Using a large sample of D+ -> K- pi+ mu+ nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present the first measurements of the helicity basis form factors free from the assumption of spectroscopic pole dominance. We also present the first information on the form factor that controls the s-wave interference discussed in a previous paper by the FOCUS collaboration. We find reasonable agreement with the usual assumption of spectroscopic pole dominance and measured form factor ratios.
A non-parametric approach to the D+ ---> K*0 mu+ nu form factors / J.M. Link, P.M. Yager, J.C. Anjos, I. Bediaga, C. Castromonte, 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, Falso 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, S. Pacetti, 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. - 633:2-3(2006), pp. 183-189.
A non-parametric approach to the D+ ---> K*0 mu+ nu form factors
F. Leveraro;G. Gianini;
2006
Abstract
Using a large sample of D+ -> K- pi+ mu+ nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present the first measurements of the helicity basis form factors free from the assumption of spectroscopic pole dominance. We also present the first information on the form factor that controls the s-wave interference discussed in a previous paper by the FOCUS collaboration. We find reasonable agreement with the usual assumption of spectroscopic pole dominance and measured form factor ratios.Pubblicazioni consigliate
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