Analysis of the decay mode [formula omitted]

• Published in: Physics letters. B 1993-06, Vol.307 (1), p.262-268
• Main Authors: Frabetti, P.L., Grim, G.P., Paolone, V.S., Yager, P.M., Bogart, C.W., Cheung, H.W.K., Culy, S., Cumalat, J.P., Dallapicola, C., Ginkel, J.F., Greene, S.V., Johns, W.E., Nehring, M.S., Butler, J.N., Cihangir, S., Gaines, I., Garbincius, P.H., Garren, L., Gourlay, S., Harding, D.J., Kasper, P., Kreymer, A., Lebrun, P., Mendez, H., Shukla, S., Bianco, S., Fabbri, F.L., Sarwar, S., Spallone, A., Zallo, A., Culbertson, R., Gardner, R.W., Greene, R., Jaross, G., Lingel, K., Wiss, J., Cheon, B.G., Kang, J.S., Kim, K.Y., Alimonti, G., Bellini, G., Caccianiga, B., Cinquini, L., Di Corato, M., Giammarchi, M., Inzani, P., Leveraro, F., Malvezzi, S., Menasce, D., Meroni, E., Moroni, L., Pedrini, D., Perasso, L., Sala, S., Torretta, D., Vittone, M., Davenport, F., Filasetta, J.F., Buchholz, D., Claes, D., Gobbi, B., O'Reilly, B., Park, S., Yoshida, R., Bishop, J.M., Busenitz, J.K., Cason, N.M., Cunningham, J.D., Kenney, C.J., Kim, G.N., Lin, T.F., Mannel, E.J., Mountain, R.J., Puseljic, D.L., Ruchti, R.C., Shephard, W.D., Swiatek, J.A., Wu, Z.Y., Zanabria, M.E., Arena, V., Boca, G., Castoldi, C., Diaferia, R., Gianini, G., Ratti, S.P., Riccardi, C., Vitulo, P., Lopez, A., Wilson, J.R., Blackett, G.R., Pisharody, M., Handler, T., Sheldon, P.D.
• Format: Article
• Language: English
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(93)90216-5

Fermilab high-energy photoproduction experiment E687 provides a high statistics sample of the decay mode D + → K ∗0μ +ν (charge conjugates are implied). Our analysis yields a branching ratio of Γ (D + → K ∗0μ +ν) Γ (D + → K −π +π +) = 0.56±0.04±0.06 . The ratios of the form factors governing the decay are measured to be R ν = 1.74 ±0.27±0.28 and R 2 = 0.78±0.18±0.10, implying a polarization of Γ l Γ t = 1.20±0.13 ±0.13 for the electron decay. Finally, we report new limits on the decay modes D + → K − π + μ + ν (nonresonent) and D + → K ∗0π 0μ +ν .