The K−π+ S-wave from the D+→K−π+π+ decay

Using data from FOCUS (E831) experiment at Fermilab, we present a model independent partial-wave analysis of the K−π+ S-wave amplitude from the decay D+→K−π+π+. The S-wave is a generic complex function to be determined directly from the data fit. The P- and D-waves are parameterized by a sum of Brei...

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Veröffentlicht in:	Physics letters. B 2009-10, Vol.681 (1), p.14-21
Hauptverfasser:	Link, J.M., Yager, P.M., Bediaga, I., Castromonte, C., Machado, A.A., Magnin, J., Massafferri, A., de Miranda, J.M., Pepe, I.M., Polycarpo, E., dos Reis, A.C., Carrillo, S., Cuautle, E., Sánchez-Hernández, A., Uribe, C., Vázquez, F., Agostino, L., Cinquini, L., Cumalat, J.P., Frisullo, V., O'Reilly, B., Segoni, I., Stenson, K., Butler, J.N., Cheung, H.W.K., Chiodini, G., Gaines, I., Garren, L.A., Gottschalk, E., Kasper, P.H., Kreymer, A.E., Kutschke, R., Wang, M., Benussi, L., Bianco, S., Fabbri, F.L., Zallo, A., Casimiro, E., Reyes, M., Cawlfield, C., Kim, D.Y., Rahimi, A., Wiss, J., Gardner, R., Kryemadhi, A., Chung, Y.S., Kang, J.S., Ko, B.R., Lee, K.B., Cho, K., Park, H., Alimonti, G., Barberis, S., Boschini, M., Cerutti, A., D'Angelo, P., DiCorato, M., Dini, P., Edera, L., Erba, S., Leveraro, F., Malvezzi, S., Menasce, D., Mezzadri, M., Moroni, L., Pedrini, D., Pontoglio, C., Rovere, M., Sala, S., Davenport, T.F., Boca, G., Bonomi, G., Gianini, G., Liguori, G., Pegna, D. Lopes, Merlo, M.M., Ratti, S.P., Riccardi, C., Göbel, C., Otalora, J., Hernandez, H., Lopez, A.M., Mendez, H., Paris, A., Quinones, J., Ramirez, J.E., Zhang, Y., Wilson, J.R., Handler, T., Mitchell, R., Engh, D., Hosack, M., Johns, W.E., Luiggi, E., Moore, J.E., Nehring, M., Sheldon, P.D., Vaandering, E.W., Webster, M., Sheaff, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	AMPLITUDES D WAVES DECAY Experiment-HEP FERMILAB PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Beschreibung
Zusammenfassung:	Using data from FOCUS (E831) experiment at Fermilab, we present a model independent partial-wave analysis of the K−π+ S-wave amplitude from the decay D+→K−π+π+. The S-wave is a generic complex function to be determined directly from the data fit. The P- and D-waves are parameterized by a sum of Breit–Wigner amplitudes. The measurement of the S-wave amplitude covers the whole elastic range of the K−π+ system.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2009.09.057