The fermilab high-energy photoproduction experiment E687 provides a sample of approximately 90 events of the decay mode D(s)+→ phi mu+ nu. The ratios of the form factors governing the decay are measured to be Rv=1.8+-0.9+-0.2 and R2= 1.1+-0.8+-0.1, implying a polarization of G1/Gt=1.0+-0.5+-0.1 for the electron decay, consistent with our measurement of the form factor for the decay D+->anti(K0*) mu+ nu.
Measurement of the form factors for the decay D(s)+ → phi mu+ nu / P.L Frabetti, H.W.K. Cheung, J.P. Cumalat, D. Dallapiccola, J.F. Ginkel, S.V. Greene, W. Johns, M.S Nehring, J.N. Butler, S. Cihangir, I. Gaines, P.H. Garbincius, L. Garren, S.A. Gourlay, D.J. Harding, P. Kasper, A. Kreymer, P. Lebrun, S. Shukla, M. Vittone, S. Bianco, F.L. Fabbri, S. Sarwar, A. Zallo, R. Culbertson, R.W. Gardner, R. Greene, J. Wiss, G. Alimonti, G. Bellini, B. Caccianiga, L. Cinquini, M. Di Corato, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, E. Meroni, L. Moroni, D. Pedrini, L. Perasso, A. Sala, S. Sala, D. Torretta, D. Buchholz, D. Claes, B. Gobbi, B. O'Reilly, J.M. Bishop, N.M. Cason, C.J. Kennedy, G.N. Kim, T.F. Lin, D.L. Puseljic, R.C. Ruchti, W.D. Shephard, J.A. Swiatek, Z.Y. Wu, V. Arena, G. Boca, C. Castoldi, G. Gianini, S.P. Ratti, C. Riccardi, P. Vitulo, A. Lopez, G.P. Grim, V.S. Paolone, P.M. Yager, J.R. Wilson, P.D. Sheldon, F. Davenport, J.F. Filaseta, G.R. Blackett, M. Pisharody, T. Handler, B.J. Cheon, J.S. Kang, K.Y. Kim. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 328:1-2(1994 May 26), pp. 187-192.
Measurement of the form factors for the decay D(s)+ → phi mu+ nu
G. Bellini;M. Di Corato;F. Leveraro;E. Meroni;G. Gianini;
1994
Abstract
The fermilab high-energy photoproduction experiment E687 provides a sample of approximately 90 events of the decay mode D(s)+→ phi mu+ nu. The ratios of the form factors governing the decay are measured to be Rv=1.8+-0.9+-0.2 and R2= 1.1+-0.8+-0.1, implying a polarization of G1/Gt=1.0+-0.5+-0.1 for the electron decay, consistent with our measurement of the form factor for the decay D+->anti(K0*) mu+ nu.
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