1. Measurement of the semileptonic branching fractions of the $\mathrm{D^0}$ meson
- Author
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Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Ressing, D., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., and ARGUS Collaboration
- Subjects
annihilation: electron positron ,ARGUS ,DESY DORIS Stor ,approx. 10.6 GeV-cms ,semileptonic decay [D0] ,D*(2010): electroproduction ,(pi): angular distribution ,annihilation [electron positron] ,electron positron: annihilation ,D*(2010): hadronic decay ,D0: branching ratio ,momentum spectrum: (lepton) ,D*(2010) [electroproduction] ,S032.10 ,branching ratio [D0] ,+muon%2B+neutrino%2Fmu+anything%22">D0 --> muon+ neutrino/mu anything ,+D*%282010%29+anything%22">electron positron --> D*(2010) anything ,(lepton) [momentum spectrum] ,D*(2010) [hadronic decay] ,angular distribution: (pi) ,ddc:530 ,D0 [semileptonic decay] ,electron positron [colliding beams] ,hadronic decay [D*(2010)] ,+positron+neutrino%2Fe+anything%22">D0 --> positron neutrino/e anything ,electron positron [annihilation] ,+D0+pi%2B%22">D*(2010) --> D0 pi+ ,semileptonic decay: D0 ,S032.27 ,angular distribution [(pi)] ,electron positron: colliding beams ,hadronic decay: D*(2010) ,D0: semileptonic decay ,electroproduction [D*(2010)] ,(pi) [angular distribution] ,electroproduction: D*(2010) ,colliding beams: electron positron ,colliding beams [electron positron] ,experimental results - Abstract
6 pp. (1996)., Using the ARGUS detector at the e + e − storage ring DORIS II, we have measured the semileptonic branching ratios of the D 0 meson to be Br ( D 0 → e + ν e X ) = (6.9 ± 0.3 ± 0.5) % and Br ( D 0 → μ + ν μ X ) = (6.0 ± 0.7 ± 1.2) %, and the semileptonic branching ratio of the charmed hadron mixture from e + e − annihilation around 10 GeV to be Br ( c → e + ν e X ) = (9.6 ± 0.4 ± 1.1) %.
- Published
- 1996
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