Hadronic mass spectrum analysis of D+→K−π+μ+ν decay and measurement of the K∗(892)0 mass and width
- Link, J.M.
- Yager, P.M.
- Anjos, J.C.
- Bediaga, I.
- Göbel, C.
- Machado, A.A.
- Magnin, J.
- Massafferri, A.
- de Miranda, J.M.
- Pepe, I.M.
- Polycarpo, E.
- dos Reis, A.C.
- Carrillo, S.
- Casimiro, E.
- Cuautle, E.
- Sánchez-Hernández, A.
- Uribe, C.
- Vázquez, F.
- Agostino, L.
- Cinquini, L.
- Cumalat, J.P.
- O'Reilly, B.
- Segoni, I.
- Stenson, K.
- Butler, J.N.
- Cheung, H.W.K.
- Chiodini, G.
- Gaines, I.
- Garbincius, P.H.
- Garren, L.A.
- Gottschalk, E.
- Kasper, P.H.
- Kreymer, A.E.
- Kutschke, R.
- Wang, M.
- Benussi, L.
- Bertani, M.
- Bianco, S.
- Fabbri, F.L.
- Zallo, A.
- Reyes, M.
- Cawlfield, C.
- Kim, D.Y.
- Rahimi, A.
- Wiss, J.
- Gardner, R.
- Kryemadhi, A.
- Chung, Y.S.
- Kang, J.S.
- Ko, B.R.
- Kwak, J.W.
- 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.
- Inzani, P.
- Leveraro, F.
- Malvezzi, S.
- Menasce, D.
- Mezzadri, M.
- Moroni, L.
- Pedrini, D.
- Pontoglio, C.
- Prelz, F.
- Rovere, M.
- Sala, S.
- Davenport, T.F.
- Arena, V.
- Boca, G.
- Bonomi, G.
- Gianini, G.
- Liguori, G.
- Lopes Pegna, D.
- Merlo, M.M.
- Pantea, D.
- Ratti, S.P.
- Riccardi, C.
- Vitulo, P.
- 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.
DOIAbstract
AbstractWe present a Kπ mass spectrum analysis of the four-body semileptonic charm decay D+→K−π+μ+ν in the range of 0.65 GeV/c2<mKπ<1.5 GeV/c2. We observe a non-resonant contribution of 5.30±0.74−0.96+0.99% with respect to the total D+→K−π+μ+ν decay. For the K∗(892)0 resonance, we obtain a mass of 895.41±0.32−0.43+0.35 MeV/c2, a width of 47.79±0.86−1.06+1.32 MeV/c2, and a Blatt–Weisskopf damping factor parameter of 3.96±0.54−0.90+1.31 GeV−1. We also report 90% CL upper limits of 4% and 0.64% for the branching ratios Γ(D+→K¯∗(1680)0μ+ν)Γ(D+→K−π+μ+ν) and Γ(D+→K¯0∗(1430)0μ+ν)Γ(D+→K−π+μ+ν), respectively
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