtain reference branching fractions B(D0→K-π+)=(3.891±0.035±0.059±0.035)% and B(D+→K-π+π+)=(9.14±0.10±0.16±0.07)%, where the first uncertainty is statistical, the second is all systematic errors other than final-state radiation (FSR), and the third is the systematic uncertainty due to FSR. We include FSR in these branching fractions by allowing for additional unobserved photons in the final state. Using an independent determination of the integrated luminosity, we also extract the cross sections σ(e+e-→D0D̅ 0)=(3.66±0.03±0.06) nb and σ(e+e-→D+D-)=(2.91±0.03±0.05) nb at a center-of-mass energy, Ecm=3774±1 MeV.
© 2007 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.112001
DOI:
10.1103/PhysRevD.76.112001
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