Title
Dalitz plot analysis of the D+ → K- π+ π+ decay in the FOCUS experiment
Date Issued
13 September 2007
Access level
open access
Resource Type
journal article
Author(s)
Link J.M.
Yager P.M.
Anjos J.C.
Bediaga I.
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.
Frisullo V.
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.
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.
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.
Centro Brasileiro de Pesquisas Físicas
Abstract
Using data collected by the high-energy photoproduction experiment FOCUS at Fermilab we performed a Dalitz plot analysis of the Cabibbo favored decay D+ → K- π+ π+. This study uses 53653 Dalitz-plot events with a signal fraction of ∼ 97 %, and represents the highest statistics, most complete Dalitz plot analysis for this channel. Results are presented and discussed using two different formalisms. The first is a simple sum of Breit-Wigner functions with freely fitted masses and widths. It is the model traditionally adopted and serves as comparison with the already published analyses. The second uses a K-matrix approach for the dominant S-wave, in which the parameters are fixed by first fitting Kπ scattering data and continued to threshold by Chiral Perturbation Theory. We show that the Dalitz plot distribution for this decay is consistent with the assumption of two-body dominance of the final state interactions and the description of these interactions is in agreement with other data on the Kπ final state. © 2007 Elsevier B.V. All rights reserved.
Start page
1
End page
11
Volume
653
Issue
1
Language
English
OCDE Knowledge area
Física nuclear
Scopus EID
2-s2.0-34548202806
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
03702693
Sponsor(s)
We wish to acknowledge the assistance of the staffs of Fermi National Accelerator Laboratory, the INFN of Italy, and the physics departments of the collaborating institutions. This research was supported in part by the US National Science Fundation, the US Department of Energy, the Italian Istituto Nazionale di Fisica Nucleare and Ministero dell'Università e della Ricerca Scientifica e Tecnologica, the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico, CONACyT-México, the Korean Ministry of Education, and the Korean Science and Engineering Foundation.
Sources of information:
Directorio de Producción Científica
Scopus