Using a large sample of D0→K -μ+ν and D0→π -μ+ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of the q2 dependence for the f+(q2) form factor. These measured f+(q 2) form factors are fit to common parameterizations such as the pole dominance form and compared to recent unquenched Lattice QCD calculations. We find mpole=1.93±0.05±0.03 GeV/c2 for D 0→K-μ+ν and mpole=1. 91-0.15+0.30±0.07 GeV/c2 for D 0→π-μ+ν and f- (K)(0)/f+(K)(0)=-1.7-1.4 +1.5±0.3.
Measurement of the q**2 dependence of the D0 --> k- mu+ nu and D0 --> pi- mu+ nu form factors / J.M. Link, P.M. Yager, J.C. Anjos, I. Bediaga, C. Gobel, A.A. Machado, J. Magnin, A. Massafferri, J.M. de Miranda, I.M. Pepe, E. Polycarpo, A.C. dos Reis, S. Carrillo, E. Casimiro, E. Cuautle, A. Sanchez-Hernandez, C. Uribe, F. Vazquez, L. Agostino, L. Cinquini, J.P. Cumalat, B. O'Reilly, I. Segoni, K. Stenson, J.N. Butler, H.W.K Cheung, G. Chiodini, I. Gaines, P.H. Garbincius, L.A. Garren, E. Gottschalk, P.H. Kasper, A.E. Kreymer, R. Kutschke, M. Wang, L. Benussi, M. Bertani, S. Bianco, F.L. Fabbri, A. Zallo, M. Reyes, C. Cawlfield, D.Y. Kim, A. Rahimi, J. Wiss, R. Gardner, A. Kryemadhi, Y.S. Chung, J.S. Kang, B.R. Ko, J.W. Kwak, K.B. Lee, K. Cho, H. Park, G. Alimonti, S. Barberis, M. Boschini, A. Cerutti, P. D'Angelo, M. Di Corato, P. Dini, L. Edera, S. Erba, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, M. Mezzadri, L. Moroni, D. Pedrini, C. Pontoglio, F. Prelz, M. Rovere, S. Sala, T.F. Davenport, V. Arena, G. Boca, G. Bonomi, G. Gianini, G. Liguori, D.L. Pegna, M.M. Merlo, D. Pantea, S.P. Ratti, C. Riccardi, P. Vitulo, H. Hernandez, A.M. Lopez, H. Mendez, A. Paris, J. Quinones, J.E. Ramirez, Y. Zhang, J.R. Wilson, T. Handler, R. Mitchell, D. Engh, M. Hosack, W.E. Johns, E. Luiggi, J.E. Moore, M. Nehring, P.D. Sheldon, E.W. Vaandering, M. Webster, M. Sheaff. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 607:3-4(2005), pp. 233-242.
Measurement of the q**2 dependence of the D0 --> k- mu+ nu and D0 --> pi- mu+ nu form factors
F. Leveraro;G. Gianini;
2005
Abstract
Using a large sample of D0→K -μ+ν and D0→π -μ+ν decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of the q2 dependence for the f+(q2) form factor. These measured f+(q 2) form factors are fit to common parameterizations such as the pole dominance form and compared to recent unquenched Lattice QCD calculations. We find mpole=1.93±0.05±0.03 GeV/c2 for D 0→K-μ+ν and mpole=1. 91-0.15+0.30±0.07 GeV/c2 for D 0→π-μ+ν and f- (K)(0)/f+(K)(0)=-1.7-1.4 +1.5±0.3.
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